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首页> 外文期刊>Journal of power sources >Three-dimensional sandwich-structured NiMn_2O_4@reduced graphene oxide nanocomposites for highly reversible Li-ion battery anodes
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Three-dimensional sandwich-structured NiMn_2O_4@reduced graphene oxide nanocomposites for highly reversible Li-ion battery anodes

机译：高度可逆的锂离子电池阳极的三维三明治结构的NiMn_2O_4 @还原氧化石墨烯纳米复合材料

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摘要

A sandwich-structured NiMn2O4@reduced graphene oxide (NiMn2O4@rGO) nanocomposite consisting of ultrathin NiMn2O4 sheets uniformly anchored on both sides of a three-dimensional (3D) porous rGO is presented. The NiMn2O4@rGO nanocomposites prepared through a dipping process combining with a hydrothermal method show a good electrochemical performance including a high reversible capability of 1384 mAh g(-1) at 1000 mA g(-1) over 1620 cycles, and an superior rate performance. Thus, a full cell consisting of a commercial LiCoO2 cathode and the NiMn2O4@rGO anode delivers a stable capacity of about 1046 mAh g(-1) (anode basis) after cycling at 50 mA g(-1) for 60 times, It is demonstrated that the 3D porous composite structure accommodates the volume change during the Li+ insertion/extraction process and facilitates the rapid transport of ions and electrons. The high performance would enable the presented NiMn2O4@rGO nanocomposite a promising anode candidate for practical applications in Li-ion batteries.
机译：提出了一种三明治结构的NiMn2O4还原氧化石墨烯（NiMn2O4 @ rGO）纳米复合材料，该复合材料由均匀地锚固在三维（3D）多孔rGO两侧的超薄NiMn2O4薄片组成。通过浸渍工艺与水热法相结合制备的NiMn2O4 @ rGO纳米复合材料表现出良好的电化学性能，包括在1620个循环中在1000 mA g（-1）时具有1384 mAh g（-1）的高可逆能力。 。因此，由市售LiCoO2阴极和NiMn2O4 @ rGO阳极组成的全电池在50 mA g（-1）下循环60次后，可提供约1046 mAh g（-1）（阳极）的稳定容量，证明了3D多孔复合结构可适应Li +插入/萃取过程中的体积变化，并促进离子和电子的快速传输。高性能将使提出的NiMn2O4 @ rGO纳米复合材料成为锂离子电池实际应用中有希望的阳极候选材料。

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  • 来源
    《Journal of power sources》 |2018年第28期|677-684|共8页
  • 作者

    Huang Jiarui; Wang Wei; Lin Xirong; Gu Cuiping; Liu Jinyun;

  • 作者单位

    Anhui Normal Univ, Coll Chem & Mat Sci, Ctr Nano Sci & Technol, Key Lab Funct Mol Solids,Minist Educ, Wuhu 241002, Peoples R China;

    Anhui Normal Univ, Coll Chem & Mat Sci, Ctr Nano Sci & Technol, Key Lab Funct Mol Solids,Minist Educ, Wuhu 241002, Peoples R China;

    Anhui Normal Univ, Coll Chem & Mat Sci, Ctr Nano Sci & Technol, Key Lab Funct Mol Solids,Minist Educ, Wuhu 241002, Peoples R China;

    Anhui Normal Univ, Coll Chem & Mat Sci, Ctr Nano Sci & Technol, Key Lab Funct Mol Solids,Minist Educ, Wuhu 241002, Peoples R China;

    Anhui Normal Univ, Coll Chem & Mat Sci, Ctr Nano Sci & Technol, Key Lab Funct Mol Solids,Minist Educ, Wuhu 241002, Peoples R China;

  • 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);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    NiMn2O4; Graphene; Nanocomposite; Lithium ion battery; Anode;

    机译：NiMn2O4;石墨烯;纳米复合材料;锂离子电池;阳极;

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