A High-Capacity Ammonium Vanadate Cathode for Zinc-Ion Battery

查看全文 作　　者：Qifei [1]Li;Xianhong [1,2]Rui;Dong [1]Chen;Yuezhan [3]Feng;Ni [4]Xiao;Liyong [5]Gan;Qi [1]Zhang;Yan [2,6,7]Yu;Shaoming [1]Huang

机构地区：[1]Guangzhou Key Laboratory of Low-Dimensional Materials and Energy Storage Devices,School of Materials and Energy,Guangdong University of Technology,Guangzhou 510006,People’s Republic of China;[2]Hefei National Laboratory for Physical Sciences at the Microscale,Department of Materials Science and Engineering,CAS Key Laboratory of Materials for Energy Conversion,University of Science and Technology of China,Hefei 230026,People’s Republic of China;[3]Key Laboratory of Materials Processing and Mold(Zhengzhou University),Ministry of Education,Zhengzhou University,Zhengzhou 450002,People’s Republic of China;[4]Aviation Fuel Research and Development Center,China National Aviation Fuel Group Limited,Beijing 102603,People’s Republic of China;[5]Department Institute for Structure and Function and of Physics,Chongqing University,Chongqing 400030,People’s Republic of China;[6]Dalian National Laboratory for Clean Energy(DNL),Chinese Academy of Sciences,Dalian 116023,Liaoning,People’s Republic of China;[7]State Key Laboratory of Fire Science,University of Science and Technology of China,Hefei 230026,People’s Republic of China

出　　处：《Nano-Micro Letters》索引2020年第12卷第5期,共12页

基　　金：the National Key R&D Research Program of China(Grant No.2018YFB0905400);National Natural Science Foundation of China(Grant Nos.51622210,51872277,51802007,21606003,51972067,51802044,51672193,51420105002,51920105004,and U1910210);the Fundamental Research Funds for the Central Universities(WK2060140026);Guangdong Natural Science Funds for Distinguished Young Scholar(Grant No.2019B151502039);the DNL Cooperation Fund,CAS(DNL180310);Opening Project of CAS Key Laboratory of Materials for Energy Conversion. 摘　　要：Given the advantages of being abundant in resources,environmental benign and highly safe,rechargeable zinc-ion batteries(ZIBs)enter the global spotlight for their potential utilization in large-scale energy storage.Despite their preliminary success,zinc-ion storage that is able to deliver capacity>400 mAh g^-1 remains a great challenge.Here,we demonstrate the viability of NH4V4O10(NVO)as high-capacity cathode that breaks through the bottleneck of ZIBs in limited capacity.The first-principles calculations reveal that layered NVO is a good host to provide fast Zn^2+ions diffusion channel along its[010]direction in the interlayer space.On the other hand,to further enhance Zn^2+ion intercalation kinetics and long-term cycling stability,a three-dimensional(3D)flower-like architecture that is self-assembled by NVO nanobelts(3D-NVO)is rationally designed and fabricated through a microwave-assisted hydrothermal method.As a result,such 3D-NVO cathode possesses high capacity(485 mAh g^-1)and superior long-term cycling performance(3000 times)at 10 A g^-1(~50 s to full discharge/charge).Additionally,based on the excellent 3D-NVO cathode,a quasi-solid-state ZIB with capacity of 378 mAh g^-1is developed. 关键词：Zinc-ion BATTERY AMMONIUM VANADATE NH4V4O10

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A High-Capacity Ammonium Vanadate Cathode for Zinc-Ion Battery

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