Long cycling life of Li2MnSiO4 lithium battery cathodes under the double protection from carbon coating and graphene network

被引：44

作者：

Zhao, Yi ^{[1
,2
]}

Wu, Chuxin ^{[1
]}

Li, Jiaxin ^{[1
]}

Guan, Lunhui ^{[1
]}

机构：

[1] Chinese Acad Sci, Fujian Inst Res Struct Matter, State Key Lab Struct Chem, Fuzhou 350002, Fujian, Peoples R China

[2] Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China

来源：

JOURNAL OF MATERIALS CHEMISTRY A | 2013年 / 1卷 / 12期

基金：

中国国家自然科学基金;

关键词：

ELECTROCHEMICAL PERFORMANCE; ION; FE; MN; NANOSHEETS; COMPOSITE; CO;

D O I：

10.1039/c3ta01521a

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：

Li2MnSiO4 possesses a high theoretical capacity of 332 mA h g(-1) as a lithium battery cathode, but it suffered from rapid capacity fading due to the structural instability and manganese dissolution during cycles. Herein, we developed a unique reduced graphene oxide (RGO)@Li2MnSiO4@C composite as a cathode material for lithium ion batteries. Under the double protection from RGO and carbon coating, Li2MnSiO4 demonstrated outstanding electrochemical performance with a high capacity of 290 mA h g(-1) at 0.05 C, and a long cycling life up to 700 cycles at 1 C.

引用

收藏

页码：3856 / 3859

页数：4

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