Currently, there are many cathode materials for lithium batteries in Wuxi on the market, but the main one is lithium iron phosphate. Different cathode materials are used:

LiCoO2        3.7V        140 mAh/g

Li2Mn2O4      4.0 V       100 mAh/g

LiFePO4       3.3 V       100 mAh/g

Li2FePO4F     3.6 V       115 mAh/g

Positive electrode reaction: During discharge, lithium ions intercalate; during charge, lithium ions deintercalate. During charging: LiFePO4 → Li1-xFePO4 + xLi+ + xe-. During discharging: Li1-xFePO4 + xLi+ + xe- → LiFePO4.

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