高镍三元正极锂电池循环衰减分析  

Analysis of Cycle Attenuation of High Nickel Ternary Cathode Lithium Battery

作　　者：范昊天 冯春晖 谢欢 朱顺良 FAN Haotian;FENG Chunhui;XIE Huan;ZHU Shunliang(Shanghai Motor Vehicle Inspection Certification&Tech Innovation Center Co.,Ltd.,National Center of Supervision and Inspection on Motor Vehicle Products Quality(Shanghai),National Center of Supervision and Inspection on New Energy Motor Vehicle Products Quality(Shanghai),Shanghai 201805,China)

机构地区：[1]上海机动车检测认证技术研究中心有限公司,国家机动车产品质量监督检验中心(上海),国家新能源机动车产品质量监督检验中心,上海201805

出　　处：《电工材料》2021年第6期35-37,40,共4页Electrical Engineering Materials

摘　　要：本研究专注于高镍三元正极锂电池循环性能的试验,先通过循环测试,得到该电池的容量衰退结果,之后用容量增量分析法对不同循环次数后的电池进行容量增量分析,预估其容量衰减原因,最后对循环后的电池进行拆解,分析电池正负极结构和表面元素组成后进一步确认电池的衰减原因。This paper focuses on the experimental research on the cycle performance of high nickel ternary nickel lithium battery.Firstly,through the cycle test,the capacity decline results of the battery are obtained.Then,the capacity increment analysis is carried out for the battery after different cycles by the increment capacity analysis.The original cause of capacity attenuation is estimated.Finally,the battery after the cycle is disassembled,the cathode and anode structure and elements are analyzed.After the disassembly analysis,the estimation of attenuation reason of the battery are confirmed.

关 键 词：高镍三元正极锂电池 循环测试 容量增量分析法 拆解分析 

分 类 号：TM912[电气工程—电力电子与电力传动]