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조재필

Cho, Jaephil
Nano Energy Storage Material Lab.
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Preparation and electrochemical properties of glass-polymer composite electrolytes for lithium batteries

Author(s)
Cho, JaephilLiu, Meilin
Issued Date
1997
DOI
10.1016/S0013-4686(96)00303-9
URI
https://scholarworks.unist.ac.kr/handle/201301/9110
Fulltext
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=0030709180
Citation
ELECTROCHIMICA ACTA, v.42, no.10, pp.1481 - 1488
Abstract
Electrochemical behavior of a new class of glass-polymer composites (GPC), consisting of (100-cursive chi) vol% (0.56Li2S·0.19B2S3·0.25LiI) glass and cursive chi vol% (P(EO)6·LiN(CF3SO2)2) polymer with cursive chi = 7, 13 and 25, has been investigated in cells with different electrodes. Results show that the addition of the polymer to the glass powder increases not only the mechanical flexibility but also the ionic conductivity. The combination of impedance spectroscopy and 4-probe dc measurements indicates that the GPC with cursive chi = 13 vol% polymer exhibits the highest lithium ion conductivity, varying from 3 × 10-4 Ω-4 cm-1 at room temperature to 1.4 × 10-3 Ω-4 cm-1 at 80°C. In addition, the GPC electrolytes with cursive chi = 13 vol% seem to be relatively stable against Li, Licursive chiMn2O4, and carbon electrodes, since interfacial impedances between the electrolyte and the electrode materials are relatively constant at 70°C for up to 375 hours.
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
ISSN
0013-4686

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