基于伽马分布的锂离子电池容量退化建模

Capacity Degradation Modeling of Lithium-ion Battery Based on Gamma Distribution

基于温度和充放电倍率对锂离子电池容量的影响,提出了一种与温度、退化状态、循环次数相关的锂离子电池容量退化模型,并结合现实案例分析验证了模型的合理性,为相关电动汽车运营企业提供了一种完整且准确的预测锂离子电池容量损失的方法,对锂离子电池的安全和维护起到一定的参考作用。

Based on the influence of temperature and charge-discharge rate on the capacity of lithiumion battery, a capacity degradation model of lithium-ion battery related to temperature, degradation state and cycle number was proposed. The rationality of the model was verified by real-life case analysis. It provides a complete and accurate method for predicting the capacity loss of lithiumion batteries for electric bus operators, and has certain reference value for the safety and maintenance of lithiumion battery.