An online UPS (Uninterruptible Power Supply) is a type of UPS that provides continuous power to the load even during a power outage. This is done by converting the incoming AC power to DC power stored in a battery. The battery power is then converted back to AC power and supplied to the load.https://en.wikipedia.org/wiki/Uninterruptible_power_supply
It’s a UPS that continuously supplies power to connected equipment even during power outages.
It achieves this by converting incoming AC power to DC power, storing it in a battery, and then converting it back to clean AC power for the equipment.
Why Use Online UPS?
Grid Power Challenges: Regular fluctuations, voltage spikes, and surges in grid power can damage sensitive equipment.
Best Protection: Online UPS provides the highest level of protection against these issues, making it ideal for critical applications like data centers and hospitals.
Advantages of Online UPS:
Continuous Power: Ensures uninterrupted power flow to equipment during outages.
Better Power Quality: Filters and regulates power, safeguarding equipment from surges and spikes.
Disadvantages of Online UPS:
Cost: The most expensive type of UPS.
Size and Complexity: Larger, heavier, and more complex to install and maintain.
Battery Life: Lower battery life due to constant use during normal operation.
Maintenance Cost: Battery replacement adds to maintenance costs.
Backup Time: Typically limited to 15-30 minutes due to practicalities of large battery banks.
Understanding the Function of Online UPS
Additional Points:
IoT Integration: Modern online UPS systems offer monitoring and control through Bluetooth and Wi-Fi applications.
Topology: Two main technologies are used:
High Frequency Triple Conversion
Isolation Transformer Double Conversion
Configurations: Available in single-phase and three-phase input/output based on load requirements.
Who Needs Online UPS?
Organizations requiring the highest level of protection for critical equipment, like:
Data centers
Hospitals
Industrial applications with sensitive machinery
Understanding the Function of Online UPS
In Conclusion:
Online UPS offers the best protection for sensitive equipment but comes at a higher cost due to its complexity and continuous power draw. Consider your specific needs and budget when choosing a UPS system.
Understanding the Function of Online UPS
In the Grid Power, which is available in homes, offices, factories and other establishments, several challenges are faced by the critical equipment installed in these areas. The mains AC Grid is subject to regular fluctuations, some of which can significantly threaten the integrity and continuity of the sophisticated equipment.
Understanding the Function of Online UPS
Understanding the Function of Online UPS
Voltage spikes and surges
Online UPSs are the most expensive type of UPS, but they offer the best protection for sensitive equipment. They are often used in data centres, hospitals, and other critical applications where a power outage can cause serious damage.
Understanding the Function of Online UPS
Here are some of the advantages of online UPSs:
Continuous power: Online UPSs provide continuous power to the load, even during a power outage. This is because the load is always connected to the battery power. So, an extra power bill is generated even when the power is available, as the power consumption in Online UPS is higher than any other type of UPS.
Better power quality: Online UPSs provide better power quality than other types of UPSs. This is because the battery power is filtered and regulated, which helps to protect sensitive equipment from power surges and spikes.
battery life: Online UPSs typically have a lower battery life than other types of UPSs. This is because the battery power is used to power the load during normal operation as well.
IOT-based Online UPS: Nowadays, the Online UPS parameters are controlled and monitored through Bluetooth and Wifi-based applications on mobile and computer-based applications.https://suvastika.com/bluetooth-based-online-ups-3p-3p/
Understanding the Function of Online UPS
Topology : There are two type of technologies used to make the Online UPS one is High Frequency based Triple Conversion technology and other is Isolation transformer based Double Conversion Technology.
These Online UPSs are made for single phase and three phase Input and Output based configuration depending upon the load configuration.
Here are some of the disadvantages of online UPSs:
Expensive: Online UPSs are the most expensive type of UPS.
Large: Online UPSs are typically larger and heavier than other types of UPSs.
More complex: Online UPSs are more complex than other types of UPSs. This can make them more difficult to install and maintain.
Battery Life : there is a battery life challenge as a maintenance cost.
Back up Time : The back up time is generally 15 min to 30 minutes as the bigger Online UPS require a bigger battery bank so generally Online UPS comes with 15 to 30 minutes back up time only.
Understanding the Function of Online UPS
If you need the highest level of protection for your sensitive equipment, then an online UPS is the best choice. However, a different type of UPS may be better if you seek a more affordable option.
The history of lithium-ion battery can be traced back to the early 1970s when a team of scientists at Exxon were developing a new type of battery that would be more efficient and safer than the lead-acid batteries that were commonly used.https://en.wikipedia.org/wiki/History_of_the_lithium-ion_battery
One of the scientists on the team, M. Stanley Whittingham discovered that a lithium intercalation compound, which is a material that can store lithium ions, could be used to create a new type of battery. Whittingham’s work led to the developing of the first lithium-ion battery in 1976.
Stanley Whittingham is a British-American chemist known as the “father of the lithium-ion battery”. 1976, he developed the first lithium-ion battery based on a titanium disulfide cathode and a lithium-aluminium anode. The battery had high energy density, and the diffusion of lithium ions into the titanium desulphated cathode was reversible, making the battery rechargeable.
Whittingham’s work on lithium batteries laid the foundations for others’ later developments, and he is therefore called the founding father of lithium-ion batteries. Lithium-ion batteries are now used in various devices, including laptops, smartphones, tablets, and electric vehicles.
In 2019, Whittingham shared the Nobel Prize in Chemistry with John Goodenough and Akira Yoshino for their work on developing lithium-ion batteries.
History of lithium-ion Battery
Here are some of the key features of Stanley Whittingham’s lithium-ion battery:
High energy density: The battery has a high energy density, meaning it can store much energy in a small space. This makes it ideal for portable devices such as laptops and smartphones.
Rechargeable: The battery is rechargeable, meaning that it can be used multiple times before it needs to be replaced. This makes it a more sustainable option than disposable batteries.
Long lifespan: The battery has a long lifespan, meaning it can last many years. This makes it a cost-effective option in the long run.
Stanley Whittingham’s work on lithium-ion batteries has had a major impact on the world. His batteries are now used in various devices, and they have helped make portable electronics more affordable and accessible. They have also played a role in the development of electric vehicles, which are helping to reduce our reliance on fossil fuels.
History of lithium-ion Battery
History of lithium-ion Battery
In the following years, other scientists contributed significantly to developing lithium-ion batteries. In 1980, John Goodenough developed a new type of cathode material for lithium-ion batteries that made them more efficient. In 1985, Akira Yoshino developed a new type of anode material that made lithium-ion batteries safer.
Akira Yoshino is a Japanese chemist known for his work on lithium-ion batteries. In 1985, he developed the first commercially viable lithium-ion battery, which used a carbon anode and a lithium cobalt oxide cathode. This battery was much lighter and more powerful than previous types of batteries, and it quickly became the standard for portable electronics such as laptops and smartphones.
Yoshino’s work on lithium-ion batteries has had a major impact on the world. These batteries are now used in various devices, including electric vehicles, power tools, and medical devices. They have helped to make portable electronics more affordable and accessible, and they have played a role in the development of renewable energy technologies.
In 2019, Yoshino was awarded the Nobel Prize in Chemistry with Stanley Whittingham and John Goodenough for their work on developing lithium-ion batteries.
History of lithium-ion Battery
Here are some of the key contributions of Akira Yoshino to the development of lithium-ion batteries:
He developed the first commercially viable lithium-ion battery.
He used a carbon anode, which made the battery lighter and more powerful than previous types of batteries.
He used a lithium cobalt oxide cathode, which made the battery more stable and less likely to catch fire.
His work has led to the development of lithium-ion batteries, now used in various devices.
History of lithium-ion Battery
Akira Yoshino is a pioneer in the field of lithium-ion batteries.
