Discontinuous Changes in Ionic Conductivity of a Block Copolymer Electrolyte through an Order-Disorder Transition

被引：61

作者：

Teran, Alexander A. ^{[1
,3
]}

Mullin, Scott A. ^{[1
,3
]}

Hallinan, Daniel T., Jr. ^{[1
,3
]}

Balsara, Nitash P. ^{[1
,2
,3
]}

机构：

[1] Lawrence Berkeley Natl Lab, Environm Energy Technol Div, Berkeley, CA 94720 USA

[2] Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA

[3] Univ Calif Berkeley, Dept Chem & Biomol Engn, Berkeley, CA 94720 USA

来源：

ACS MACRO LETTERS | 2012年 / 1卷 / 02期

基金：

美国国家科学基金会;

关键词：

POLY(ETHYLENE OXIDE)/LII MELTS; MOLECULAR-DYNAMICS SIMULATIONS; MICROPHASE SEPARATION; POLYMER ELECTROLYTES; WEIGHT; TRANSPORT; BATTERIES;

D O I：

10.1021/mz200183t

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The ionic conductivity of a block copolymer electrolyte was measured in an in situ small-angle X-ray scattering experiment as it transitioned from an ordered lamellar structure to a disordered phase. The ionic conductivity increases discontinuously as the electrolyte transitions from order to disorder. A simple framework for quantifying the magnitude of the discontinuity is presented. This study lays the groundwork for understanding the effect of more complex phase transitions such as order-order transitions on ion transport.

引用

页码：305 / 309

页数：5

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