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    Ordered Mesoporous Carbon-MoO2 Nanocomposite as High Performance Anode Material in Lithium Ion Batteries
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    2020-05-11      조회 2,258   댓글 0  
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    Author Yuanyuan Zhou, Ilbok Lee, Chul Wee Lee, Han Soo Park, Hyungbin Son, Songhun Yoon
    Journal Bulletin of the Korean Chemical Society
    Year of Pub. 2014


    Recently, many efforts have been made in order to develop advanced anode materials in lithium ion batteries (LIBs). Particularly, transition-metal oxides, such as TiO2, Fe2O3, CoO and WO3-x, have been intensively investigated as promising anode candidates for LIBs. It has been reported that such materials have the merits as anodes in LIB, such as cheap material cost, high capacity and high material density. 1 Because of intrinsically low electric conductivity of these metal oxides, however, nanocomposite formation with carbon has been tried in order to provide better electrical pathway through carbon phase. 2, 17, 19, 20 Especially, nanocomposites between transient metal oxides and ordered mesoporous carbon (OMC) have become more attractive due to their beneficial characteristics: i) abundant lithium storage sites and fast lithium diffusion in nanosized metal oxides and OMC; ii) facile electrolyte penetration owing to ordered mesopores iii) higher electric conductivity through carbon framework. 2, 17, 19, 20

    As a novel metal-oxide anode candidate, molybdenum oxides (MoOx, x= 2-3), which possess a theoretical specific capacity of 840-1100 mAh g–1 based on the mechanism of conversion reaction, have attracted considerable interest as anode material materials in LIBs. 3, 4 However, it has been elucidated that in bulk MoOx electrodes, only addition-type lithium storage reaction happens rather than conversion reaction, which leads to quite limited specific capacity and their intrinsically low electric and ionic conductivity retards their rate performance. 4, 5 Accordingly, nanos 

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    이전글 리튬이차전지 양극재인 유기라디칼 고분자의 산화법에 대한 연구
    다음글 Investigation of Oxidation Methods of Organic Radical Polymer for Cathode Material in Lithium Ion Batteries