John B. Goodenough is an American physicist and materials scientist known for his work on lithium-ion batteries. In 1980, he developed the lithium cobalt oxide cathode, the most common type of cathode used in lithium-ion batteries. This cathode made lithium-ion batteries much more powerful and energy-dense than previous types of batteries.
History of lithium-ion Battery
Goodenough’s work on lithium-ion batteries has had a major impact on the world. These batteries are now used in various devices, including laptops, smartphones, tablets, electric vehicles, and power tools. They have helped to make portable electronics more affordable and accessible, and they have played a role in the development of renewable energy technologies.
History of lithium-ion Battery
In 2019, Goodenough was awarded the Nobel Prize in Chemistry along with Stanley Whittingham and Akira Yoshino for their work on the development of lithium-ion batteries. John B. Goodenough, whose contribution to lithium-ion battery technology in 1980 helped him win the 2019 Nobel Prize in chemistry — making him the oldest man to receive the accolade — died on June 25 2023, at the age of 100. His work transformed the tech world, sparking the wireless revolution that made portable electronics ubiquitous.
History of lithium-ion Battery
Here are some of the key contributions of John Goodenough to the development of lithium-ion batteries:
He developed the lithium cobalt oxide cathode, now the most common type used in lithium-ion batteries.
He showed that lithium cobalt oxide could make rechargeable batteries much more powerful and energy-dense than previous types of batteries.
His work has led to the development of lithium-ion batteries, now used in various devices.
History of lithium-ion Battery
John Goodenough is a pioneer in the field of lithium-ion batteries. His work has had a major impact on the world, and it has helped to make portable electronics more affordable and accessible. He is a true inspiration to scientists and engineers around the world.
In addition to his work on lithium-ion batteries, Goodenough has also significantly contributed to developing other types of batteries, including sodium-ion and magnesium-ion batteries. He is also a co-inventor of the solid-state electrolyte, a potential replacement for the liquid electrolyte used in lithium-ion batteries.
Goodenough is a true polymath and one of the most influential scientists of our time. His work has profoundly impacted the development of clean energy technologies, and it is likely to continue for many years.
History of lithium-ion Battery
Sony and Asahi Kasei introduced the first commercial lithium-ion battery in 1991. The battery was developed by a team of scientists led by Yoshio Nishi of Sony and Akira Yoshino of Asahi Kasei.
The lithium-ion battery was a breakthrough in battery technology. It was much lighter and more powerful than previous types of batteries, and it had a longer lifespan. This made it ideal for portable electronics such as laptops and smartphones.
History of lithium-ion Battery
The lithium-ion battery has revolutionized the way we use portable electronics. It has made it possible to have smaller, lighter, and more powerful devices than ever before. It has also played a role in developing electric vehicles and other clean energy technologies.
Asahi Kasei continued to develop lithium-ion batteries after the initial commercialization. In 1992, they developed a new type of separator for lithium-ion batteries that made them safer and more reliable. They also developed new cathode materials that improved the performance of the batteries.
Sony and Asahi Kasei are still major players in today’s lithium-ion battery market. They continue to develop new technologies to improve the performance and safety of lithium-ion batteries.
The first commercial lithium-ion batteries were introduced in the early 1990s. Since then, lithium-ion batteries have become the standard type of battery for many portable electronic devices, such as laptops, smartphones, and tablets. After that, medical devices, toys, drones, and electric and electronic equipment that needed backup started using Lithium batteries. They are also used in electric vehicles, Energy Storage Systems, Inverters, UPS and other applications.
Lithium-ion batteries have several advantages over other types of batteries. They have a high energy density, meaning they can store much energy in a small space. They also have a long lifespan and can be recharged many times. However, lithium-ion batteries can be dangerous if they are not handled properly. They can catch fire if they are damaged or if they are not used within their specified temperature range.
Despite the risks, lithium-ion batteries are a major technological advancement that has revolutionized how we use portable electronic devices. They are also becoming increasingly important in developing electric vehicles and other applications.
History of lithium-ion Battery
Here are some of the key milestones in the history of lithium-ion batteries:
1976: M. Stanley Whittingham developed the first lithium-ion battery.
1980: John Goodenough develops a new cathode material for lithium-ion batteries that makes them more efficient.
1985: Akira Yoshino develops a new anode material for lithium-ion batteries that makes them safer.
1991: Sony and Asahi Kasei introduce the first commercial lithium-ion batteries.
1996: The first lithium-ion battery-powered laptop computer is released.
2007: The first lithium-ion battery-powered electric car is released.
2023: The first lithium-ion battery-powered commercial aircraft is released.
History of lithium-ion Battery
History of lithium-ion Battery
Many different chemical compositions for Lithium have been developed over the last decade because of its usage in almost every field, replacing all kinds of batteries like Lead Acid VRLA Tubular batteries and 2Volt Deep discharge cells for various applications. Making a capacity bank sizing is not a challenge like in Lead Acid battery, which only has a monoblock of 2V,6V and 12Volt. Another challenge is balancing the batteries; lead-acid batteries’ controls for overcharge and over-discharge are impossible. So after the success of basic Lithium-ion batteries, many new types of cells are being developed to increase the life of the battery and fast charge the batteries in Lithium battery space. https://suvastika.com/type-of-lithium-batteries-available-in-the-market/
Various companies also develop Battery Management Systems to handle the Lithium cells in a battery pack to maintain the balancing and life of the cells. The main heart of any lithium battery is the BMS, which is also improved with newer technologies daily.
History of lithium-ion Battery
The world is moving toward storage technology, and Electric Vehicle technology will replace the oil and gas industry. Storage will reduce the cost of power generation and distribution cost substantially shortly.
Lithium-ion and lithium iron phosphate (LiFePO4) batteries are rechargeable batteries that use lithium ions as the charge carriers. However, they have some key differences in composition, performance, and safety.
Lithium-ion batteries use various cathode materials, such as cobalt oxide, manganese oxide, or nickel oxide.https://en.wikipedia.org/wiki/Lithium_iron_phosphate_batteryA lithium-ion (Li-ion) is a rechargeable battery in which lithium ions move from the negative electrode to the positive electrode during discharge and back when charging. Li-ion batteries are used in various electronic devices, including laptops, smartphones, tablets, cameras, and electric vehicles.Here are some of the advantages of lithium-ion batteries:
High energy density: Li-ion batteries have a high energy density, which means they can store much energy in a small space. This makes them ideal for portable devices.Long cycle life: Li-ion batteries can be recharged and discharged many times, typically 300-1,200 times.Low self-discharge rate: Li-ion batteries have a low self-discharge rate, which means they lose their charge slowly when not in use.Fast charging: Li-ion batteries can be charged quickly.
Here are some of the disadvantages of lithium-ion batteries:
Expensive: Li-ion batteries are more expensive than other types of batteries, such as lead-acid batteries.Sensitive to heat: Li-ion batteries can be damaged by heat, so it is important to keep them cool.Can catch fire: In rare cases, Li-ion batteries can catch fire, especially if they are damaged or not used properly.
Overall, lithium-ion batteries are a good choice for many applications where a high energy density and long cycle life are important. However, they are more expensive than other types of batteries and can be damaged by heat. It is important to use them properly and take precautions to prevent them from catching fire.
LiFePO4 battery stands for Lithium Iron Phosphate battery. It is a lithium-ion battery that uses lithium iron phosphate as the cathode material. LiFePO4 batteries are known for their long cycle life, high safety, and low maintenance. They are also relatively inexpensive to produce.https://suvastika.com/types-of-lithium-lifepo4-battery-cells/
Here are some of the advantages of LiFePO4 batteries:
Long cycle life: LiFePO4 batteries can be recharged and discharged thousands of times, making them ideal for applications where long battery life is important.
