电源技术2026，Vol.50Issue(5)：824-829,6.DOI:10.3969/j.issn.1002-087X.2026.05.006
LiNi0.7Co0.1Mn0.2O2@C正极材料性能的研究
Performance study of LiNi0.7Co0.1Mn0.2O2@C cathode material
摘要
Abstract
To improve the residual lithium and enhance the electrochemical stability of LiNi0.7Co0.1-Mn0.2O2,glucose was used as the carbon source.A carbon-coated LiNi0.7Co0.1Mn0.2O2@C material was prepared through wet-chemical coating and high-temperature calcination.The sample was character-ized by X-ray diffraction(XRD)and scanning electron microscopy(SEM).Coin cells were assembled to test its electrochemical performance.The results show that the carbon coating effectively reduced surface residual alkali.The carbon coating not only significantly enhanced electronic conductivity but also improved overall electrochemical performance.At a current density of 0.2 C and a voltage range of 2.75-4.3 V,a discharge specific capacity of 186.1 mAh/g was achieved.The discharge efficiency reached 89.0%.After 80 cycles at 1 C,the capacity retention rate was 97.6%.A low charge transfer resistance was observed.关键词
三元正极材料/碳包覆/电化学性能/表面残锂Key words
ternary cathode material/surface coated with carbon/electrochemical performance/surface residual lithium分类
信息技术与安全科学引用本文复制引用
吴甜甜,徐宝和,李瑞锋,姜越洋,姚怡彤,江玉枫,周徐杰..LiNi0.7Co0.1Mn0.2O2@C正极材料性能的研究[J].电源技术,2026,50(5):824-829,6.基金项目
安徽省大学生创新训练一般项目(S202410375114) （S202410375114）
国家级大学生创新训练项目(202310375018) （202310375018）
横向项目(hxkt2025217) （hxkt2025217）
安徽省科技厅部级项目"国家重点实验室项目"(SKLCC2407) （SKLCC2407）
