화학공학소재연구정보센터
학회 한국공업화학회
학술대회 2019년 봄 (05/01 ~ 05/03, 부산 벡스코(BEXCO))
권호 23권 1호
발표분야 고분자_포스터
제목 Graphene Oxide based Solid-State Composite Electrolyte for Lithium-ion Battery through Grafting Poly(ethylene glycol)
초록 Conventional liquid electrolyte based lithium-ion battery system has safety problems e.g. leakage, explosion. To solve aforementioned problems, solid-state lithium-ion battery system is imperative. This research shows composite electrolyte for this reason. The solid-state composites electrolyte is composed of PEGMA and MA-POSS copolymer matrix with poly(ethylene glycol) grafted graphene oxide filler material. 0.2wt% of filler material made pretty higher ionic conductivity of the matrix electrolyte than the matrix without the filler material. Lewis acid-base interaction making lithium salts dissociation included in the matrix could explain the superiority. Also, the composite electrolyte showed quite stable cycle performance compared to the matrix without the filler since ion-conducting pathways were formed by implementing the filler.
저자 궁찬영, 심지민, 백지훈, 정다운, 이종찬
소속 서울대
키워드 Polymer; Electrolyte; Lithium-ion Battery; Graphene Oxide
E-Mail