High safety: LiFePO4 batteries are less likely to overheat or catch fire than other types of lithium-ion batteries. This makes them a safer choice for applications where safety is a priority.
Low maintenance: LiFePO4 batteries require very little maintenance. They do not need to be balanced or calibrated and are not susceptible to sulfation.
Relatively inexpensive: LiFePO4 batteries are relatively inexpensive to produce, making them a more affordable option than other lithium-ion batteries.
Here are some of the disadvantages of LiFePO4 batteries:
Lower energy density: LiFePO4 batteries have a lower energy density than other lithium-ion batteries. This means that they can store less energy in a given volume.
Not suitable for high-power applications: LiFePO4 batteries are not suitable. They have a lower discharge rate than other types of lithium-ion batteries.
Overall, LiFePO4 batteries are a good choice for applications where long battery life, high safety, and low maintenance are important. They are unsuitable for high-power applications but are a good option for many other applications.
Lithium-ion batteries have a higher energy density than LiFePO4 batteries, which means they can store more energy in a given volume.
LiFePO4 batteries have a longer cycle life than lithium-ion batteries, which can be recharged and discharged more times before they lose capacity.
LiFePO4 batteries are also less sensitive to temperature changes than lithium-ion batteries.
Safety
Lithium-ion batteries are more prone to overheating and catching fire than LiFePO4 batteries.
This is because lithium-ion batteries use a flammable electrolyte.
LiFePO4 batteries are considered to be safer because they use a non-flammable electrolyte. So far, they are the safest Lithium batteries available in the market.
Cost
Lithium-ion batteries are typically more expensive to produce than LiFePO4 batteries.
Applications
Lithium-ion batteries are used in various applications, including laptops, smartphones, and electric vehicles.
LiFePO4 batteries are used in applications where safety is a priority, such as electric vehicles and solar power systems.
Which battery is better?
The best battery for a particular application will depend on the specific requirements of that application. For example, a lithium-ion battery may be better if the application requires a high energy density. However, if the application requires a long cycle life or high safety, then a LiFePO4 battery may be the better choice.
Here is a table summarizing the key differences between lithium-ion and LiFePO4 batteries:
FEATURE
LITHIUM-ION
LIFEPO4
Composition
Various cathode materials
Lithium iron phosphate
Energy density
Higher
Lower
Cycle life
Shorter
Longer
Temperature sensitivity
More sensitive
Less sensitive
Safety
Less safe
Safer
Cost
More expensive
Less expensive
Applications
Laptops, smartphones, electric vehicles,
Electric vehicles, solar power systems, inverter, UPS and BESS
Lithium-ion and lithium iron phosphate (LiFePO4) batteries are rechargeable batteries that use lithium ions as the charge carriers. However, they have some key differences in composition, performance, and safety.
Lithium-ion batteries use various cathode materials, such as cobalt oxide, manganese oxide, or nickel oxide.https://en.wikipedia.org/wiki/Lithium_iron_phosphate_batteryA lithium-ion (Li-ion) is a rechargeable battery in which lithium ions move from the negative electrode to the positive electrode during discharge and back when charging. Li-ion batteries are used in various electronic devices, including laptops, smartphones, tablets, cameras, and electric vehicles.Here are some of the advantages of lithium-ion batteries:
High energy density: Li-ion batteries have a high energy density, which means they can store much energy in a small space. This makes them ideal for portable devices.
Long cycle life: Li-ion batteries can be recharged and discharged many times, typically 300-1,200 times.
Low self-discharge rate: Li-ion batteries have a low self-discharge rate, which means they lose their charge slowly when not in use.
Fast charging: Li-ion batteries can be charged quickly.
Here are some of the disadvantages of lithium-ion batteries:
Expensive: Li-ion batteries are more expensive than other types of batteries, such as lead-acid batteries.
Sensitive to heat: Li-ion batteries can be damaged by heat, so it is important to keep them cool.
Can catch fire: In rare cases, Li-ion batteries can catch fire, especially if they are damaged or not used properly.
Overall, lithium-ion batteries are a good choice for many applications where a high energy density and long cycle life are important. However, they are more expensive than other types of batteries and can be damaged by heat. It is important to use them properly and take precautions to prevent them from catching fire.
LiFePO4 battery stands for Lithium Iron Phosphate battery. It is a lithium-ion battery that uses lithium iron phosphate as the cathode material. LiFePO4 batteries are known for their long cycle life, high safety, and low maintenance. They are also relatively inexpensive to produce.https://suvastika.com/types-of-lithium-lifepo4-battery-cells/
Here are some of the advantages of LiFePO4 batteries:
Long cycle life: LiFePO4 batteries can be recharged and discharged thousands of times, making them ideal for applications where long battery life is important.
High safety: LiFePO4 batteries are less likely to overheat or catch fire than other types of lithium-ion batteries. This makes them a safer choice for applications where safety is a priority.
Low maintenance: LiFePO4 batteries require very little maintenance. They do not need to be balanced or calibrated and are not susceptible to sulfation.
Relatively inexpensive: LiFePO4 batteries are relatively inexpensive to produce, making them a more affordable option than other lithium-ion batteries.
Here are some of the disadvantages of LiFePO4 batteries:
Lower energy density: LiFePO4 batteries have a lower energy density than other lithium-ion batteries. This means that they can store less energy in a given volume.
Not suitable for high-power applications: LiFePO4 batteries are not suitable. They have a lower discharge rate than other types of lithium-ion batteries.
Overall, LiFePO4 batteries are a good choice for applications where long battery life, high safety, and low maintenance are important. They are unsuitable for high-power applications but are a good option for many other applications.
Lithium-ion batteries have a higher energy density than LiFePO4 batteries, which means they can store more energy in a given volume.
LiFePO4 batteries have a longer cycle life than lithium-ion batteries, which can be recharged and discharged more times before they lose capacity.
LiFePO4 batteries are also less sensitive to temperature changes than lithium-ion batteries.
Safety
Lithium-ion batteries are more prone to overheating and catching fire than LiFePO4 batteries.
This is because lithium-ion batteries use a flammable electrolyte.
LiFePO4 batteries are considered to be safer because they use a non-flammable electrolyte. So far, they are the safest Lithium batteries available in the market.
Cost
Lithium-ion batteries are typically more expensive to produce than LiFePO4 batteries.
Applications
Lithium-ion batteries are used in various applications, including laptops, smartphones, and electric vehicles.
LiFePO4 batteries are used in applications where safety is a priority, such as electric vehicles and solar power systems.
Which battery is better?
The best battery for a particular application will depend on the specific requirements of that application. For example, a lithium-ion battery may be better if the application requires a high energy density. However, if the application requires a long cycle life or high safety, then a LiFePO4 battery may be the better choice.
Here is a table summarizing the key differences between lithium-ion and LiFePO4 batteries:
FEATURE
LITHIUM-ION
LIFEPO4
Composition
Various cathode materials
Lithium iron phosphate
Energy density
Higher
Lower
Cycle life
Shorter
Longer
Temperature sensitivity
More sensitive
Less sensitive
Safety
Less safe
Safer
Cost
More expensive
Less expensive
Applications
Laptops, smartphones, electric vehicles,
Electric vehicles, solar power systems, inverter, UPS and BESS
There are different types of Lithium batteries available in the market nowadays, with variations in terms of chemicals and construction of each type of battery type.
Lithium-ion Battery: A lithium-ion battery is a rechargeable battery that reversibly reduces lithium ions to store energy. The negative electrode of a conventional lithium-ion cell is typically graphite, a form of carbon. The positive electrode is a metal oxide, most commonly cobalt oxide. The electrolyte is a lithium salt dissolved in an organic solvent.
