화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2019년 봄 (04/24 ~ 04/26, 제주국제컨벤션센터)
권호 25권 1호, p.447
발표분야 에너지 환경(Energy and Environment)
제목 Mesoporous carbon fibers/SnO2 composite as high performance anode material for lithium-ion batteries
초록 Lithium-ion batteries which can provide high energy densities are considered as the most promising battery for next generation energy storage. Tin oxide (SnO2), which has a theoretical capacity of 782 mAh g-1, has been studied as an anode material for LIBs. It’s a promising material to replace commercialized graphite which has a theoretical capacity of 372 mAh g-1. However, SnO2 has challenges to surmount for commercialization such as relatively low conductivity and huge volumetric change. Such limitations of SnO2 lead to precarious electrochemical performances. Herein, mesoporous carbon fibers/SnO2 composite (MCFs/SnO2) was prepared to solve the above-mentioned issues. MCFs based on polyacrylonitrile act as a conductor to compensate the conductivity problem of SnO2 anode material and also provide the second current collector of the electrode. Furthermore, nanosized SnO2 particles show less crack formation compared with bulk, resulting in stable electrochemical properties.
저자 허정원, Rakesh Saroha, Xueying Li, 안주현
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