STUDY ON THE IONIC-CONDUCTIVITY AND MOBILITY OF LIQUID POLYMER ELECTROLYTES CONTAINING LITHIUM-SALTS

被引：15
作者：
KIM, DW
RYOO, BK
PARK, JK
MAENG, KS
HWANG, TS
机构：
[1] KOREA ADV INST SCI & TECHNOL,DEPT CHEM ENGN,373-1 KUSUNG DONG,TAEJON 305701,SOUTH KOREA
[2] CHUNGNAM NATL UNIV,DEPT CHEM ENGN,TAEJON 302764,SOUTH KOREA
来源：
POLYMER JOURNAL | 1992年 / 24卷 / 06期
关键词：
POLYMER ELECTROLYTE; POLY(PROPYLENE OXIDE); POLY(ETHYLENE OXIDE); IONIC CONDUCTIVITY; IONIC MOBILITY; LI-7; NMR; SPIN SPIN RELAXATION TIME;
D O I：
10.1295/polymj.24.509
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
We report ionic conductivities and mobilities of the liquid polymer electrolytes formed by dissolving the lithium salts in poly(ethylene oxide) and poly(propylene oxide). A high resolution NMR (nuclear magnetic resonance) relaxation technique was used to study the dynamics of the ions in polymer electrolytes. The Li-7 NMR results revealed the coexistence of two separate lineshape components with substantially different spin-spin relaxation times (T2). From the resolution of the two components, we could estimate the spin-spin relaxation time of the mobile free lithium ion and also the fraction of free lithium ions contributing to the ionic conductivity in polymer electrolyte.
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收藏
页码：509 / 518
页数：10
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