화학공학소재연구정보센터
학회 한국공업화학회
학술대회 2019년 봄 (05/01 ~ 05/03, 부산 벡스코(BEXCO))
권호 23권 1호
발표분야 (디스플레이) 고효율 에너지 부품을 위한 용액공정용 전하 전달 소재 기술:전략적핵심소재기술개발사업
제목 Lithium-Silica nanosalts for Electrolyte Additives
초록 Zwitterionic lithium-silica sulfobetaine silane is fabricated by first synthesizing zwitterion sulfobetaine silane, grafting it onto hydrophilic silica to form silica sulfobetaine silane, and then lithiating the silica sulfobetaine silane. The resultant lithium-silica sulfobetaine silane additive is used as a liquid electrolyte additive in lithium-ion batteries with varying weight percentages in 1 M LiPF6 (ethylene carbonate/dimethyl carbonate = 1:1). The electrolytes with the lithium-silica sulfobetaine silane shows higher ionic conductivities and greater electrochemical stability (anodic limit at ~5.5 V vs. Li/Li^+) than the pure electrolyte (anodic limit at ~4.6 V vs. Li/Li^+).
저자 고장면
소속 한밭대
키워드 silica; zwitterion; ionic conductivity; solid electrolyte interface
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