Highly-rough surface carbon nanofibers film as an effective interlayer for lithium–sulfur batteries

查看全文 作　　者：Hongfan [1]Zhu;Mo [1,2]Sha;Huaping [2]Zhao;Yuting [1]Nie;Xuhui [1]Sun;Yong [2]Lei

机构地区：[1]Institute of Functional Nano and Soft Materials(FUNSOM),Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices,Collaborative Innovation Centre of Suzhou Nano Science and Technology,Soochow University,Suzhou 215123,China;[2]Fachgebiet Angewandte Nanophysik,Institut für Physik&IMN MacroNano®(ZIK),Technische Universität Ilmenau,Ilmenau 98693,Germany

出　　处：《Journal of Semiconductors》索引2020年第41卷第9期,共6页

基　　金：the Natural Science Foundation of China(NSFC)(Grant No.U1432249,21203130);the Priority Academic Program Development of Jiangsu Higher Education Institutions(PAPD);This work was also supported by the German Research Foundation(DFG:LE2249/5-1). 摘　　要：Lithium–sulfur(Li–S)battery with a new configuration is demonstrated by inserting a flexible nitrogen-doping carbon nanofiber(N-CNFs)interlayer between the sulfur cathode and the separator.The N-CNFs film with high surface roughness and surface area is fabricated by electrospinning and a subsequent calcination process.The N-CNFs film interlayer not only effectively traps the shuttling migration of polysulfides but also gives the whole battery reliable electronic conductivity,which can effectively enhance the electrochemical performance of Li–S batteries.Finally,Li–S batteries with long cycling stability of 785 mAh/g after 200 cycles and good rate capability of 573 mAh/g at 5 C are achieved. 关键词：INTERLAYER N-CNFs Li–S battery ELECTROSPINNING

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Highly-rough surface carbon nanofibers film as an effective interlayer for lithium–sulfur batteries

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