高镍三元锂离子电池循环衰减分析及改善

张欣, 孔令丽, 高腾跃, 李海涛, 姚晓辉, 李福轩

Analysis and improvement of cycle performance for Ni-rich lithium ion battery

Xin ZHANG, Lingli KONG, Tengyue GAO, Haitao LI, Xiaohui YAO, Fuxuan LI

表1 高镍正极循环前后晶胞参数对比

Table 1 Cell parameters of fresh and cycled Ni-rich cathode materials

item fresh RT cycle 45 ℃ cycle I(003)/I(104) 1.5864 1.4484 1.2274 a /? 2.8652 2.8662 2.8676 c /? 14.200 14.186 14.165 c/a 4.9560 4.9494 4.9397