화학공학소재연구정보센터
학회 한국공업화학회
학술대회 2017년 가을 (11/08 ~ 11/10, 부산 벡스코(BEXCO))
권호 21권 2호
발표분야 고분자_포스터
제목 Lignin based solid polymer electrolytes and binder for all-solid-state lithium secondary battery
초록 A series of lignin based copolymers were synthesized and used as both solid polymer electrolytes (SPEs) and binders for lithium secondary batteries. Star shaped poly(poly(ethylene glycol) methyl ether methacrylate-co-glycidyl methacrylate)(PEGMA-co-GMA) having lignin core was synthesized via atom transfer radical polymerization (ATRP) and crosslinked using photo acid catalyst. Physical, morphological and electrochemical properties of SPEs and binder are systematically analyzed. The ionic conductivity of synthesized polymers are increased as the composition of PEGMA increased. When the molar ratio of PEGMA to GMA was 95:5, free standing film with the highest ionic conductivity was obtained. In addition, excellent electrochemical performance was obtained when a star shaped polymer synthesized by ATRP with lignin core was used as a binder instead of PVDF.
저자 정다운, 이종찬, 심지민
소속 서울대
키워드 Lignin; Solid polymer electrolyte; Lithium battery
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