电动汽车用动力锂离子电池寿命问题研究综述

Review on life studies of traction Li-ion batteries in electric vehicles

动力电池作为电动汽车关键零部件之一,对其寿命问题的研究成为一个关键点。对动力锂离子电池的寿命研究进行综述,重点阐述了电池性能衰减机理及其影响因素、电池寿命测试方法、电池寿命预测建模及电池寿命状态在线估计等方面的研究成果,并提出了未来该领域需要解决的问题。

Traction battery was one of the most important components of the electric vehicles （EVs）. The studies on life issues of traction batteries have attracted more and more attention. The research progresses on life studies of lithium-ion batteries, including those of mechanisms and affecting factors of performance degradation during ageing, life test procedures, life prediction models and online SOH estimation algorithms were reviewed. Some practical problems still existing were proposed at last as well.