Lithium metal battery: Lithium metal battery generally uses manganese dioxide as the cathode material, metal lithium or its alloy metal as the cathode material, and uses non-aqueous electrolyte solution.

　　Lithium ion battery: Lithium ion battery generally uses lithium alloy metal oxide as cathode material, graphite as cathode material and non-aqueous electrolyte.

　　Although the energy density of lithium metal battery is high, theoretically it can reach 3860W/kg. However, due to its unstable nature and inability to charge, it cannot be used as a power battery for repeated use. The lithium-ion battery has been developed as a main power battery due to its ability to recharge repeatedly. However, because of the different elements, the performance of the cathode materials is very different in all aspects, which leads to more disputes on the cathode material route in the industry.

　　Usually, the power batteries we talk about most are lithium iron phosphate batteries, lithium manganate batteries, lithium cobalate batteries and ternary lithium batteries (ternary nickel cobalt manganese)

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