Lithium metal batteries: Lithium metal batteries generally use manganese dioxide as the positive electrode material, metal lithium or its alloy metal as the negative electrode material, and use non aqueous electrolyte solutions.

　　Lithium ion batteries: Lithium ion batteries generally use lithium alloy metal oxides as the positive electrode material, graphite as the negative electrode material, and non aqueous electrolytes.

　　Although lithium metal batteries have a high energy density, they can theoretically reach 3860 watts per kilogram. However, due to its unstable nature and inability to charge, it cannot be used as a power battery for repeated use. Lithium ion batteries, due to their ability to charge repeatedly, have been developed as the main power battery. However, due to the combination of different elements, the performance of the cathode materials composed of them varies greatly in various aspects, leading to increased disputes in the industry over the route of cathode materials.

　　The most commonly mentioned power batteries include lithium iron phosphate batteries, lithium manganese phosphate batteries, lithium cobalt phosphate batteries, and ternary lithium phosphate batteries (ternary nickel cobalt manganese).

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