The structure and working principle of China lifepo4 battery pack
2022-09-15 08:42
The structure and working principle of China lifepo4 battery pack:
The positive electrode of China lifepo4 battery pack is connected to the positive electrode of the battery by an aluminum foil, and the middle is a polymer separator, which separates the positive electrode from the negative electrode, but the lithium ion Li can pass through but the electron e- cannot pass through, and the right side is composed of carbon (graphite). The negative electrode of the battery is connected to the negative electrode of the battery by copper foil.

Between the upper and lower ends of the battery is the electrolyte of the battery, and China lifepo4 battery pack is sealed and sealed by a metal casing. When a lithium iron phosphate battery is charged, the lithium ions Li in the positive electrode migrate to the negative electrode through the polymer separator; during the discharge process, the lithium ions Li in the negative electrode migrate to the positive electrode through the separator. Lithium-ion batteries are named after lithium ions migrate back and forth during charging and discharging.
main performance. The nominal voltage of China lifepo4 battery pack is 3.2V, the final charge voltage is 3.6V, and the final discharge voltage is 2.0V. Due to the different quality and process of positive and negative electrode materials and electrolyte materials used by various manufacturers, there will be some differences in their performance. For example, the capacity of the battery of the same type (standard battery in the same package) is quite different (10% to 20%).
It should be noted here that China lifepo4 battery pack produced by different factories will have some differences in various performance parameters; in addition, some battery performance is not included, such as battery internal resistance, self-discharge rate, charge and discharge temperature, etc.
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