Aiming at the aging problem of soft pack lithium-ion battery in the process of fast charging,a simulation model of lithium-ion battery is established to analyze the effect of different charging rates on battery performance.The results show that when charging with different rates,the change of positive and negative collector potential is proportional to the charging rate.As the charging rate increases,the electrode utilization rate increases,resulting in slightly uneven electrode utilization rate and accelerating the aging of the battery.In addition,seven different reinforcement structures are designed to solve the folding,bending and twisting problems caused by the thin structure of the electrode in the production process of lithium-ion battery.The optimal shape is determined by simulation analysis,which provided a reference for the production of enterprises.
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