Characteristics of lithium-ion-conducting composite polymer-glass secondary cell electrolytes

被引:65
|
作者
Zhang, XW [1 ]
Wang, CS
Appleby, AJ
Little, FE
机构
[1] Texas A&M Univ, Texas Engn Expt Stn, Ctr Electrochem Syst & Hydrogen Res, College Stn, TX 77843 USA
[2] Texas A&M Univ, Ctr Space Power, Texas Engn Expt Stn, College Stn, TX 77843 USA
关键词
composite electrolyte; Li+-conducting glasses; conductivity; stability; interfacial properties;
D O I
10.1016/S0378-7753(02)00365-8
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
A family of lithium-ion-conducting composite polymer-glass electrolytes containing the glass composition 14Li2O-9Al(2)O(3)-38TiO(2)-39P(2)O(5) (abbreviated as (LiAlTiP)(x)O-y) with high ionic conductivity, an excellent electrochemical stability range, and high compatibility with lithium insertion anodes is described. An optimized composition has a room temperature conductivity of 1.7 x 10(-4) S cm(-1), an Li+ transference number of 0.39, and an electrochemical stability window to +5.1 V versus Li/Li+. It also has good interfacial stability under both open-circuit and lithium metal plating-stripping conditions and provides good shelf-life. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:209 / 215
页数:7
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