| 학회 |
한국고분자학회 |
| 학술대회 |
2014년 가을 (10/06 ~ 10/08, 제주 ICC) |
| 권호 |
39권 2호 |
| 발표분야 |
기능성 고분자 |
| 제목 |
Novel composite polymer electrolytes containing poly(ethylene glycol)-grafted graphene oxide for all-solid-state lithium-ion battery applications |
| 초록 |
A series of composite polymer electrolytes containing organic/inorganic hybrid branchedgraft copolymer (BCP) based on PEGMA and MA-POSS as polymer matrix and poly(ethylene glycol)-grafted graphene oxide (PGO) as filler material were prepared and they were applied as solid-state polymer electrolytes (SPEs) for lithium ion battery applications. The ionic conductivity of the composite polymer electrolyte containing 0.2 wt% of PGO was found to be one order of magnitude higher than that of the BCP, because larger amount of lithium salt can be dissociated in the composite polymer electrolyte by Lewis acid–base interactions between the PGO and lithium salt. All-solid-state battery performance was evaluated with the composite polymer electrolyte containing 0.2 wt% of PGO, resulting in superior cycle performance compared to that of the BCP due to the enhanced ionic conductivity as well as additional ionconducting paths provided by the PGO fillers. |
| 저자 |
심지민, 김동균, 이진홍, 백지훈, 이지수, 이종찬
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| 소속 |
서울대 |
| 키워드 |
Branched copolymer; PEG-grafted graphene oxide; Solid polymer electrolyte; lithium-ion battery
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| E-Mail |
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