Lithium-ion batteries are used in a wide variety of applications, including:
Consumer electronics: cell phones, laptops, tablets, cameras, etc.
Power tools: cordless drills, saws, etc.
Lithium cobalt oxide (LiCoO2): This is the oldest type of lithium-ion cell and is still widely used in portable electronics such as laptops and smartphones. It has a high energy density but a relatively low cycle life.A lithium cobalt battery is a type of lithium-ion battery that uses cobalt oxide as the positive electrode material. Cobalt oxide has a high specific energy, meaning it can store much energy in a small space. This makes lithium cobalt batteries ideal for applications where weight and space are important, such as cell phones, laptops, and electric vehicles.However, cobalt oxide also has some drawbacks. It is a relatively expensive material, and it can be not easy to source. Lithium cobalt batteries have a relatively short lifespan and can be prone to safety issues if not properly managed.Despite these drawbacks, lithium cobalt batteries are still the most common lithium-ion battery used today. They offer a good balance of performance and cost and are well-suited for various applications.Lithium cobalt oxide (LiCoO2) cell
Lithium nickel manganese cobalt oxide (LiNiMnCoO2): This cell type is becoming increasingly popular due to its higher energy density and longer cycle life than LiCoO2 cells. It is also less expensive.Lithium nickel manganese cobalt oxide (NMC) is a lithium-ion battery cathode material made of nickel, manganese, and cobalt. It is a popular choice for electric vehicles and other applications requiring a high energy density and long lifespan.NMC batteries have a higher specific energy than lithium cobalt batteries but have a lower specific power. This means they can store more energy per unit mass but cannot output as much power as lithium cobalt batteries.NMC batteries are also more expensive than lithium cobalt batteries but are becoming more affordable as technology develops.The specific energy of NMC batteries depends on the composition of the material. NMC111 has a specific energy of about 200 Wh/kg, NMC532 has a specific energy of about 220 Wh/kg, and NMC622 has a specific energy of about 240 Wh/kg.The lifespan of NMC batteries also depends on the composition of the material. NMC111 has a lifespan of about 1,000 cycles, NMC532 has a lifespan of about 1,500 cycles, and NMC622 has a lifespan of about 2,000 cycles.NMC batteries are a promising technology for use in electric vehicles and other applications that require a high energy density and long lifespan. However, they are still more expensive than lithium cobalt batteries and have a lower specific power. As the technology develops, NMC batteries are expected to become more affordable and perform better.Lithium nickel manganese cobalt oxide (LiNiMnCoO2) cell
Lithium iron phosphate (LiFePO4): This type of cell is known for its safety and long cycle life. It has a lower energy density than other types of lithium-ion cells, but it is still suitable for many applications, such as electric vehicles and solar batteries.A lithium iron phosphate (LFP) battery is a lithium-ion battery that uses lithium iron phosphate as the cathode material. LFP batteries are known for their high safety, long lifespan, and low cost.The chemical formula for LFP is LiFePO4. The iron phosphate compound is non-flammable and does not release toxic gases when exposed to heat or fire. This makes LFP batteries a safer choice than other types of lithium-ion batteries, such as lithium cobalt batteries.LFP batteries also have a long lifespan. They can last up to 5,000 cycles, about five times longer than lithium cobalt batteries. This makes them a good choice for applications where the battery will be used for a long time, such as electric vehicles and solar power storage systems.LFP batteries are also relatively inexpensive. They are the least expensive lithium-ion battery, making them a good choice for budget-minded consumers.
Pouch cell LifePO4
Lithium iron phosphate (LiFePO4) cell
Lithium titanate (Li4Ti5O12): This cell type has a very high power density and can be used in applications requiring high currents, such as electric vehicles and power tools. However, it has a low energy density and a relatively short cycle life.Lithium titanate (Li4Ti5O12), also known as LTO, is a lithium-ion battery anode material. It has several advantages over other anode materials, including:
High specific energy: LTO is about 120 Wh/kg, higher than graphite, the most common anode material.
Long lifespan: LTO can last up to 10,000 cycles, much longer than graphite.
Excellent cycling stability: LTO does not suffer from the capacity fade common in graphite.
Good high-temperature performance: LTO can operate at temperatures up to 180°C, which makes it a good choice for applications where the battery will be exposed to high temperatures.
Safe and non-flammable: LTO is not flammable and does not release toxic gases when exposed to heat or fire.
However, LTO also has some disadvantages, including:
Low specific power: LTO has a lower specific power than graphite, which means it cannot output as much power as graphite.
High cost: LTO is more expensive than graphite.
Overall, lithium titanate is a promising anode material for lithium-ion batteries. It offers a good balance of performance and cost, and it is well-suited for applications where high specific energy, long lifespan, and safety are important considerations.Lithium titanate (Li4Ti5O12) cell
Lithium polymer: This cell type is made with a polymer electrolyte instead of a liquid electrolyte. This makes it more flexible and lightweight than other types of lithium-ion cells. However, it has a lower energy density and a shorter cycle life.A lithium polymer battery is a type of lithium-ion battery that uses a polymer electrolyte instead of a liquid electrolyte. The polymer electrolyte is a solid material of polymer chains embedded with lithium ions.
Lithium polymer batteryLithium polymer cell
Lithium polymer batteries have several advantages over traditional lithium-ion batteries, including:
Higher energy density: Lithium polymer batteries can store more energy per unit volume than traditional lithium-ion batteries. This makes them a good choice for applications where weight and space are important, such as laptops and smartphones.
Lighter weight: Lithium polymer batteries are lighter than traditional lithium-ion batteries. This makes them a good choice for applications where weight is a major concern, such as wearable devices and drones.
More flexible: Lithium polymer batteries can be moulded into different shapes, making them a good choice for applications where the battery needs to fit into a specific space.
Safer: Lithium polymer batteries are less likely to leak or catch fire than traditional lithium-ion batteries.
However, lithium polymer batteries also have some disadvantages, including:
Higher cost: Lithium polymer batteries are more expensive than traditional lithium-ion batteries.
Less mature technology: Lithium polymer batteries are a newer technology than traditional lithium-ion batteries, so they are not as widely available, and their performance is not as well-established.
More sensitive to temperature: Lithium polymer batteries are more sensitive to temperature than traditional lithium-ion batteries. They should not be exposed to extreme temperatures, which can damage the battery.
Lithium polymer cellLithium Air battery:A lithium-air battery is a type of metal-air battery that uses lithium metal as the anode and oxygen from the air as the cathode. It can potentially be a much more energy-dense battery than traditional lithium-ion batteries, with a theoretical specific energy of up to 11,140 Wh/kg.However, lithium-air batteries also have some challenges that must be addressed before being commercially viable. One challenge is that lithium metal is very reactive and can easily form dendrites, which can short-circuit the battery. Another challenge is that the electrolyte in a lithium-air battery must be able to conduct lithium and oxygen ions. Still, it must also be stable and prevent the formation of dendrites.Researchers are developing new electrolytes and designs for lithium-air batteries that can overcome these challenges. If these challenges can be addressed, lithium-air batteries could revolutionize the battery industry and make it possible to create electric vehicles with much longer ranges.Here are some of the advantages of lithium-air batteries:
High energy density: Lithium-air batteries have the potential to be much more energy-dense than traditional lithium-ion batteries. This means they could store more energy per unit weight or volume, benefiting applications such as electric vehicles and drones.
Low cost: Lithium is a relatively abundant element, which could make lithium-air batteries more affordable than other types of batteries.
Environmentally friendly: Lithium-air batteries do not use toxic materials, making them a more environmentally friendly option than other types of batteries.
