How many types of lithium batteries can be classified?

　　Battery positive electrode materials: lithium iron phosphate (LFP) battery, lithium cobalt oxide (LCO) battery, lithium manganese oxide (LMO) battery, (binary battery: lithium nickel manganese oxide lithium nickel cobalt oxide) battery, (ternary battery: lithium nickel cobalt manganese oxide (NCM) battery, lithium nickel cobalt aluminate battery (NCA) battery)

　　Negative electrode materials: lithium titanate battery (LTO), graphene battery, nano carbon fiber battery.

　　In the market, the key to the concept of graphene is the use of graphene based rechargeable batteries, which means adding graphene based materials or coatings to the film in polar TV dramas. The sales market for lithium magnesium based rechargeable batteries will have no foundation.

　　Lifetime of ternary lithium batteries

　　The lifespan of lithium-ion batteries refers to the capacity loss of a rechargeable battery after a period of use, which is 70% of its standard capacity (at room temperature of 25 ℃, standard atmospheric pressure, and discharged at 0.2C), indicating that the lifespan has stopped. The industry generally calculates the cycle life based on the cycle frequency of lithium-ion batteries filled with pendulums. During use, irreversible electrochemical corrosion may occur inside the lithium battery, resulting in a decrease in capacity. For example, the decomposition of lithium manganese oxide batteries, loss of activity of active materials, collapse of positive and negative structures, and a decrease in the total number of insertion and removal of lithium-ion batteries. The experiment indicates that the discharge of more polymer cells will also lead to faster capacity loss. If the discharge current is relatively low, the charging voltage will reach a balanced working voltage, which can release more kinetic energy.

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