Abstract
In order to characterize the influence of different factors on battery capacity, it is necessary to analyze the mechanism of different aging factors and overcharge and over discharge behavior. By introducing the lithium intercalation rate-electrode voltage constraint, the side reaction mechanism in the charging and discharging process of different factors was analyzed, and the rules of battery capacity change caused by different factors were obtained. Design aging tests to verify theoretical analysis. In conclusion, the loss of lithium inventory and the loss of active Material lead to a decrease in battery capacity. The overcharge behavior leads to an increase in battery capacity and the over-discharge behavior leads to a decrease.
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