1. Lithium manganese

　　Advantages: Low price; Good low-temperature performance, discharge efficiency above 90% at minus 20 ℃; Good safety performance.

　　Disadvantages: Poor high-temperature performance; Low cycle life (usually around 300 to 400 cycles of normal service life); Low specific capacity (112); Poor rate discharge (such as fast uphill starting of a car, which has a significant impact on this type of battery).

　　2. Ternary

　　Advantages: The price is the most expensive among the three materials; Large capacity (150. Can save volume); Good cycle life (600 to 700 cycles); Good discharge rate.

　　Disadvantages: The safety performance is the worst among the three (especially with steel shells); At present, the battery industry in China has not yet mastered this material well and it is not widely used.

　　3. Iron and lithium

　　Advantages: In terms of price; Medium capacity (130); Long cycle life (approximately 1500 cycles); Good high-temperature performance.

　　Disadvantages: The price is not cheap; Poor low-temperature performance; Only in electric vehicles can its good performance be fully demonstrated.

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