| 학회 |
한국공업화학회 |
| 학술대회 |
2018년 봄 (05/02 ~ 05/04, 대구 엑스코(EXCO)) |
| 권호 |
22권 1호 |
| 발표분야 |
고분자_포스터 |
| 제목 |
Solid-State Composite Electrolytes with Poly(ethylene glycol)-grafted Graphene Oxide for Lithium-ion Battery |
| 초록 |
For safety problem, lithium-ion battery is now on transition to be all-solid-state, and then electrolytes should be substituted to solid state. In this research, composites of branched-graft copolymer(BgCP) which are based on PEGMA and MA-POSS (Matrix) with Poly(ethylene glycol) grafted graphene oxide(PGO) (filler material) were applied to solid electrolytes. Composite electrolyte with 0.2wt% of PGO showed one higher order of ionic conductivity than BgCP without PGO. It is caused by Lewis acid-base interaction, which induces much more lithium salt dissociation in the composite. Electrochemical properties of composite electrolytes were evaluated and composite electrolytes with 0.2 wt% PGO showed noteworthy cycle performance compared to BgCP. This is because the ion-conducting pathway formed by the filler implements a high ionic conductivity. |
| 저자 |
궁찬영1, 심지민2, 백지훈1, 정다운1, 이종찬1
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| 소속 |
1서울대, 2Univ. of Minnesota |
| 키워드 |
Lithiim-ion battery; Electrolyte; Graphene Oxide; Composite; all-solid-state
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| E-Mail |
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