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首页> 外文期刊>Journal of Materials Research >Electrochemical and ex-situ analysis on manganese oxide/graphene hybrid anode for lithium rechargeable batteries
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Electrochemical and ex-situ analysis on manganese oxide/graphene hybrid anode for lithium rechargeable batteries

机译：锂二次电池锰氧化物/石墨烯混合阳极的电化学和非原位分析

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摘要

A Mn_3O_4/graphene hybrid material is fabricated using a facile and simple in-situ reduction process and shown to be a promising anode for lithium rechargeable batteries. The hybrid material retains a high capacity with a good cycle life of up to 990 mAh g~(-1) after 30 cycles. The excellent electrochemical performance is attributable to the unique nanostructure of the hybrid material. Highly crystalline Mn_3O_4 particles (20-30 nm) are uniformly dispersed on graphene whose high electronic conductivity and high surface area provide a conductive percolating network throughout the electrode in the hybrid material. The conductive graphene networks enhance an electron transfer in the electrode and promote the electrochemical activity of the crystalline Mn_3O_4.
机译：Mn_3O_4 /石墨烯杂化材料是使用便捷且简单的原位还原工艺制造的，被证明是锂可充电电池的有希望的阳极。该杂化材料保留了高容量，在30个循环后具有高达990 mAh g〜（-1）的良好循环寿命。优异的电化学性能归因于杂化材料的独特纳米结构。高度结晶的Mn_3O_4颗粒（20-30 nm）均匀地分散在石墨烯上，石墨烯的高电子电导率和高表面积为混合材料中整个电极提供了导电渗滤网络。导电石墨烯网络增强了电极中的电子转移，并促进了晶体Mn_3O_4的电化学活性。

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  • 来源
    《Journal of Materials Research》 |2011年第20期|p.2665-2671|共7页
  • 作者

    Haegyeom Kim; Sung-Wook Kim; Jihyun Hong; Young-Uk Park; Kisuk Kang;

  • 作者单位

    Department of Materials Science and Engineering, Seoul National University, Seoul 151-742, Republic of Korea;

    Research Institute of Advanced Materials, Seoul National University, Seoul 151-742, Republic of Korea;

    Department of Materials Science and Engineering, Seoul National University, Seoul 151-742, Republic of Korea;

    Department of Materials Science and Engineering, Seoul National University, Seoul 151-742, Republic of Korea;

    Department of Materials Science and Engineering, Seoul National University, Seoul 151-742, Republic of Korea;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
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  • 正文语种 eng
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