Structural characterization and electrochemical properties of non-graphitizable carbons for a lithium ion battery

被引：13
|
作者：
Tokumitsu, K [1 ]
Fujimoto, H [1 ]
Mabuchi, A [1 ]
Kasuh, T [1 ]
机构：
[1] Osaka Gas Co Ltd, Ctr Res & Dev, Konohana Ku, Osaka 5540051, Japan
来源：
JOURNAL OF POWER SOURCES | 2000年 / 90卷 / 02期
关键词：
lithium ion battery; lithium insertion; intercalation compounds; X-ray diffraction; electrochemical properties;
D O I：
10.1016/S0378-7753(00)00412-2
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：
Structural characteristics and electrochemical properties of non-graphitizable carbons were investigated. The carbons were obtained by heat-treating the oxidized graphitizable carbon precursors with various molar ratios of aromatic compounds and cross-linking agent. The discharge profiles of the non-graphitizable carbons heat-treated at 600 degrees C had one plateau discharge region at 1.0 V vs. Li/Li+, which is similar to graphitizable ones heat-treated at the temperature. However, the discharge profiles of the non-graphitizable carbons heat-treated above 800 degrees C exhibited two plateau discharge regions at 0.2 and 1.0 V vs. Li/Li+. The discharge capacities of the non-graphitizable carbons increased with an increase of cavity volume, which was controlled by molar ratios of aromatic compound and cross-linking agent. The structural parameters proposed were measured to compare with each other, and it was found that they showed good correlation. (C) 2000 Elsevier Science S.A. All rights reserved.
引用
收藏
页码：206 / 213
页数：8
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