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

页码：4756 / 4767

页数：12

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