Here are some of the challenges of lithium-air batteries:
Safety: Lithium metal is very reactive and can easily form dendrites, which can short-circuit the battery. This can be a safety hazard.
Electrolyte stability: The electrolyte in a lithium-air battery must be able to conduct lithium ions and oxygen ions, but it must also be stable and prevent the formation of dendrites. This is a challenge that researchers are still working to overcome.
Cycle life: Lithium-air batteries have a relatively short cycle life, so they can only be recharged a few times before degrade. This is another challenge that researchers are working to overcome.
Overall, lithium-air batteries have the potential to be a breakthrough in the battery industry. However, some challenges still need to be addressed before they can be commercially viable.Lithium Sulpur battery:A lithium–sulfur (Li–S) battery is a rechargeable battery that uses lithium as the anode and sulfur as the cathode. It can potentially be a much more energy-dense battery than traditional lithium-ion batteries, with a theoretical specific energy of up to 2600 Wh/kg.However, lithium–sulfur batteries also have some challenges that must be addressed before being commercially viable. One challenge is that sulfur is a relatively poor conductor of electricity, making it difficult to achieve a high power output. Another challenge is that sulfur can react with the electrolyte in the battery, forming polysulfide intermediates that can damage the battery.Researchers are developing new electrolytes and designs for lithium–sulfur batteries that can overcome these challenges. If these challenges can be addressed, lithium–sulfur batteries could revolutionize the battery industry and make it possible to create electric vehicles with much longer ranges.Here are some of the advantages of lithium-sulfur batteries:
High energy density: Lithium–sulfur batteries have the potential to be much more energy-dense than traditional lithium-ion batteries. This means they could store more energy per unit weight or volume, benefiting applications such as electric vehicles and drones.
Low cost: Lithium is a relatively abundant element, and sulfur is a relatively inexpensive material, which could make lithium–sulfur batteries more affordable than other types of batteries.
Environmentally friendly: Lithium–sulfur batteries do not use any toxic materials, which makes them a more environmentally friendly option than other types of batteries.
Here are some of the challenges of lithium-sulfur batteries:
Poor conductivity of sulfur: Sulfur is a relatively poor conductor of electricity, making it difficult to achieve a high power output.
Reactivity of sulfur: Sulfur can react with the electrolyte in the battery, which can lead to the formation of polysulfide intermediates that can damage the battery.
Low cycle life: Lithium–sulfur batteries have a relatively low cycle life, which means they can only be recharged a limited number of times before they start to degrade.
Overall, lithium–sulfur batteries have the potential to be a breakthrough in the battery industry. However, some challenges still need to be addressed before they can be commercially viable.Lithium-ion flow battery :A lithium-ion flow battery (LIBF) is a type of flow battery that uses lithium ions as the charge carrier. The electrolyte in a LIBF is a liquid solution of lithium salts, and the electrodes are made of porous materials capable of storing lithium ions.LIBFs have several advantages over other types of flow batteries, including:
High energy density: LIBFs can store more energy per unit volume than other types of flow batteries. This makes them a good choice for applications where weight and space are important, such as electric vehicles and grid energy storage.
Long lifespan: LIBFs can last for thousands of cycles, much longer than other types of flow batteries.
Scalability: LIBFs can be scaled up to store large amounts of energy. This makes them a good choice for applications such as grid energy storage.
Low maintenance: LIBFs require very little maintenance. This makes them a good choice for applications where maintenance is difficult or expensive.
However, LIBFs also have some disadvantages, including:
High cost: LIBFs are more expensive than other types of flow batteries.
Toxic materials: The electrolyte in a LIBF contains toxic materials, which can be a safety hazard.
Slow charging: LIBFs have a slow charging speed, which can be a limitation for some applications.
Overall, LIBFs are a promising technology for energy storage. They offer a good balance of performance, cost, and safety. However, some challenges still need to be addressed before they can be commercially viable. Lithium Silicon Battery :A lithium-silicon battery is a type of lithium-ion battery that uses silicon as the anode material. Silicon has a much higher theoretical specific capacity than graphite, lithium-ion batteries’ most common anode material. Lithium silicon batteries can store more energy per unit weight or volume.However, silicon also has some drawbacks. It is a very reactive material that can swell and shrink as it is cycled, damaging the battery. Researchers are developing new silicon anode materials and battery designs to overcome these challenges.Here are some of the advantages of lithium silicon batteries:
High energy density: Lithium silicon batteries have the potential to be much more energy-dense than traditional lithium-ion batteries. This means they could store more energy per unit weight or volume, benefiting applications such as electric vehicles and drones.
Low cost: Silicon is a relatively abundant element, which could make lithium silicon batteries more affordable than other types of batteries.
Environmentally friendly: Lithium silicon batteries do not use toxic materials, making them a more environmentally friendly option than other types of batteries.
Here are some of the challenges of lithium silicon batteries:
Reactivity of silicon: Silicon is a very reactive material, and it can swell and shrink as it is cycled, which can damage the battery.
Cycle life: Lithium silicon batteries have a relatively short cycle life, so they can only be recharged a few times before degrade.
Poor conductivity of silicon: Silicon is a relatively poor conductor of electricity, making it difficult to achieve a high power output.
Overall, lithium silicon batteries have the potential to be a breakthrough in the battery industry. However, some challenges still need to be addressed before they can be commercially viable.Thin Film Lithium Battery :A thin-film lithium battery is a type of battery that uses thin films of materials to make the electrodes and electrolytes. This makes the battery much thinner and lighter than traditional lithium-ion batteries.Thin-film lithium batteries have several advantages over traditional lithium-ion batteries, including:
Thinness and lightness: Thin-film lithium batteries are much thinner and lighter than traditional lithium-ion batteries. This makes them a good choice for applications where weight and space are important, such as wearable devices and drones.
Flexibility: Thin-film lithium batteries can be made in flexible sheets, making them a good choice for applications where the battery must conform to a specific shape, such as wearable devices and flexible electronics.
Scalability: Thin-film lithium batteries can be scaled up to produce large batteries for applications such as grid energy storage.
However, thin-film lithium batteries also have some challenges that need to be addressed before they can be commercially viable, including:
Low energy density: Thin-film lithium batteries have a lower energy density than traditional lithium-ion batteries. This means they can store less energy per unit volume.
High cost: Thin-film lithium batteries are more expensive to manufacture than traditional lithium-ion batteries.
Low cycle life: Thin-film lithium batteries have a lower cycle life than traditional lithium-ion batteries. This means they can only be recharged a limited number of times before they start to degrade.
Overall, thin-film lithium batteries are a promising technology for energy storage. They offer many advantages over traditional lithium-ion batteries, but they also have some challenges that must be addressed before they can be commercially viable.Here are some of the applications where thin-film lithium batteries are being considered:
Wearable devices
Drones
Flexible electronics
Grid energy storage
Medical devices
Military applications
Lithium Hybrid Organic batteryA lithium hybrid organic battery (LHO battery) is a type of rechargeable battery that combines lithium-ion batteries with organic polymers. Organic polymers are used as the electrolyte, and they can improve the battery’s performance in several ways.LHO batteries have several advantages over traditional lithium-ion batteries, including:
High energy density: LHO batteries have a higher energy density than traditional lithium-ion batteries. This means they can store more energy per unit weight or volume.
Long cycle life: LHO batteries have a longer life than traditional lithium-ion batteries. This means they can be recharged many times before they degrade.
Safety: LHO batteries are safer than traditional lithium-ion batteries. This is because the organic polymers are less flammable than the liquid electrolytes used in traditional lithium-ion batteries.
However, LHO batteries also have some challenges that need to be addressed before they can be commercially viable, including:
High cost: LHO batteries are more expensive to manufacture than traditional lithium-ion batteries.
