Al, B, and F doped LiNi1/3Co1/3Mn1/3O2 as cathode material of lithium-ion batteries

被引：37

作者：

Ye, Shangyun ^{[1
]}

Xia, Yongyao

Zhang, Pingwei

Qiao, Zhiyu

机构：

[1] Univ Sci & Technol, Dept Phys Chem, Beijing 100083, Peoples R China

[2] Fudan Univ, Dept Chem, Shanghai 200433, Peoples R China

[3] Gejiu Superhoo Ind Ltd Corp, Yunnan 661000, Peoples R China

来源：

JOURNAL OF SOLID STATE ELECTROCHEMISTRY | 2007年 / 11卷 / 06期

关键词：

lithium-ion battery; cathode materials; doping; layered structure;

D O I：

10.1007/s10008-006-0226-8

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

A series of the mixed transition metal compounds, Li[( Ni1/3Co1/3Mn1/3)(1-x-y)AlxBy] O2-zFz (x= 0, 0.02, y= 0, 0.02, z= 0, 0.02), were synthesized via coprecipitation followed by a high-temperature heat-treatment. XRD patterns revealed that this material has a typical alpha-NaFeO2 type layered structure with R3(-)m space group. Rietveld refinement explained that cation mixing within the Li(Ni1/3Co1/3Mn1/3) O-2 could be absolutely diminished by Al-doping. Al, B and F doped compounds showed both improved physical and electrochemical properties, high tap-density, and delivered a reversible capacity of 190 mAh/g with excellent capacity retention even when the electrodes were cycled between 3.0 and 4.7 V.

引用

页码：805 / 810

页数：6

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