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

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外文摘要：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(NH4V4O10,NVO).The introduction of Al3+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 capabil-ity 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 cathode materials.

外文关键词：

Ammonium vanadate bronzeCo-pre-intercalationUrchin-like hierarchical structureAqueous 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

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作者单位：

School of Materials Science and Engineering,China University of Petroleum(East China),Qingdao 266580,Shandong,China

School of Chemistry and Chemical Engineering,Shandong University,Jinan 250100,Shandong,China

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

School of Mechanical Engineering,Chengdu University,Chengdu 610106,Sichuan,China

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基金：

National Natural Science Foundation of ChinaTaishan Scholar Project Foundation of Shandong ProvinceNatural Science Foundation of Shandong ProvinceNatural Science Foundation of Shandong Province

项目编号：

U21A2077ts20190908ZR2022MB084ZR2021ZD05

出版年：

2024

DOI：

10.1016/j.jechem.2024.03.008

能源化学

中国科学院大连化学物理研究所中国科学院成都有机化学研究所

能源化学

CSTPCDEI

影响因子：0.654

ISSN：2095-4956

年,卷(期)：2024.94(7)