Electrochemical characteristics of Li/LiMn2O4 cells using gel polymer electrolytes

被引：17

作者：

Kim, DW ^{[1
]}

Ko, JM ^{[1
]}

Chun, JH ^{[1
]}

机构：

[1] Taejon Natl Univ Technol, Dept Chem Technol, Yusung Gu, Taejon 305719, South Korea

来源：

JOURNAL OF POWER SOURCES | 2001年 / 93卷 / 1-2期

关键词：

cycling performance; gel polymer electrolytes; ionic conductivity; lithium manganese oxide; lithium polymer battery;

D O I：

10.1016/S0378-7753(00)00560-7

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：

Gel polymer electrolytes composed of acrylonitrile-methylmethacrylate (AM) copolymer and 1 M LiClO4-ethylene carbonate (EC)/propylene carbonate (PC) are prepared. The ionic conductivity reaches 1.9 x 10(-3) S cm(-1) in a gel polymer electrolyte with 20 wt.% of AM copolymer and 80 wt.% of LiClO4-EC/PC at room temperature. These systems showed no solvent exudation from the matrix polymer due to enhanced compatibility between AM copolymer and organic liquid electrolyte. A Li/gel polymer electrolyte/LiMn2O4 cell has a reversible capacity of 132 mAh g(-1) in the voltage range of 3.0-4.3 Vat the C/5 rate and shows good cycling performance with a coulombic efficiency >99%. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：151 / 155

页数：5

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