Low power density: LHO batteries have a lower power density than traditional lithium-ion batteries. This means they cannot output as much power as traditional lithium-ion batteries.
Low conductivity: The organic polymers used in LHO batteries are not as conductive as the liquid electrolytes used in traditional lithium-ion batteries. This can limit the performance of the battery.
Overall, LHO batteries are a promising technology for energy storage. They offer several advantages over traditional lithium-ion batteries, but they also have some challenges that must be addressed before they can be commercially viable.Lithium tetrachloroaluminate Battery (LiAlCl4) :It is a white, hygroscopic, crystalline solid. It is a salt of lithium and aluminium chloride. It is soluble in water and ethanol.Lithium tetrachloroaluminate is a strong Lewis acid and can react with water to release hydrogen chloride gas. It is also a strong oxidizing agent and can react with organic materials to produce fire or explosion.Lithium tetrachloroaluminate is used in a variety of applications, including:
As a catalyst in organic synthesis
As a reagent in analytical chemistry
As a precursor to other lithium compounds
In the production of solar cells
In the production of batteries
Lithium tetrachloroaluminate is a hazardous material and should be handled with care. It should be stored in a cool, dry place and kept away from water and organic materials.Here are some of the safety precautions that should be taken when handling lithium tetrachloroaluminate:
Wear gloves, goggles, and a lab coat when handling lithium tetrachloroaluminate.
Avoid contact with water and organic materials.
Store lithium tetrachloroaluminate in a cool, dry place.
Dispose of lithium tetrachloroaluminate properly.
If exposed to lithium tetrachloroaluminate, immediately flush the affected area with water for at least 15 minutes and seek medical attention.Lithium-ion Ultracapacitor Battery :A lithium-ion capacitor (LIC) is a hybrid type of capacitor classified as a supercapacitor. It is called a hybrid because the anode is the same as those used in lithium-ion batteries, and the cathode is the same as those used in supercapacitors. Activated carbon is typically used as the cathode.LICs have a higher energy density than conventional supercapacitors but a lower energy density than lithium-ion batteries. They also have a higher power density than lithium-ion batteries but a lower power density than conventional supercapacitors.LICs have many advantages over lithium-ion batteries, including:
Longer cycle life (up to 100,000 cycles)
Faster charge and discharge times
Higher tolerance to high temperatures
Lower self-discharge rate
Lithium ultracapacitor battery cellThe Solid State Lithium Battery :A solid-state battery is a type of rechargeable battery that uses a solid electrolyte instead of the liquid electrolyte found in traditional lithium-ion batteries. Solid electrolytes offer several advantages over liquid electrolytes, including:
Higher energy density: Solid electrolytes can store more energy in a given volume than liquid electrolytes. This is because solid electrolytes are less compressible than liquid electrolytes.
Better safety: Solid electrolytes are less flammable than liquid electrolytes. This is because solid electrolytes do not vaporize as easily as liquid electrolytes.
Faster charging: Solid electrolytes can conduct ions faster than liquid electrolytes. This means that solid-state batteries can be charged faster than traditional lithium-ion batteries.
However, solid-state batteries also have some disadvantages, including:
Higher cost: Solid electrolytes are more expensive to manufacture than liquid electrolytes.
Less developed technology: Solid-state batteries are still a relatively new technology, and much research is being done to improve their performance and safety.
Despite the challenges, solid-state batteries can potentially revolutionize the battery industry. They could power electric vehicles, laptops, and other devices with longer battery life and better safety.Here are some of the potential benefits of solid-state batteries:
Longer battery life: Solid-state batteries can have a longer life than traditional lithium-ion batteries because they can store more energy in a given volume.
Faster charging: Solid-state batteries can be charged faster than traditional lithium-ion batteries because they can conduct ions faster.
Better safety: Solid-state batteries are less flammable than traditional lithium-ion batteries because they do not vaporize as easily.
Solid-state batteries are more durable than traditional lithium-ion batteries because they are less susceptible to heat and vibration damage.
Solid-state batteries are still a developing technology, but they have the potential to revolutionize the battery industry. They could power electric vehicles, laptops, and other devices with longer battery life, faster charging, and better safety.Some companies that are developing solid-state batteries include:
QuantumScape: QuantumScape is a California-based company developing solid-state batteries for electric vehicles.
Solid Power: Solid Power is a Colorado-based company developing solid-state batteries for electric vehicles and other applications.
Samsung: Samsung is a South Korean company developing solid-state batteries for laptops and other portable electronic devices.
Toyota: Toyota is a Japanese company developing solid-state batteries for electric vehicles.
The best type of lithium cell for a particular application will depend on the specific requirements of that application. For example, if the application requires a high energy density, then a LiCoO2 cell may be the best choice. If the application requires a long cycle life and safety point of view, then a LiFePO4 cell may be the better option.
Nominal voltage: The nominal voltage is the average voltage of the cell when it is fully charged and discharged. For most lithium-ion cells, the nominal voltage is 3.2 or 3.7 volts, depending upon the lithium cell chemistry.
Capacity: The capacity is the amount of energy the cell can store. It is measured in milliampere-hours (mAh) or Ampere-hours (Ah). It’s in mAh for smaller cells, and bigger lithium cells, it’s in Ah called Ampere Hour.
Energy density: The energy density is the amount of energy the cell can store per unit mass or volume. It is measured in watt-hours. This energy can be converted into simple wattage terms by multiplying the cell voltage with the cell capacity. say 3.2 volts multiplied by 100 Ah if the cell has 100 Ah, which comes to 320 Watt capacity.
prismatic cell Lithium pack
Power density: The power density is the amount of power the cell can deliver per unit mass or volume. It is measured in watts per kilogram (W/kg) or per litre (W/L). So if the 100 Ah cell is 3.2 Volts, then what is the weight of the 320 Watt cell? And that can be converted into the per-watt weight and cell size.
Charge rate: The charge and discharge rate is the rate at which the cell can be charged and discharged. These two are very important to understand as the manufacturer specifies the maximum charge rate in terms of the total capacity of the lithium battery cell. Say a 100 Ah cell has a 0.5 charge rate, so one has to understand that the maximum charge we can give is 50% of the capacity of a lithium cell so that we can charge the cell with a 50 Amp charging current.
Discharge Rate: This is defined as the nominal or maximum discharge current we can discharge from the Lithium cell, so it’s defined in terms of 1C or 0.5C, 2C or 3C, which means we can discharge the maximum cell current in that capacity only, say 0.5C means we can discharge 50 Amps in one hour from the 100 Ah capacity lithium cell or 1C means 100 Amp we can discharge in 1 hour and so on. This is very important to understand while reading the specifications of the lithium cell.
Internal resistance: The internal resistance is the cell’s resistance to the current flow. It is measured in ohms. So, generally, internal resistance plays an important role while grouping the cells to make the lithium cell pack. When we charge or discharge them in a battery pack, we can get the cell equalization in voltage under check. If the two cells have different internal resistance, the battery will give less life, and one of the cells might get overcharged over time. The cell IR is generally in milli Ohms, and the IR will increase from the time of cell cycle life. So, we measure two types of IR: the Lithium cell IR value and the Lithium cell pack IR value, which indicates the health of the Lithium cell and Lithium battery pack. As the battery pack goes old after use of maybe three years, one can see the increase in IR value of the total cell pack, which will increase in milli ohm, indicating the battery pack life left.
IR testing
Self-discharge rate: The self-discharge rate is when the cell is not in use, neither it’s charged nor discharged. Also, the cell is losing some charge, called the self-discharge rate. Lowering the self-discharge improves the battery cell life as every battery cell has its self-discharge rate at which it will be discharged when not in use. When the lithium cell is made and despatched, reaching the destination takes a lot of time. Then, the cell is stored at a particular temperature, which is generally supposed to be 25 degrees Celsius. So, a better life can be expected by lowering the self-discharge rate of any lithium cell. Every manufacturer specifies the self-discharge rate at a standard 25 degrees Celsius.
