Carbon Electrodes for K-Ion Batteries

Journal of the American Chemical Society
Zelang JianXiulei Ji

Abstract

We for the first time report electrochemical potassium insertion in graphite in a nonaqueous electrolyte, which can exhibit a high reversible capacity of 273 mAh/g. Ex situ XRD studies confirm that KC36, KC24, and KC8 sequentially form upon potassiation, whereas depotassiation recovers graphite through phase transformations in an opposite sequence. Graphite shows moderate rate capability and relatively fast capacity fading. To improve the performance of carbon K-ion anodes, we synthesized a nongraphitic soft carbon that exhibits cyclability and rate capability much superior to that of graphite. This work may open up a new paradigm toward rechargeable K-ion batteries.

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Citations

Nov 10, 2015·ACS Applied Materials & Interfaces·William D McCullochYiying Wu
Jul 29, 2016·ACS Applied Materials & Interfaces·Zhicheng JuYitai Qian
Aug 4, 2016·ACS Applied Materials & Interfaces·Zhenyu XingXiulei Ji
Oct 8, 2016·ACS Applied Materials & Interfaces·Ali EftekhariXiulei Ji
Jan 27, 2017·Journal of the American Chemical Society·Leigang XueJohn B Goodenough
Feb 18, 2017·Journal of the American Chemical Society·Wenchao ZhangZaiping Guo
May 10, 2017·ACS Applied Materials & Interfaces·Ryan A AdamsVilas G Pol
Mar 16, 2017·Advanced Materials·Bifa JiYongbing Tang
Apr 19, 2017·Angewandte Chemie·Yun-Hai ZhuXin-Bo Zhang
Oct 27, 2016·Advanced Materials·Dawei SuGuoxiu Wang
Sep 9, 2016·Angewandte Chemie·Qing ZhaoJun Chen
Dec 15, 2015·Physical Chemistry Chemical Physics : PCCP·Vladislav IvaništševMaxim V Fedorov
Jul 14, 2017·Chemical Communications : Chem Comm·Yongling AnJinkui Feng
Apr 13, 2018·Chemical Communications : Chem Comm·Chao LiHongyu Wang
Apr 19, 2018·Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry·José Manuel Vicent-LunaJuan Antonio Anta
Feb 15, 2018·Chemical Record : an Official Publication of the Chemical Society of Japan ... [et Al.]·Kei KubotaShinichi Komaba
Apr 14, 2016·Physical Chemistry Chemical Physics : PCCP·Di WangLiqiang Mai
Oct 7, 2016·Chemical Communications : Chem Comm·Jin HanMaowen Xu
Oct 7, 2016·Chemical Communications : Chem Comm·Jin HanChang Ming Li
Sep 7, 2017·Physical Chemistry Chemical Physics : PCCP·Pan XiangKuisen Deng
Jul 13, 2018·Chemical Communications : Chem Comm·Tomooki HosakaShinichi Komaba
Aug 8, 2017·Advanced Materials·Haegyeom KimGerbrand Ceder
Oct 3, 2018·Chemical Communications : Chem Comm·Qian LiuBingan Lu
Nov 6, 2018·Nano-micro Letters·Santanu MukherjeeGurpreet Singh
Oct 27, 2018·Advanced Materials·Ling FanBingan Lu

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