화학공학소재연구정보센터
학회 한국공업화학회
학술대회 2019년 가을 (10/30 ~ 11/01, 제주국제컨벤션센터(ICC JEJU))
권호 23권 2호
발표분야 포스터_고분자
제목 Sustainable Lignin-Derived Crosslinked Graft Polymers as Electrolyte and Binder Materials for All-Solid-State Lithium Metal Batteries
초록 We report a well-defined synthetic route to achieve sustainable lignin-derived multifunctional graft polymers by simple chemical modification and atom transfer radical polymerization (ATRP). By grafting ion-conducting poly(ethylene glycol) and crosslinkable epoxy moieties from multiple hydroxyl groups of lignin, star-shaped functional polymers are obtained. Upon crosslinking, the resulting polymer network exhibits mechanical integrity even at high temperatures, while chain mobility is also preserved well despite the crosslinked structure due to the intrinsic free volume attained by star-shaped topology as well as bulky lignin core. We further evaluate their utilization toward solid polymer electrolyte (SPE) and binder materials for all-solid-state lithium metal batteries (LMBs). This study highlights the possibility of adopting sustainable lignin as battery components by introducing distinct functionalities.
저자 정다운1, 심지민2, 이종찬1
소속 1서울대, 2Univ. of Minnesota
키워드 Lignin; lithium metal battery; solid-polymer-electrolyte; binder
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