Poly (acrylonitrile) encapsulated graphite as anode materials for lithium ion batteries

被引：57

作者：

Guo, KK ^{[1
]}

Pan, QM ^{[1
]}

Fang, SB ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Chem, Beijing 100080, Peoples R China

来源：

JOURNAL OF POWER SOURCES | 2002年 / 111卷 / 02期

关键词：

lithium ion batteries; graphite anode; encapsulation; poly(acrylonitrile);

D O I：

10.1016/S0378-7753(02)00347-6

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：

Novel surface modification approach for graphite anode of lithium ion batteries was developed in this study. Poly(acrylonitrile) was in situ encapsulated on the surface of natural graphite (N-graphite) particles via radiation-initiated polymerization. The graphite obtained shows a large improvement in electrochemical performance such as initial Coulombic efficiency and cycleability compared with the original N-graphite. The structural stability of graphite surface is enhanced due to the fact that encapsulated poly(acrylonitrile) can depress the co-intercalation of solvated lithium ion. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：350 / 356

页数：7

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