The charging and discharging cycles of rechargeable batteries can reach thousands to tens of thousands, making them more cost-effective compared to dry batteries. The self discharge of a secondary battery, also known as charge retention capacity, as the name suggests, is the ability of the battery to maintain the stored energy under certain environmental conditions in an open circuit state. Generally speaking, self discharge is mainly influenced by processing technology, raw materials, and storage conditions. Self discharge is one of the main parameters for measuring electrochemical performance.

　　What are the types of secondary batteries?

　　Alkaline zinc manganese batteries, nickel cadmium rechargeable batteries, nickel hydrogen rechargeable batteries, lithium-ion batteries, lead-acid batteries, solar cells. Lead acid batteries can be divided into: open type lead-acid batteries and fully enclosed lead-acid batteries. Nickel cadmium chemistry and secondary batteries

　　Any battery is composed of four basic components, which are two electrodes, an electrolyte, a separator, and a casing made of different materials.

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