The LiFePO4 Battery 101 is the ideal starting point for anyone considering a DIY and building quality Li-Ion battery project. Learn the basics of LiFePO4 batteries and get tips for incorporating this abundant clean energy source into your home. Contact online >>
The LiFePO4 Battery 101 is the ideal starting point for anyone considering a DIY and building quality Li-Ion battery project. Learn the basics of LiFePO4 batteries and get tips for incorporating this abundant clean energy source into your home.
Lithium iron phosphate (LiFePO4 or LFP) is the safest of the mainstream lithium-ion (Li-Ion) rechargeable battery types. Compared to more traditional cobalt-based lithium-ion batteries, they have the advantage of increased power output, faster charging, lighter weight, and longer life. The battery also has better safety features and will not explode under extreme conditions.
LiFePO4 batteries use LiFePO4 as the positive electrode and graphite as the negative electrode. The nominal voltage of the battery is 3.2V, it is worth mentioning that the nominal voltage of the lead-acid battery is 2.1V, and in many cases, the LiFePO4 battery is a perfect replacement for the lead-acid battery.
There are currently three common shapes of LiFePO4 batteries: cylindrical, prismatic, and pouch. Different shapes of batteries will have a certain impact on performance. At present, the most suitable battery DIY enthusiasts are the prismatic LiFePO4 batteries, which are very suitable for both performance and operational difficulty.
The battery management system (BMS) is a very important battery protection system. By preventing battery overcharge/overdischarge/overcurrent/overheating, it can cut off the power in time when the battery is in some dangerous situation, and at the same time, it can provide a partial balancing function to help the LiFePO4 battery run longer.
Balancer is another important device in the LiFePO4 battery pack. The balancer can maintain the charge balance of each cell in the battery pack for a long time, ensuring that the battery pack can be used normally for a longer period of time.
Busbars are connection accessories for connecting different cells. The connection between each LiFePO4 cell should use suitable busbars, which can maximize the performance of the battery. Generally, when referring to busbars it includes washers/nuts/studs.
One is series connection (S). The way of connecting the positive and negative electrodes of two different cells is called series connection. As a result, the voltage of the battery pack will increase while the capacity remains the same.
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