Characterization of Na-substituted LiNi1/3Co1/3Mn1/3O2 cathode materials for lithium-ion battery

被引：16

作者：

Chen, Zhaoyong ^{[1
]}

Xie, Tian ^{[1
]}

Li, Lingjun ^{[1
]}

Xu, Ming ^{[1
]}

Zhu, Huali ^{[1
]}

Wang, Wenhua ^{[1
]}

机构：

[1] Changsha Univ Sci & Technol, Sch Phys & Elect Sci, Changsha 410114, Hunan, Peoples R China

来源：

IONICS | 2014年 / 20卷 / 05期

基金：

中国国家自然科学基金;

关键词：

Lithium ion battery; LiNi1/3Co1/3Mn1/3O2; Cathode material; Na substitution; ELECTROCHEMICAL PERFORMANCE; LICO1/3NI1/3MN1/3O2; CO;

D O I：

10.1007/s11581-013-1022-y

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Highly crystalline layered Li1-xNaxNi1/3Co1/3Mn1/3O2 (x = 0, 0.001, 0.01, 0.03, 0.05) materials are synthesized by molten salts method and characterized by scanning electron microscopy, inductively coupled plasma (ICP), X-ray diffraction, Rietveld refinement, and electrochemical measurement, respectively. ICP, SEM, and EDS results show that Na ions are incorporated in LiNi1/3Co1/3Mn1/3O2. Rietveld refinement results show that suitable Na substitution leads to stable layered structure by full Na occupying in Li layer and further attributes to low cation mixing. Electrochemical studies demonstrate that the Na-substituted LiNi1/3Co1/3Mn1/3O2 shows improved rate capability and cycling performance compared to that of pure LiNi1/3Co1/3Mn1/3O2.

引用

页码：629 / 634

页数：6

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