화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2021년 봄 (04/07 ~ 04/09, 대전컨벤션센터)
권호 46권 1호
발표분야 고분자구조 및 물성
제목 Lithium ion battery research using solid polymer electrolyte
초록 Recently, such explosions and leaks of liquid electrolytes using in lithium-ion batteries lead to vast research focus on solid electrolytes because they are safer than liquid electrolytes. Among them, a solid electrolyte was fabricated by PEGDMA (Polyethylene Glycol Dimethacrylate) and lithium salts through UV-curing. PEGDMA was synthesized by reacting methacryloyl chloride with PEG without inhibitors. The methacryl has a double bond, which occurs in photopolymerization and radical polymerization. The advantage of EO of PEG used is that it provides a high donor count for alkali metals, so Li-ions can easily form coordination bonds with them. The advantage of this aliphatic lithium salt is that the Tg point is lower than the aromatic structure, which shows high conductivity at room temperatures. Besides, the dissociation energy is lower so giving better Li-ions and increasing the transference number of Li.
저자 장기석, 윤수진, 류태욱, 진레이, WEI ZHANG, 임현민, 김환기
소속 건국대
키워드 Lithium battery; solid polymer electrolyte; PEGDMA; UV-Curing; polymer
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