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首页> 外文期刊>RSC Advances >Facile in situ growth of ZnO nanosheets standing on Ni foam as binder-free anodes for lithium ion batteries
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Facile in situ growth of ZnO nanosheets standing on Ni foam as binder-free anodes for lithium ion batteries

机译：Zno Nanosheets的Zno Nanosheets的平面突出为锂离子电池的粘合剂阳极

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摘要

ZnO has attracted increasing attention as an anode for lithium ion batteries. However, the application of such anode materials remains restricted by their poor conductivity and large volume changes during the charge/discharge process. Herein, we report a simple hydrothermal method to synthesize ZnO nanosheets with a large surface area standing on a Ni foam framework, which is applied as a binder-free anode for lithium ion batteries. ZnO nanosheets were grown in situ on Ni foam, resulting in enhanced conductivity and enough space to buffer the volume changes of the battery. The ZnO nanosheets@Ni foam anode showed a high specific capacity (1507 mA h g(-1) at 0.2 A g(-1)), good capacity retention (1292 mA h g(-1) after 45 cycles), and superior rate capacity, which are better than those of ZnO nanomaterial-based anodes reported previously. Moreover, other transition metal oxides, such as Fe2O3 and NiO were also formed in situ on Ni foam with perfect standing nanosheets structures by this hydrothermal method, confirming the universality and efficiency of this synthetic route.
机译：氧化锌已经吸引越来越多的关注，作为锂离子电池的阳极。然而，这样的阳极材料的应用仍然可以通过导电性较差并且在充电/放电过程大的体积变化的限制。此，我们报告一个简单的水热法合成氧化锌纳米片与在Ni泡沫框架，该框架被用作用于锂离子电池的不含粘合剂的阳极的表面积大的信誉。的ZnO纳米片原位生长在镍泡沫，导致增强的导电性和足够的空间来缓冲该电池的体积变化。在ZnO纳米片@镍泡沫阳极（在0.2 A克（-1）1507毫安汞柱（-1）），良好的容量保持率（1292毫安汞柱（-1）后4​​5个循环），和优异的速率容量显示出高的比容量，这比那些基于纳米材料氧化锌阳极更好的报道。此外，其它的过渡金属氧化物，例如以Fe 2 O和NiO也形成在镍泡沫具有完美站立纳米片结构原位由该水热法，证实此合成路线的普遍性和效率。

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  • 来源
    《RSC Advances》 |2019年第34期|共8页
  • 作者

    Xia Tianlai; Wang Yingqian; Mai Chengkang; Pan Guangxing; Zhang Ling; Zhao Weiwei; Zhang Jiaheng;

  • 作者单位

    Harbin Inst Technol State Key Lab Adv Welding &

    Joining Shenzhen 518055 Peoples R China;

    Harbin Inst Technol State Key Lab Adv Welding &

    Joining Shenzhen 518055 Peoples R China;

    Harbin Inst Technol State Key Lab Adv Welding &

    Joining Shenzhen 518055 Peoples R China;

    Harbin Inst Technol State Key Lab Adv Welding &

    Joining Shenzhen 518055 Peoples R China;

    HIT Sch Sci HIT Campus Univ Town Shenzhen Shenzhen 518055 Peoples R China;

    Harbin Inst Technol State Key Lab Adv Welding &

    Joining Shenzhen 518055 Peoples R China;

    Harbin Inst Technol State Key Lab Adv Welding &

    Joining Shenzhen 518055 Peoples R China;

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

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