电池2013，Vol.43Issue(3)：143-146,4.
正极材料LiNi1/3CO1/3Mn1/3O2包覆LiNi0.8Co0.15Al0.05O2的性能
Performance of cathode material LiNi1/3Co1/3Mn1/3O2coated LiNi0.8Co0.15Al0.05O2
胡国荣 1谭潮溥 1杜柯 1黄金龙1
作者信息
- 1. 中南大学冶金科学与工程学院,湖南长沙410083
- 折叠
摘要
Abstract
Quasi-ternary material precursor Ni1/3 Co1/3 Mn1/3 (OH) 2 was coated on the surface of LiNi0.8 Co0.15 Al0.05 (OH) 2 spherical by a co-precipitation method using NiSO4 · 6H2 O,CoSO4 · 7 H2O,MnSO4 · H2 O,NH3 · H2 O and NaOH as raw materials.Composite layered material Li[(Ni0.8 Co0.15 Al0.05)0.97 (Ni1/3 Co1/3 Mn1/3)0.03] O2 was synthesized by sintering at 750 ℃ in oxygen atmosphere after matching lithium.The composite layered material had a core-shell structure,the thickness of the coated shell layer was about 1 μm.When the composite layered material was charged-discharged in 2.8 ～ 4.3 V,its 0.1 C initial speckfic discharge capacity was 188.2 mAh/g,the capacity retention after 100 cycles with (θ).2 C was 96.2％,when cycled with 0.2 C at 55 ℃ for 100 times,its specific discharge capacity kept at 163.2 mAh/g.关键词
锂离子电池/正极材料/包覆/电化学性能Key words
Li-ion battery/ cathode material/ coating/ electrochemical performance分类
信息技术与安全科学引用本文复制引用
胡国荣,谭潮溥,杜柯,黄金龙..正极材料LiNi1/3CO1/3Mn1/3O2包覆LiNi0.8Co0.15Al0.05O2的性能[J].电池,2013,43(3):143-146,4.
