Preparation of Cu coating on graphite electrode foil and its suppressive effect on PC composition

被引：19

作者：

Gao, J.

Zhang, H. P.

Zhang, T.

Wu, Y. P.

Holze, R. ^{[1
]}

机构：

[1] Tech Univ Chem, AG Elektrochem, Inst Chem, D-09111 Chemnitz, Germany

[2] Fudan Univ, Dept Chem, Shanghai 200433, Peoples R China

[3] Fudan Univ, Shanghai Key Lab Mol Cataly & Innovat Mat, Shanghai 200433, Peoples R China

[4] Fudan Univ, Tongxiang R&D Ctr Power Batteries, Tongxiang, Zhejiang, Peoples R China

来源：

SOLID STATE IONICS | 2007年 / 178卷 / 19-20期

基金：

中国国家自然科学基金;

关键词：

lithium ion battery; electroless plating; low temperature; propylene carbonate; cu coating;

D O I：

10.1016/j.ssi.2007.06.004

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：

Cu-coated graphite electrode foil was prepared by an improved electroless plating method. Scanning electron microscopy (SEM) and energy dispersive X-ray (EDX) analysis were used to study the surface morphology and composition of Cu-coated graphite electrode foil. Tests of discharge and charge and cyclic voltammograms suggest that the decomposition of propylene carbonate and exfoliation of graphite are greatly suppressed, and lithium ions can reversibly intercalate into and de-intercalate from the Cu-coated graphite electrode. Results from electrochemical impedance spectroscopy show that the Cu-coated graphite electrode has lower charge-transfer resistance and higher diffusion coefficient of lithium ions in comparison with the original graphite. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：1225 / 1229

页数：5

共 31 条

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