Correlation between the structure and electrochemical properties of carbon materials

被引：33
|
作者：
Qiu, WH [1 ]
Zhang, G [1 ]
Lu, SG [1 ]
Liu, QG [1 ]
机构：
[1] Univ Sci & Technol Beijing, Lab Solid State Ion, Beijing 100083, Peoples R China
来源：
SOLID STATE IONICS | 1999年 / 121卷 / 1-4期
关键词：
lithium ion battery; anode material; composite carbonaceous anode; core-shell structure;
D O I：
10.1016/S0167-2738(98)00531-1
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：
Graphite has been used as the anode far a lithium ion battery. It shows high reversible Lithium intercalate capacity and a flat voltage output near zero volts (vs. Li). However, there are some problems, such as slow lithium ion diffusion rate and poor compatibility with electrolyte solutions. In this work, a coke/graphite composite with core-shell structure has been manufactured. The disordered coke shell will protect the graphite core from exfoliation and improve the diffusion rate of lithium ions into the composite particles. This core/shell composite carbon anode shows high capacity, excellent kinetics and good compatibility with electrolyte solutions in comparison with naked graphite anode. (C) 1999 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：73 / 77
页数：5
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