화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2006년 봄 (04/20 ~ 04/21, 대구 인터불고 호텔)
권호 12권 1호, p.920
발표분야 재료
제목 LiMn2O4 particles prepared from nano-sized manganese oxide
초록 Lithium manganese oxide (LiMn2O4) is an important cathode material used in lithium secondary batteries. The electrochemical performance of the cathode material in lithium secondary battery is strongly affected by the properties of the particles, such as morphology, specific surface area, crystallinity and phase homogeneity. In recent years, nano-sized cathode materials have been investigated to achieve the high capacity in lithium secondary batteries. The nano-sized cathode materials had high capacity because of high surface area and the raised lithium intercalation efficiency. Nano-sized cathode materials were prepared by various liquid solution methods. In this work, nano-sized LiMn2O4 particles were prepared by conventional solid-state reaction method. Nano-sized Mn2O3 particles with uniform morphology and narrow size distribution obtained by spray pyrolysis were used as the source of the manganese component. The submicron size LiMn2O4 particles had slightly aggregated morphology and narrow size distribution even without milling process. The discharge capacity of the submicron size LiMn2O4 particles prepared by solid state reaction method was 120 mAh/g.
저자 주서희, 김도엽, 구혜영, 홍승권, 조은별, 강윤찬
소속 건국대
키워드 LiMn2O4; nano particle; spray pyrolysis
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