Operating temperature range: The operating temperature range is the range of temperatures at which the cell can operate without damage, and the life can increase or decrease if the temperature varies. The cell’s capacity will also vary depending on the temperature range specified by the manufacturer.https://suvastika.com/the-lithium-battery-is-going-to-change-the-energy-storage-solutions/
These are just some of the important parameters of a lithium cell. Other parameters may be important depending on the specific application of the cell.
A solar inverter is a device that converts the direct current (DC) electricity generated by solar panels into alternating current (AC) electricity, which is the type of electricity used by most homes and businesses.https://en.wikipedia.org/wiki/Solar_inverter
The Inverter is a critical component of a solar power system, as it allows the solar panels to generate electricity that can be used to power your home or business.
Generate DC electricity without an inverter, which can be used as DC power through the Solar charge controller to run the DC appliances. In the DC solar System, no Inverter is used.
There are different types of Solar Inverters having different applications to use this Solar Inverter:
Solar On Grid Inverter: Grid-tied Solar Systems generate electricity for your home or business and route the excess power into the electric utility grid for compensation from the utility company having the solar panels and Grid-tied Inverter. These inverters work on the principle of Grid synchronization and feed the electricity made into the internal Grid of the home office or wherever they are installed. If the power generated by the solar Inverter is more than the consumption of the internal Grid, then this power is exported to the external Grid. The Net meter or Bi-directional meter is required rather than the normal meter to calculate the power exported through the Solar Inverter. If the Grid power is unavailable, this Solar System does not function. Hence, the system has an anti-islanding feature, which stops the power from feeding into the Grid. This is a disadvantage in case of a power failure. No electricity can be made to run the power in home, office or any factory wherever these systems are installed.
Off-grid solar Inverter where the utility power is unavailable, the Solar System needs an independent system comprising Solar panels, inverters and batteries to store the solar power and use it during the day and at night through the storage system as there is no grid available in those areas. When Grid is not available, this system is called a stand-alone system. It has an Inverter and a Solar Charge controller, which stores the solar power in the battery, and the Inverter runs the load by drawing power through the Solar panels and the battery. These stand-alone Inverters are used where there is no grid at all.https://suvastika.com/what-is-solar-off-grid-system/
Off-grid solar PV system
Solar Hybrid Off Grid Inverter/Solar Hybrid PCU: This system has utility power available. The solar power is stored in the battery through the Grid power as well through the solar power, and the grid power is bypassed when the power is available. Solar power is utilized to run the power when the battery is completely charged or when the grid power fails, then the stored power in the battery is utilized. This Solar system is called a Hybrid Solar PCU as well. Hybrid Solar Power Conditioner.https://suvastika.com/what-is-hybrid-solar-pcu-solar-hybrid-off-grid-system/
Hybrid Solar On-Grid and Off-Grid Inverter:This is the system that combines the On-grid and off-grid features where Solar PV power generated can be fed into the Grid and can be stored in the battery as well to provide power when solar PV power is not available or when there is a power cut in the Grid than the stored power in the battery can be used. These are most popular these days as they are cost-effective. In the future, solar power storage will be an expensive concept, so in this system, one can feed the solar power into the Grid and use a smaller or bigger battery system as per the requirement and use the power in case of grid failure or in case the peak power in the evening time the storage system can power the house etc.https://suvastika.com/hybrid-solar-system-the-best-of-both-on-grid-and-off-grid/
Here are some of the factors to consider when choosing a solar inverter:
The size of your solar power system: The size of your solar power system will determine the capacity of the Inverter you need.
The type of solar panels you are using: The type of solar panels you are using will affect the output voltage and current of your solar power system, which will also affect the size of the Inverter you need.
The location of your solar power system: The location of your solar power system will affect the amount of sunlight it receives and the amount of electricity it generates.
Your budget: Solar inverters can be of different sizes and types, so that the cost will depend on the type of Inverter and sizing.
It is important to consult with a solar installer to help you choose the right solar Inverter for your needs.
Can we install the Lithium battery with the existing Inverters in the market? The normal inverters installed in the market have different chargers for charging Lead-acid or Tubular batteries. These built-in chargers in Inverter/UPS can damage the Lithium battery, and lithium battery life may be lesser than Tubular battery. Can we install a Lithium battery with existing Inverters?https://techenclave.com/threads/lithium-iron-phosphate-lifepo4-battery-for-inverter-solar-in-india.202904/
20 KVA Lithium battery bank with ESS
As the charging technique for charging the Lead Acid battery is quite different from the Lithium battery, the Lithium battery will not be able to give the life that it’s designed for.
Also, another challenge is that the Lithium battery has built-in BMS, which remains on when the battery of smaller sizes of 12 V and 24 Volts are made, continuously discharging the battery. This is another challenge, as keeping the battery in the store for more than one or two months causes the battery to deep discharge.
Even when the low battery happens in the Inverter, if we don’t get power back for 2 to 3 days, the chances of the lithium battery going into Deep discharge are very high.
We have designed our Lithium battery BMS to go into sleep mode if the low battery happens to save the BMS power so that BMS consumption does not drain the Lithium battery.
So we have designed the Lithium battery bank with a BMS, a heavy-duty BMS controlled through the MCB and fan to keep that battery cool. There is a buzzer and LED indications to show the status of the Lithium battery, and this is a patented technology by which this Lithium Life PO4-based battery can be installed with any kind of Inverters available in the market. The charging inside the BMS is regulated according to the Lithium battery requirement and can give a life of 10 years.https://suvastika.com/benefits-of-lithium-battery-in-inverter-ups/
The Lithium battery weight is 8 Kgs compared to 62 Kgs of 150 Ah tubular battery, which requires two people to carry the battery. The transportation of tubular batteries is a big headache, especially when they are being installed or replaced.
It would be best to have a trolley to keep the battery, which always gets damaged over time due to the heavy weight of batteries and inverters. This Lithium battery comes in a matching metal box, which can be installed with the existing Inverter and does not need any trolley.
The existing Inverter with a Tubular battery emits Lead fumes, which is dangerous for the whole family, especially kids and older people. This Lithium battery is completely safe as no such fumes emit from the batteries as they are completely sealed.
It doesn’t require space, and no water refilling or maintenance is required.
The existing Inverters can easily charge the Lithium battery in 4 to 5 hours compared to the 15 hours to charge the Tubular battery.
1. So the result is that Su-vastika designs the Lithium battery with BMS to run with any local Inverter/UPS in 12/24/48 Volt configuration.
2. The lithium LifePO4 battery is a very lightweight and good-looking Product in a small package. It has all the electronic controls with an LED display fan and MCB, which looks like a sophisticated Electronic product.
3. This is a pollution-free and no-maintenance lithium battery pack.
4. Can be charged in 4 to 5 hours compared to Tubular Lead Acid battery, which takes 15 hours to charge completely.
So, in this article, we have clearly described that the new Lithium battery designed by Su-vastika can be installed with any brand or type of Inverters/UPS.
The BMS for lithium inverter/UPS or Battery Energy Storage systems is a new concept; we will discuss this topic in this article.
