A comparative investigation on multiwalled carbon nanotubes and carbon black as conducting additive in LiNi0.7Co0.3O2

被引：32

作者：

Li, XL ^{[1
]}

Kang, FY ^{[1
]}

Shen, WC ^{[1
]}

机构：

[1] Tsinghua Univ, Dept Mat Sci & Engn, Adv Mat Lab, Beijing 100084, Peoples R China

来源：

ELECTROCHEMICAL AND SOLID STATE LETTERS | 2006年 / 9卷 / 03期

关键词：

D O I：

10.1149/1.2161442

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

A comparative investigation was carried out on multiwalled carbon nanotubes (MWCNTs) and carbon black as a conducting additive in LiNi0.7Co0.3O2 for lithium ion batteries. All LiNi0.7Co0.3O2 particles were connected together by well-crystallized MWCNTs to form a conductive network wiring. The discharge capacities of the composite cathode were improved to be 223 mAh/g with 89.9% efficiency at the C/10 rate and 214 mAh/g at the 1C rate in the initial cycle when carbon black was replaced by MWCNTs. The results proved that MWCNTs wrapping was an effective way to improve electron conducting and reversible capacity with high cycle efficiency of cathode materials. (c) 2006 The Electrochemical Society.

引用

页码：A126 / A129

页数：4

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