Improvement of the electrochemical properties of SnO2 electrodes for lithium rechargeable battery using protective Ta2O5 thin films

被引：5

作者：

Ahn, HJ

Kim, YS

Shim, HS

Kim, CY

Seong, TY ^{[1
]}

机构：

[1] GIST, Dept Mat Sci & Engn, Kwangju 500712, South Korea

[2] Gwangju Tecnopk, Kwangju 500470, South Korea

来源：

SOLID STATE IONICS | 2005年 / 176卷 / 7-8期

关键词：

thin film batteries; protective layer; Ta2O5; SnO2; electrode; sputtering;

D O I：

10.1016/j.ssi.2004.11.002

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：

We have investigated the effect of the protective Ta2O5 thin films on the electrochemical behaviors of test cells fabricated with SnO2 electrodes. It is shown that for the cells made with the single SnO2 electrodes, their cycling performance is rapidly degraded with increasing cycle number. However, the addition of the Ta2O5 thin film on the SnO2 electrodes results in a slow degradation of capacity. The improved electrochemical behaviors of the cells made with the Ta2O5 film-coated SnO2 electrodes are attributed to the combined roles that the Ta2O5 films serve as a protective layer and facilitate the passage of Li ions during cycling. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：699 / 702

页数：4

共 19 条

[1] Investigation of the structural and electrochemical properties of size-controlled SnO2 nanoparticles [J].