A Li-rich Li[Li0.2Ni0.2Mn0.6]O2 Cathode Material in situ Coated with Polyaniline

被引：7
|
作者：
Sun, Lingna [1 ]
Yi, Xianwen [1 ]
Shi, Chuan [1 ]
Ren, Xiangzhong [1 ]
Gao, Yuan [1 ]
Li, Yongliang [1 ]
Zhang, Peixin [1 ]
机构：
[1] Shenzhen Univ, Coll Chem & Environm Engn, Shenzhen 518060, Peoples R China
来源：
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE | 2017年 / 12卷 / 06期
基金：
中国国家自然科学基金;
关键词：
Li[Li0.2Ni0.2Mn0.6]O-2; Polyaniline; Li-rich materials; Cathode materials; LITHIUM-ION BATTERIES; ELECTROCHEMICAL PERFORMANCE; SURFACE MODIFICATION; CONDUCTING POLYMER; PEDOT-PSS; ELECTRODES; LI1.2NI0.2MN0.6O2; CHALLENGES; CARBON; OXIDE;
D O I：
10.20964/2017.06.10
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
A Li-rich Li[Li0.2Ni0.2Mn0.6]O-2 cathode material coated with polyaniline (PANI) was prepared by a chemical in situ polymerization method. PANI is evenly coated on the surface of particles of the Li-characterized using X-ray diffraction (XRD), scanning electron microscopy (SEM), cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS). When the PANI coating content was 6%, the Li-rich material exhibited a regular morphology and optimal electrochemical properties. The initial specific discharge capacity of the Li-rich material Li[Li0.2Ni0.2Mn0.6]O-2/PANI was 262.0 mAh g(-1) at 0.1 C, and that after 50 cycles was 243.7 mAh g(-1) , representing a capacity retention of 93% after 50 cycles.
引用
收藏
页码：4756 / 4767
页数：12
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