An insight into failure mechanism of NASICON-structured Na3V2(PO4)3 in hybrid aqueous rechargeable battery

查看全文 作　　者：Xinxin [1,2]Zhang;Jun [2]Ma;Pu [2,3]Hu;Bingbing [2]Chen;Chenglong [1,2]Lu;Xinhong [1]Zhou;Pengxian [2]Han;Lihua [1]Chen;Guanglei [2]Cui

机构地区：[1]College of Chemistry and Molecular Engineering,Qingdao University of Science & Technology,Qingdao 266042,Shandong,China;[2]Qingdao Industrial Energy Storage Research Institute,Qingdao Institute of Bioenergy and Bioprocess Technology,Chinese Academy of Sciences,Qingdao 266101,Shandong,China;[3]Department of Mechanical & Areospace Engineering,University of Florida,Gainesville 32611,FL,USA

出　　处：《Journal of Energy Chemistry》索引2019年第28卷第5期,共7页

基　　金：financially supported by'135'Projects Fund of CAS-QIBEBT Director Innovation Foundation;the Strategic Priority Research Program of the Chinese Academy of Sciences(Grant no.XDA09010105);the National Natural Science Foundation of China(Grant no.51502319);the Think-Tank Mutual Fund of Qingdao Energy Storage Industry Scientific Research;the Qingdao Science and Technology Program(17-1-1-26-jch);the Youth Innovation Promotion Association CAS(No.2017253);Qingdao Key Lab of Solar Energy Utilization&Energy Storage Technology 摘　　要：NASICON (Na-super-ionic-conductors)-structured materials have attracted extensive research interest due to their great application potential in secondary batteries. However, the mechanism of capacity fading for NASICON-structured electrode materials has been rarely studied. In this paper, we synthesized the NASICON-structured Na3V2(PO4)3/C composite by simple sol-gel and high-temperature solid-phase method and investigated its electrochemical performance in Na-Zn hybrid aqueous rechargeable batteries. After characterizing the structure, morphology and composition variations as well as the interfacial resistance changes of Na3V2(PO4)3/C cathode during cycling, we propose a mechanical and interfacial degradation mechanism for capacity fading of NASICON-structured Na3V2(PO4)3/C in Na-Zn hybrid aqueous rechargeable batteries. This work will shed light on enhancing the mechanical and in terfacial stability of NASICON-structured Na3V2(PO4)3/C in Na-Zn hybrid aqueous rechargeable batteries. 关键词：Mechanical degradation Na3V2(PO4)3 Zn metal ANODE HYBRID AQUEOUS battery Failure mechanism

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An insight into failure mechanism of NASICON-structured Na3V2(PO4)3 in hybrid aqueous rechargeable battery

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