Synthesis and electrochemical performance of Li2CoSiO4 as cathode material for lithium ion batteries

被引：115

作者：

Gong, Z. L.

Li, Y. X.

Yang, Y. ^{[1
]}

机构：

[1] Xiamen Univ, State Key Lab Phys Chem Solid Surfaces, Xiamen 361005, Peoples R China

来源：

JOURNAL OF POWER SOURCES | 2007年 / 174卷 / 02期

基金：

中国国家自然科学基金;

关键词：

lithium ion battery; cobalt silicate; cathode material;

D O I：

10.1016/j.jpowsour.2007.06.250

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：

Li2CoSiO4 has been prepared successfully by a solution route or hydrothermal reaction for the first time, and its electrochemical performance has been investigated primarily. Reversible extraction and insertion of lithium from and into LiCoSiO4 at 4.1 V versus lithium have shown that this material is a potential candidate for the cathode in lithium ion batteries. At this stage reversible electrochemical extraction was limited to 0.46 lithium per formula unit for the Li2CoSiO4/C Composite materials, with a charge capacity of 234 mAh g(-1) and a discharge capacity of 75 mAh g(-1). (C) 2007 Published by Elsevier B.V.

引用

收藏

页码：524 / 527

页数：4

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