A new Tin-based O3-Na_(0.9)[Ni_(0.45-x/2)Mn_xSn_(0.55-x/2)]O_2 as sodium-ion battery cathode

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英文篇名：A new Tin-based O3-Na_(0.9)[Ni_(0.45-x/2)Mn_xSn_(0.55-x/2)]O_2 as sodium-ion battery cathode 作者：Xiaohui ; Rong ; Xingguo ; Qi ; Yaxiang ; Lu ; Yuesheng ; Wang ; Yunming ; Li ; Liwei ; Jiang ; Kai ; Yang ; Fei ; Gao ; Xuejie ; Huang ; Liquan ; Chen ; Yong-Sheng ; Hu 英文作者：Xiaohui Rong;Xingguo Qi;Yaxiang Lu;Yuesheng Wang;Yunming Li;Liwei Jiang;Kai Yang;Fei Gao;Xuejie Huang;Liquan Chen;Yong-Sheng Hu;State Key Laboratory of Operation and Control of Renewable Energy and Storage Systems, China Electric Power Research Institute;Key Laboratory for Renewable Energy, Beijing Key Laboratory for New Energy Materials and Devices, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, School of Physical Sciences, University of Chinese Academy of Sciences; 英文关键词：Sodium-ion batteries;;Layered oxide cathode;;Tin-based cathode 中文刊名：TRQZ 英文刊名：能源化学(英文版) 机构：State Key Laboratory of Operation and Control of Renewable Energy and Storage Systems, China Electric Power Research Institute;Key Laboratory for Renewable Energy, Beijing Key Laboratory for New Energy Materials and Devices, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, School of Physical Sciences, University of Chinese Academy of Sciences; 出版日期：2019-04-04 出版单位：Journal of Energy Chemistry 年：2019 期：v.31 基金：supported by funding from the Science and Technology Project of the State Grid Corporation of China (“research on key technology of low-strain layered oxides for long-life sodium-ion batteries”, DG71-16-027) 语种：英文; 页：TRQZ201904016 页数：6 CN：04 ISSN：10-1287/O6 分类号：140-145

摘要

Recently,sodium-ion batteries(SIBs),regarded as promising supplements for lithium-ion batteries(LIBs),especially in the large-scale energy storage field,are attracting more and more attention.However,the limited suitable cathode materials hinder the wide commercialization of SIBs.Given this aspect,in this work,a new layered oxide with 4d metal Tin was synthesized and investigated as cathode material for SIBs.Two optimized sodium-deficient O3-Na_(0.9)Ni_(0.45)Sn_(0.55)O_2and O3-Na_(0.9)Ni_(0.4)Mn_(0.1)Sn_(0.5)O_2were selected for comprehensive investigation,both of which exhibited high operating voltage of around 3.45 V with smooth charge/discharge curves.In comparison,O3-Na_(0.9)Ni_(0.4)Mn_(0.1)Sn_(0.5)O_2shows a higher reversible capacity(65 m A h/g,0.1 C),better rate capability and cycling stability than that of O3-Na_(0.9)Ni_(0.45)Sn_(0.55)O_2(50 mA h/g,0.1 C),indicating that a small amount of Mn-substitution can improve the electrochemical performance.This work presents a new possibility of discovering potential cathode candidates by exploring the Tin-based layered oxides.
        Recently,sodium-ion batteries(SIBs),regarded as promising supplements for lithium-ion batteries(LIBs),especially in the large-scale energy storage field,are attracting more and more attention.However,the limited suitable cathode materials hinder the wide commercialization of SIBs.Given this aspect,in this work,a new layered oxide with 4d metal Tin was synthesized and investigated as cathode material for SIBs.Two optimized sodium-deficient O3-Na_(0.9)Ni_(0.45)Sn_(0.55)O_2and O3-Na_(0.9)Ni_(0.4)Mn_(0.1)Sn_(0.5)O_2were selected for comprehensive investigation,both of which exhibited high operating voltage of around 3.45 V with smooth charge/discharge curves.In comparison,O3-Na_(0.9)Ni_(0.4)Mn_(0.1)Sn_(0.5)O_2shows a higher reversible capacity(65 m A h/g,0.1 C),better rate capability and cycling stability than that of O3-Na_(0.9)Ni_(0.45)Sn_(0.55)O_2(50 mA h/g,0.1 C),indicating that a small amount of Mn-substitution can improve the electrochemical performance.This work presents a new possibility of discovering potential cathode candidates by exploring the Tin-based layered oxides.

引文

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