锂离子动力电池一致性评价方法的研究进展

Research progress in evaluation methods of consistency of Li-ion power battery

介绍了几种锂离子动力电池一致性评价方法的研究进展,对发展趋势进行了展望。单参数评价法不能反映电池的真实情况,不适合用于锂离子动力电池一致性的评价;多参数评价法能在一定程度上反映动力电池内部的差异,但无法反映动力电池充放电过程中的动态特性;充放电特性曲线评价法能较真实地反映电池的内部本征特性和使用过程中的动态特性,较适合于锂离子动力电池一致性的评价。

Several evaluation methods of Li-ion power battery and research progress,future trends and prospects were reviewed.The consistency of Li-ion power battery was not evaluated accurately by single parameter evaluation method since the real conditions were not reflected adequately. The inner characteristic of Li-ion power battery could be reflected properly to some extent by multi-parameters evaluation method,but the dynamic characteristic during charge-discharge was not reflected. The consistency of Li-ion power battery could be evaluated accurately by using charge-discharge characteristic curve since the intrinsic characteristic was re-flected adequately.