Highly conductive bridges between graphite spheres to improve the cycle performance of a graphite anode in lithium-ion batteries

被引：37

作者：

Wang, Hongyu

Umeno, Tatsuo ^{[1
]}

Mizuma, Koutarou ^{[1
]}

Yoshio, Masaki ^{[2
]}

机构：

[1] Mitsui Min Co Ltd, Res Ctr, Wakamatsu Ku, Kitakyushu, Fukuoka 8080021, Japan

[2] Saga Univ, Adv Res Ctr, Saga 8400047, Japan

来源：

JOURNAL OF POWER SOURCES | 2008年 / 175卷 / 02期

关键词：

spherical natural graphite; acetylene black; cycle performance; lithium-ion batteries; anode material;

D O I：

10.1016/j.jpowsour.2007.09.103

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：

Spherical carbon-coated natural graphite (SCCNG) is a promising anode material for lithium-ion batteries, but the smooth surface of graphite spheres is difficult to wet with an aqueous binder solution, and lacks electrical contacts. As a result, the cycle performance of such a graphite anode material is not satisfactory. An effective method has been introduced to tightly connect adjacent SCCNG particles by a highly conductive binder, viz. acetylene black bridges. The effect of the conductive bridges on the cyclability of SCCNG electrode has been investigated. (C) 2007 Published by Elsevier B.V.

引用

页码：886 / 890

页数：5

共 25 条

[1] THE CATHODIC DECOMPOSITION OF PROPYLENE CARBONATE IN LITHIUM BATTERIES [J].