Synchronous organic-inorganic co-intercalated ammonium vanadate cathode for advanced aqueous zinc-ion batteries  

作　　者：Wenpei Kang Bingchen Zhang Zhurui Wang Zhengchunyu Zhang Mang Niu Xuguang An Zhenkai Mou Xiaoyu Fan Xuqiang Hu Baojuan Xi Shenglin Xiong 

机构地区：[1]School of Materials Science and Engineering,China University of Petroleum(East China),Qingdao 266580,Shandong,China [2]School of Chemistry and Chemical Engineering,Shandong University,Jinan 250100,Shandong,China [3]State Key Laboratory of Bio-fibers and Eco-textiles,Institute of Biochemical Engineering College of Materials Science and Engineering,Qingdao University,Qingdao 266071,Shandong,China [4]School of Mechanical Engineering,Chengdu University,Chengdu 610106,Sichuan,China Received 1 February 2024,Revised 1 March

出　　处：《Journal of Energy Chemistry》2024年第7期608-617,共10页能源化学（英文版）

基　　金：financially supported by the National Natural Science Foundation of China(U21A2077);the Taishan Scholar Project Foundation of Shandong Province(ts20190908);the Natural Science Foundation of Shandong Province(ZR2022MB084 and ZR2021ZD05).

摘　　要：Vanadium-based cathode materials are attractive for aqueous zinc-ion batteries(AZIBs)owing to the high capacity from their open frameworks and multiple valences.However,the cycle stability and rate capability are still restricted by the low electrical conductivity and trapped diffusion kinetics.Here,we propose an organic-inorganic co-intercalation strategy to regulate the structure of ammonium vanadate(NH_(4)V_(4)O_(10),NVO).The introduction of Al^(3+)and polyaniline(PANI)induces the optimized layered structure and generation of urchin-like hierarchical construction(AP-NVO),based on heterogeneous nucleation and dissolution-recrystallization growth mechanism.Owing to these favorable features,the AP-NVO electrode delivers a desirable discharge capacity of 386 mA h g^(-1) at 1.0 A g^(-1),high-rate capability of 263 mA h g^(-1 )at 5.0 A g^(-1) and excellent cycling stability with 80.4%capacity retention over 2000 cycles at 5.0 A g^(-1).Such satisfactory electrochemical performance is believed to result from the enhanced reaction kinetics provided by the stable layered structure and a high intercalation pseudo-capacitance reaction.These results could provide enlightening insights into the design of layered vanadium oxide cathodematerials.

关 键 词：Ammonium vanadate bronze Co-pre-intercalation Urchin-like hierarchical structure Aqueous zinc-ion batteries 

分 类 号：TM912[电气工程—电力电子与电力传动]