IONIC-CONDUCTIVITY AND LI-7 NMR-STUDY OF POLY(ETHYLENE GLYCOL) COMPLEXED WITH LITHIUM-SALTS

被引：67
作者：
PANERO, S
SCROSATI, B
GREENBAUM, SG
机构：
[1] WEIZMANN INST SCI,IL-76100 REHOVOT,ISRAEL
[2] CUNY HUNTER COLL,DEPT PHYS,NEW YORK,NY 10021
来源：
ELECTROCHIMICA ACTA | 1992年 / 37卷 / 09期
关键词：
POLY(ETHYLENE GLYCOL); IONIC CONDUCTIVITY; LI-7; NMR; ION-ION INTERACTIONS; INERT FILLERS;
D O I：
10.1016/0013-4686(92)80106-V
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
Complexes formed between lithium salts and low molecular weight (0.05 kg mol-1) poly(ethylene glycol) have been investigated by differential scanning calorimetry, Li-7 nuclear magnetic resonance (NMR), and complex impedance measurements. Li-7 NMR linewidths and hence mobilities are strongly influenced by polymer segmental motion above the glass transition. Strong cation-anion interactions in LiBF4 complexes are evidenced by substantial Li-7-F-19 dipolar coupling. Ionic conductivity results are similar to those reported for widely studied poly(ethylene oxide) complexes, in that broad conductivity vs salt concentration maxima are found. Finally, addition of up to 30 wt% of the inert ceramic powder gamma-LiAlO2, while improving the mechanical properties of the samples, is found to have a negligible effect on ionic conductivity.
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页码：1533 / 1538
页数：6
相关论文
共 17 条
  • [1] POLYMER ELECTROLYTES
    ARMAND, MB
    [J]. ANNUAL REVIEW OF MATERIALS SCIENCE, 1986, 16 : 245 - 261
  • [2] MICROSCOPIC INVESTIGATION OF IONIC-CONDUCTIVITY IN ALKALI-METAL SALTS POLY(ETHYLENE OXIDE) ADDUCTS
    BERTHIER, C
    GORECKI, W
    MINIER, M
    ARMAND, MB
    CHABAGNO, JM
    RIGAUD, P
    [J]. SOLID STATE IONICS, 1983, 11 (01) : 91 - 95
  • [3] A LI-7 NUCLEAR-MAGNETIC-RESONANCE STUDY OF LICF3SO3 COMPLEXED IN POLY(PROPYLENE-GLYCOL)
    CHUNG, SH
    JEFFREY, KR
    STEVENS, JR
    [J]. JOURNAL OF CHEMICAL PHYSICS, 1991, 94 (03) : 1803 - 1811
  • [4] CROCE F, 1990, 178TH FALL M EL SOC
  • [5] NMR-STUDIES OF NA+-ANION ASSOCIATION EFFECTS IN POLYMER ELECTROLYTES
    GREENBAUM, SG
    PAK, YS
    WINTERSGILL, MC
    FONTANELLA, JJ
    [J]. SOLID STATE IONICS, 1988, 31 (03) : 241 - 245
  • [6] GREENBAUM SG, 1990, MAT RES SOC S SOLID
  • [7] MacCallum J.R., 1987, POLYM ELECTROLYTE RE, V2
  • [8] MacCallum J. R., 1987, POLYM ELECTROLYTE RE, V1
  • [9] CHARACTERIZATION OF POLY(ETHYLENE OXIDE) COPPER SALE POLYMER ELECTROLYTES
    PASSERINI, S
    CURINI, R
    SCROSATI, B
    [J]. APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 1989, 49 (04): : 425 - 429
  • [10] INCREASING THE CONDUCTIVITY OF POLYMER SOLID ELECTROLYTES - A REVIEW
    PRZYLUSKI, J
    WIECZOREK, W
    [J]. SOLID STATE IONICS, 1989, 36 (3-4) : 165 - 169
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