锂离子电池正极材料低温性能衰退机理研究
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齐四清, 苏林华, 范新宇, 姜楠, 王鹏飞
Study on the Cathode Materials’ Deterioration Mechanism for Lithium-ion Batteries at Low Temperature
QI Siqing, SU Linhua, FAN Xinyu, JIANG Nan, WANG Pengfei
表1
常温25 ℃阻抗拟合数据
材料种类
LiFePO
4
LiCoO
2
LiNi
0.6
Co
0.2
Mn
0.2
O
2
固有电阻
R
b
/Ω
2.244 (2.96%)
5.452 (1.21%)
2.269 (3.164%)
正极转移
R
ct
/Ω
418.5 (1.20%)
263.6 (1.91%)
178.9 (1.08%)