三元锂电池性能衰减实验及分析研究

Experimental and analytical study on performance attenuation of ternary lithium batteries

三元锂电池是目前常见的动力电池之一。针对三元锂电池进行了参考特性测试和寿命循环测试,对待测电池容量、内阻、开路电压、充电特性、工况特性分析研究,用于探究其老化衰减特性,为后续研究三元锂电池老化状态评估、寿命预测及梯次利用提供实验数据基础。

Ternary lithium battery is one of the most common power batteries. Reference characteristic test and life cycle test were carried out for ternary lithium batteries. The capacity, internal resistance, open-circuit voltage,charging characteristics and operating conditions of the batteries were analyzed and studied to explore their aging attenuation characteristics. Experimental data basis was provided for subsequent research on aging state evaluation,life prediction and cascade utilization of ternary lithium batteries.