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Organic-inorganic hybrid solid electrolytes for solid-state lithium cells operating at room temperature

Title
Organic-inorganic hybrid solid electrolytes for solid-state lithium cells operating at room temperature
Author
김동원
Keywords
Hybrid solid electrolyte; Solid-state lithium cell; Ceramic electrolyte; Polymer electrolyte; Room temperature operation
Issue Date
2016-11
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Citation
ELECTROCHIMICA ACTA, v. 218, Page. 271-277
Abstract
Organic-inorganic hybrid solid electrolytes composed of Li+-conducting lithium aluminum germanium phosphate (LAGP), poly(ethylene oxide) (PEO), lithium perchlorate and succinonitrile (SN) were prepared in the form of flexible thin film, and their electrochemical properties were investigated. The hybrid solid electrolytes showed high ionic conductivities ranging from 3.0 x 10(-5) to 1.1 x 10(-4) S cm(-1) at room temperature and exhibited good electrochemical stability. A solid-state Li/LiFePO4 cell assembled with hybrid solid electrolyte composed of 70 wt.% LAGP, 21 wt.% PEO-LiClO4 and 9 wt.% SN delivered a high discharge capacity and exhibited good capacity retention at ambient temperature. Good cycling performance of the cell resulted from the high ionic conductivity of the solid electrolyte and its good interfacial contacts with electrodes. (C) 2016 Elsevier Ltd. All rights reserved.
URI
https://www.sciencedirect.com/science/article/pii/S0013468616320618http://repository.hanyang.ac.kr/handle/20.500.11754/101091
ISSN
0013-4686; 1873-3859
DOI
10.1016/j.electacta.2016.09.141
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > CHEMICAL ENGINEERING(화학공학과) > Articles
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