The importance of BMS in Electric vehicles and inverters/UPS or storage solutions is a very different need comparatively. The Inverter/UPS has a built-in charger and discharger, so the limits of charging and discharging are already known. The major function of the Battery Management System is to control the charging voltage and charging current limits and the discharging current and low voltage battery cutoff. Fast charging may not be an important parameter in inverter/UPS and storage solutions. In solar storage solutions, the charging can be done in 3 to 4 hours, which is much faster than the Tubular lead Acid battery, which takes a minimum of 12 hours to charge. Lithium Cell balancing is a major challenge in most Battery Management Systems as it’s either done with Active or passive equalization.https://en.wikipedia.org/wiki/Battery_balancing
The major challenge the Lithium battery faces is the equalization of cells in a battery pack, as each time we charge the battery pack and discharge the battery pack, there is an equalization imbalance. So, at Su-vastika, we worked for three years to understand this phenomenon and filed three technology patents by which we have learnt the mechanism to control the equalization of lithium cells through the charging mechanism only.
As we charge the lithium pack each time, we try to charge the battery pack at a SOC level where each time we make the cells non-equalize and then try to equalize them continuously, which might decrease the cell life and the BMS power is also wasted and the maintenance of equalization keep increasing over the period. As the battery cells’ IR values will differ over time, the BMS need to equalize the cells more and more, for which BMS need to be designed accordingly. But if we keep the cell voltages to the level where there is no equalization required and we get 93 to 95% output wattage of the cell, then the life of cells and battery pack will increase comparatively. So we did a lot of experiments on cells and realized that if we charge the cells to a particular voltage with a special method of charging, then the cells are charged up to the 93 to 95% level rather than overcharging them by charging the cells according to the limits provided by the cell manufacturer the cells do not get equalization problem at all. We can achieve the equalization between 1mv to 2mv level, which is impossible to get through the BMS that constantly tries to equalize the cell balancing. When trying to balance the cells through an equalization process, the difference between each cell is difficult to maintain. The equalization process of cells is tedious, and the energy wasted is drawn from the battery bank only.
We can achieve three things by this method: reducing heat while charging. In the last stage, charging heat is the main reason for cell destruction.
The cell can never be overcharged as most lithium pack manufacturers prefer to keep the battery charged to 90 and 95% of its capacity.
The Low battery cut is also kept at a higher level so that the cell is not discharged beyond a level that increases its life. The Lithium cell of most types has hardly any energy to give beyond a particular voltage, which has been a well-established fact.
We do not try to charge the battery by 50% of its capacity, which the cell manufacturer recommends in its specification sheet, which can further damage it, as the charging has to be in at least three to 4 hours. Once the heat is minimized inside the battery, life is guaranteed.
The cooling period is provided during the charging process as per different types of lithium chemistry cells.
The absorption stage is another important factor we have given importance to while charging the battery. The algorithm adopted for charging the different types of Lithium cells plays a major role in maintaining the equalization and controlling the heat inside the battery. We cut off charging or discharging to the battery pack in case heat in any cell increases beyond the specification provided by the cell manufacturer.
Most of the Lithium cell manufacturers are giving extra wattage if we charge the cell according to the voltages prescribed by them, which can lead to lower life expectancy from the cell as the competition between the cell manufacturers is increasing day by day, everyone tries to give maximum power in the same sizing of lithium cell which can be lethal for the life of the battery cell if charge the cell to the level to get the extra wattage from that particular cell.
Maintaining equalization is the most important in any Battery Management system, which any user does not give importance to as their ultimate goal is to fast charge and discharge the battery to get the maximum wattage from the lithium battery pack. The lithium battery fails because of overcharging one or more cells in the battery pack, which is created by the imbalance during the charging process only.
We have designed our Life cycle tester for testing the battery pack life, and we have established that our battery pack will last more than 2,000 cycles for cylindrical LifePo4 cells, as the manufacturer claims in the data sheet on the full load discharge capacity. We still use the same cell pack for the charge-discharge cycle and have completed more than 2100 cycles. We believe it to last more than 20 to 30% of the life cycle compared to the datasheet specification and can get almost 95% capacity of the lithium cell by this method.https://suvastika.com/lithium-battery-bank-life-cycle-tester-with-graphs-and-printer/
We are doing these tests on the cylindrical and Prismatic cells, and very soon, we will publish our papers in the technical journals once we have established the results on different types of lithium cells.
Maximize the Tubular Lead Acid battery life in UPS/Inverter by having an ATC Feature for charging Lead Acid batteries.
ATC stands for Automatic Temperature Compensation. It is a feature that is found in. Su-vastika Pure Sinewave UPS with ATC allows the UPS to adjust its charging voltage based on the ambient temperature automatically. This helps to ensure that the battery is not overcharged or undercharged. It prevents the battery from overheating, extending its lifespan to a 1-year minimum if you top up the battery in time.https://suvastika.com/how-to-charge-tubular-battery-in-inverter-ups/
Another important parameter is Four-stage charging: Bulk, Absorption, Float and trickle stage charging, and each stage has to be controlled by the software accurately.
Regular water is topped with distilled water, which is sealed and not contaminated.
The plugs on the top of the battery need cleaning occasionally with hot water.
Minimize the load on the Tubular battery when the power cut happens, as the tubular battery is designed for C20 capacity.
Keep the battery in a well-ventilated place and out of the reach of kids.
Here is how ATC works in Su-vastika Pure Sinewave UPS with ATC:
1. The Inverter/UPS has a sensor outside the UPS Chasis that measures the ambient temperature.
2. The Inverter/UPS microcontroller has the algorithm written, which calculates the correct charging voltage per ambient temperature.
3. The UPS then adjusts its charging voltage as per the algorithm written in the algorithm and keeps comparing continuously and correcting it.
4. ATC works by monitoring the battery’s external temperature and dynamically changing the charging voltage, which helps the battery to reduce the temperature inside the battery as the higher the charging voltage, the battery charging time will increase and lower the charging voltage, the time to charge the battery will reduce which is important to control the heating inside the battery.
Overall, Inverter/UPS with ATC are better than UPS without ATC. They extend the battery lifespan, improve the UPS’s performance, reduce electricity bills, reduce maintenance costs, and provide peace of mind knowing that the battery is correctly charged.
Here are some of the benefits of using a UPS with ATC:
Increases Backup time in cold weather: This is one of the biggest features of ATC, as the fixed voltage provided for the charging of the battery doesn’t let the battery charge properly when the temperature drops to less than 10 degrees, which reduces the backup time of the lead acid battery which is the major concern of the user. ATC feature increases the charging voltage as per the temperature outside the battery as the cold weather needs more charging time for the battery to get fully charged as the water and acid contract inside the battery.
• Extended battery life: ATC can help extend your battery’s life by up to 30%. This is because ATC prevents the battery from overcharging, one of the leading causes of battery failure.
• Reduced electricity bills: ATC can help reduce your electricity bills by preventing overcharging. The battery will not waste energy by charging beyond its capacity, changing the voltage according to the temperature outside the battery. When the temperature exceeds 40 degrees, it reduces the charging time so that the battery is not heated, and the power bill is saved at higher temperatures.
• Reliable power backup: If the battery is cleaned and power drawn from the battery is 20% of its capacity, then the life of the battery increases beyond expectation. So, for example, if the 150 Ah battery is there and we use a 200 Watt load on this battery, then this battery will last more than five years provided we maintain it properly.
• Reduced maintenance costs: ATC can help prevent the battery from overheating by monitoring the battery’s temperature and adjusting the charging voltage accordingly. Which can lead to premature degradation and no need for water filling monthly.
• Performance: Without the ATC feature, the UPS may not be able to supply as much power to the battery, which can lead to overcharging or undercharging and need more water topping, and overall performance is low compared to the ATC-based UPS/Inverter.
• High maintenance costs: When the water topping is required, then the Distilled water, which is not contaminated, needs to be used. Filling the water up to 90% in the battery is tedious; generally, the water level is overfilled. Once the charging starts, the acid water comes out, and the floor is permanently damaged, which is the major problem faced by most of the Tubular Lead Acid battery users