The charge and discharge cycle of lithium-ion battery pack is the process of lithium ions separating and moving back and forth between the positive and negative electrode data through the electrolyte. During the cycle of lithium ion battery pack, there are many side reactions in addition to the REDOX reactions of the positive and negative electrodes. If the secondary response of lithium-ion batteries can be reduced to a low level, so that lithium ions through the electrolyte can always successfully reciprocate between the positive and negative electrode data, the cycle life of lithium-ion batteries can be extended.

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