Study on the Cycling Performance of Lithium-Air Cells assembled with Composite Gel Polymer Electrolyte

Title
Study on the Cycling Performance of Lithium-Air Cells assembled with Composite Gel Polymer Electrolyte
Author
문용복
Alternative Author(s)
Moon, Yong Bok
Advisor(s)
김동원
Issue Date
2018-02
Publisher
한양대학교
Degree
Master
Abstract
Composite gel polymer electrolytes based on poly(styrene-co-methyl methacrylate) copolymer and aluminum oxide were hybridized using simple solution casting method. The composite gel polymer electrolyte was stable toward attack by superoxide anion radical generated during electrochemical reaction. The composite gel polymer electrolyte exhibited an ionic conductivity of 2.7 x 10-4 S cm-1 at room temperature and alleviated the ether based electrolyte decomposition. Moreover, the composite gel polymer electrolyte showed electrochemical stability exceeding 5 V and dimensional stability when introduced between cathode and separator during cycling. Thus, the cycle performance of lithium-air cells employing composite gel polymer electrolyte improved as compared to that of lithium-air cell employing liquid electrolyte. The improved cycling performance could be attributed to suppression of the electrolyte decomposition.
URI
http://www.dcollection.net/handler/hanyang/000000105314http://repository.hanyang.ac.kr/handle/20.500.11754/68696
Appears in Collections:
GRADUATE SCHOOL[S](대학원) > CHEMICAL ENGINEERING(화학공학과) > Theses (Master)
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