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首页> 外文期刊>Energy & environmental science >Staging Na/K-ion de-/intercalation of graphite retrieved from spent Li-ion batteries: in operando X-ray diffraction studies and an advanced anode material for Na/K-ion batteries
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Staging Na/K-ion de-/intercalation of graphite retrieved from spent Li-ion batteries: in operando X-ray diffraction studies and an advanced anode material for Na/K-ion batteries

机译：从废锂离子电池回收的石墨的阶段性Na / K离子脱除/插层：在操作X射线衍射研究中和用于Na / K离子电池的先进阳极材料

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摘要

The graphite material from exhausted Li-ion batteries (LIBs) is reused as a favorable anode for Na-ion batteries (NIBs) and K-ion batteries (KIBs) through a recycling treatment. The optimized electrode delivers improved electrochemical performance, such as 162 mA h g(-1) in NIBs at 0.2 A g(-1) and 320 mA h g(-1) in KIBs at 0.05 A g(-1). In addition, the insights into Na/K-ion de-/intercalation model evolution and corresponding electrochemical analysis are conducted through in operando X-ray diffraction and a series of other characterization methods, discovering a visible transitional stage for NIBs and an irreversible initial cycle phase transformation for KIBs. In a word, we not only provide a new recycling concept for waste graphite anodes but also carry out a series of significant intercalation mechanism studies, which contribute to anode recycling and shed light on the development of graphite material for promising alternative ion batteries.
机译：废锂离子电池（LIB）产生的石墨材料经过回收处理后，可作为Na离子电池（NIB）和K离子电池（KIB）的良好阳极再利用。优化的电极可提供改进的电化学性能，例如在0.2 A g（-1）的NIB中为162 mA h g（-1），在0.05 A g（-1）的KIB中为320 mA h g（-1）。此外，通过操作性X射线衍射和其他一系列表征方法，对Na / K离子去离子/插层模型的演化以及相应的电化学分析进行了深入研究，发现了NIB的可见过渡阶段和不可逆的初始循环KIB的相位转换。简而言之，我们不仅为废石墨阳极提供了一种新的回收概念，而且还进行了一系列重要的插层机理研究，这些研究有助于阳极回收，并为开发用于有希望的替代离子电池的石墨材料提供了启示。

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  • 来源
    《Energy & environmental science》 |2019年第12期|3575-3584|共10页
  • 作者

    Liang Hao-Jie; Hou Bao-Hua; Li Wen-Hao; Ning Qiu-Li; Yang Xu; Gu Zhen-Yi; Nie Xue-Jiao; Wang Guang; Wu Xing-Long;

  • 作者单位

    Northeast Normal Univ Fac Chem Natl & Local United Engn Lab Power Batteries Changchun 130024 Jilin Peoples R China;

    Northeast Normal Univ Minist Educ Key Lab UV Light Emitting Mat & Technol Changchun 130024 Jilin Peoples R China;

    Northeast Normal Univ Fac Chem Natl & Local United Engn Lab Power Batteries Changchun 130024 Jilin Peoples R China|Northeast Normal Univ Minist Educ Key Lab UV Light Emitting Mat & Technol Changchun 130024 Jilin Peoples R China;

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