Improving electrochemical performance of graphitic carbon in PC-based electrolyte by nano-TiO2 coating

被引：25

作者：

Gao, J. ^{[1
,2
,3
]}

Fu, L. J. ^{[1
,2
,3
]}

Zhang, H. P. ^{[1
,2
,3
]}

Yang, L. C. ^{[1
,2
,3
]}

Wu, Y. P. ^{[1
,2
,3
]}

机构：

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

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

[3] Fudan Tongxiang Power R&D Ctr, Zhejiang, Peoples R China

来源：

ELECTROCHIMICA ACTA | 2008年 / 53卷 / 05期

基金：

中国国家自然科学基金;

关键词：

lithium ion battery; anode material; graphitic carbon; propylene carbonate; nano-TiO2; coating;

D O I：

10.1016/j.electacta.2007.09.058

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Graphitic carbon was coated with nano-TiO2 by a simple mechanical process. X-ray diffraction and scanning electron microscopy were used to measure the crystal structure and surface morphology of the coated composite. Tests of galvanostatic discharge and charge and cyclic voltammograms suggest that the decomposition of propylene carbonate and the exfoliation of graphite are greatly suppressed. Lithium ions can reversibly intercalate into and deintercalate from the TiO2-coated graphite, and quite stable cycling behavior in propylene carbonate-based electrolyte is achieved. (c) 2007 Elsevier Ltd. All rights reserved.

引用

页码：2376 / 2379

页数：4

共 34 条

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