Enhancement of ionic conductivity of composite membranes for all-solid-state lithium rechargeable batteries incorporating tetragonal Li7La3Zr2O12 into a polyethylene oxide matrix

被引：250

作者：

Choi, Jeong-Hee ^{[1
]}

Lee, Chul-Ho ^{[1
]}

Yu, Ji-Hyun ^{[1
]}

Doh, Chil-Hoon ^{[1
]}

Lee, Sang-Min ^{[1
]}

机构：

[1] Korea Electrotechnol Res Inst, Changwon Si 642120, Gyeongsangnam D, South Korea

来源：

JOURNAL OF POWER SOURCES | 2015年 / 274卷

关键词：

Inorganic solid electrolyte; Polyethylene oxide; Hybridization; Ionic conductivity; Synergetic effect; NANOCOMPOSITE POLYMER ELECTROLYTES; GARNET-RELATED STRUCTURE; METAL ANODE; FABRICATION; BA;

D O I：

10.1016/j.jpowsour.2014.10.078

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：

The lithium ion conductivities of as-prepared composite membranes consisting of a polyethylene oxide (PEO) matrix with various contents of tetragonal Li7La3Zr2O12 (LLZO) were evaluated, and the optimum composition (52.5% LLZO) was determined by performing AC impedance measurements. The ionic conductivities of the composite membranes pass through a maximum as the LLZO content varies. Therefore, the hybridization of the organic and inorganic components of these membranes results in synergetic effects on their lithium ionic conductivity. In addition, tests of Li/composite membrane/LiNi0.6Co0.2Mn0.2O2 half-cells found that their charge/discharge properties are better than those of a PEO-only membrane and a membrane containing 52.5% Al2O3 instead of LLZO. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：458 / 463

页数：6

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