LiFePO4 Battery Construction
Cells
Li-ion phosphate, or LiFePO4, batteries use lithium iron phosphate as the cathode and carbon as the anode, with an organic solvent electrolyte containing lithium salts. These batteries offer a higher discharge rate, heat tolerance, and safety compared to other lithium-ion types. LiFePO4 cells share the basic lithium-ion cell construction but stand out due to their stable and safe chemistry. They excel in applications demanding high safety standards, like electric vehicles and energy storage, offering longer cycle life and lower self-discharge rates.
Packs
Our LiFePO4 custom packs provide flexibility to meet your specific needs. We maintain a stock of 18500 cells, which can be configured in any way you require, including parallel setups to boost capacity. These packs are meticulously crafted using pure nickel tabs, available in double or treble tagging. You can select multi-strand silicone leads at your desired length, and we include a balance lead to ensure lasting cell balance. Additionally, you have the choice to add your preferred connector, all neatly wrapped in heat shrink for added protection.
LiFePO4 Battery Features
High Cycle Life
LiFePO4 batteries have a long cycle life, typically lasting around 2000-5000 cycles, meaning they can be charged and discharged many times before needing replacement.
Safety
LiFePO4 batteries are one of the safest lithium-ion battery types as they have a stable structure and non-flammable electrolyte, making them less likely pose a fire hazard.
Low-Energy Density
LiFePO4 batteries have a lower energy density than other lithium-ion batteries, which can be advantageous when lower energy density is allowed, such as power storage applications.
Wide Temperature Range
LiFePO4 batteries can operate in a wide temperature range, from -20°C to 60°C, making them suitable for use in harsh environments.
Environmentally Friendly
LiFePO4 batteries are eco-friendly compared to other lithium-ion batteries as they don't have toxic heavy metals like lead, cadmium, or mercury.
Possible Applications
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Energy Storage Systems
Uninterruptible power supply (UPS) systems, portable power banks and chargers and residential solar power battery storage.
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Renewable Energy Systems
Solar and wind energy storage systems, microgrid and off-grid storage systems, hybrid power systems for remote locations.
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Telecommunications
Base stations, cellular towers, remote telemetry units, solar/wind hybrid power systems and UPS systems for telecom equipment.
Lithium-Ion Phosphate
LiFePO4 batteries are most commonly used in applications that prioritise safety, reliability, and long cycle life over high energy density. They are popular for their long lifespan and eco-friendly design. They are a reliable and safe choice for various applications, including solar power systems, EVs, and off-grid energy storage. LiFePO4 batteries offer a sustainable and cost-effective power solution for the future.
Frequently Asked Questions
LiFePO4 batteries are generally considered safe as they are more stable and less prone to thermal runaway compared to other Li-Ion chemistries. However, as with all batteries, there are still potential safety hazards if they are not handled properly or if they are damaged. It is important to follow the manufacturer's guidelines for safe use, storage, and charging of LiFePO4 batteries.
LiFePO4 batteries have a longer lifespan than most other rechargeable batteries, with a typical lifespan of 2,000 to 5,000 charge cycles or 10-15 years depending on usage and storage conditions.
To extend the lifespan of your LiFePO4 battery, you can follow these tips:
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Charge the battery regularly but avoid overcharging it.
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Avoid storing the battery at high temperatures or in direct sunlight.
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Use a compatible charger that is specifically designed for LiFePO4 batteries.
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Avoid deep discharging the battery, and try to keep the state of charge between 20% and 80%.
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Store the battery in a cool, dry place when not in use.
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Avoid exposing the battery to extreme temperatures or humidity.
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Use the battery in accordance with the manufacturer's instructions and recommended guidelines.
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LiFePO4 batteries should be stored and transported in a cool and dry place, away from direct sunlight, moisture, and sources of heat or fire. They should also be kept out of reach of children and pets. It is recommended to store them at a 50% state of charge, as this helps to reduce the risk of damage from over-discharge or overcharge. Additionally, they should be transported in a protective case or bag that is designed for Li-Ion batteries to prevent any potential short-circuiting or damage during transit.
LiFePO4 batteries are charged using a charger specifically designed for them, which regulates the charging process to prevent overcharging and overheating. The charging process typically involves a constant current charge until the battery reaches a certain voltage, followed by a constant voltage charge until the battery is fully charged.
It's important to use a charger with the correct voltage and current rating for your LiFePO4 battery to ensure safe and efficient charging.
If a LiFePO4 battery gets damaged, it is recommended to handle it with extreme care as the chemicals inside can be hazardous. If the battery is punctured, swollen, or shows any signs of damage, it should not be used or charged. The damaged battery should be stored in a fireproof container in a cool and dry place, and then taken to a specialised recycling facility for proper disposal.
LiFePO4 batteries should be disposed of properly at a designated recycling facility or program. Do not dispose of them with regular household waste. Many battery manufacturers and retailers have recycling programs or provide information on where to recycle their batteries. Contact your local recycling centre or waste management facility to find out how to properly dispose of LiFePO4 batteries in your area.
We also offer a battery takeback scheme as part of our battery recycling initiative with BatteryBack and WeeeCare.