锂离子电池高温贮存容量衰减分析

程广玉, 刘新伟, 梅悦旎, 顾洪汇, 杨丞, 王可

Capacity fading analysis of lithium-ion battery after high temperature storage

Guangyu CHENG, Xinwei LIU, Yueni MEI, Honghui GU, Cheng YANG, Ke WANG

表5 两种电池正负极ICP测试结果

Table 5 ICP test results of cathodes and anodes of the two batteries

项目 Al Co Ni 25 ℃正极 浓度/(mg/L) 1.183 6.24 38.58 化学计量比 0.054328 0.131198 0.814474 70 ℃正极 浓度/(mg/L) 1.662 6.74 39.47 化学计量比 0.072601 0.134796 0.792603 25 ℃负极 浓度/(mg/L) — — — 70 ℃负极 浓度/(mg/L) 0.103 — —