文献类型：期刊文献

英文题名：Study of Quaternary Ammonium Additives towards High-Rate Zinc Deposition and Dissolution Cycling for Application in Zinc-Based Rechargeable Batteries

作者：Qiu, Kaipei[1,4];Trudgeon, David[1];Li, Xiaohong[1];Yufit, Vladimir[2];Chakrabarti, Barun[2];Brandon, Nigel[2];Shah, Akeel[3]

机构：[1]Univ Exeter, Coll Engn Math & Phys Sci, Renewable Energy Grp, Penryn Campus, Exeter TR10 9FE, Devon, England;[2]Imperial Coll London, Royal Sch Mines, Dept Earth Sci & Engn, London SW7 2AZ, England;[3]Chongqing Univ, MOE, Key Lab Low Grade Energy Utilizat Technol & Syst, Chongqing 400030, Peoples R China;[4]East China Univ Sci & Technol, Sch Resources & Environm Engn, State Environm Protect Key Lab Environm Risk Asse, 130 Meilong Rd, Shanghai 200237, Peoples R China

年份：2022

卷号：8

期号：9

外文期刊名：BATTERIES-BASEL

收录：;EI(收录号：20231213758363);WOS:【SCI-EXPANDED(收录号:WOS:000856235700001)】；

基金：This work is financially supported by the Engineering and Physical Sciences Research Council (EPSRC) project `Zinc-Nickel Redox Flow Battery for Energy Storage' (Ref: EP/P003494/1). The authors would also like to thank Science and Technology Facilities Council (STFC) Futures Early Career Awards for the travel bursaries; the Royal Academy of Engineering UK-Germany Energy Systems Symposium Award (UKDE100005); and Camborne School of Mines (CSM) and Environment and Sustainability Institute (ESI) at University of Exeter (Penryn campus) for the technical support on physical characterizations. For the purpose of open access, the author has applied a `Creative Commons Attribution (CC BY) licence to any Author Accepted Manuscript version arising'.

语种：英文

外文关键词：zinc deposition-dissolution cycling; quaternary ammonium salts; electrolyte additives; aqueous rechargeable batteries; high charge-discharge rates

摘要：Aqueous zinc-based rechargeable batteries, such as Zn-Ni and Zn-Air, have been increasingly re-investigated over the last decade due to the abundant and inexpensive nature of zinc, the high solubility of zinc ions, and rapid kinetics and most negative standard potential of the Zn(II)/Zn redox couple in aqueous media. However, the overwhelming challenge that has prevented the implementation of next-generation Zn batteries lies in their poor rechargeability-flowing electrolytes have proven to be of benefit to zinc deposition and dissolution cycling, but the rapid zinc deposition-dissolution at practical current densities of 100 mA cm(2) or over is still questionable. Herein, we demonstrated that applying an optimal concentration of quaternary ammonium electrolyte additives with carefully selected cations' alkyl groups can effectively improve the high-rate zinc cycling performance at 100 mA cm(2)/20 mAh cm(2). The resultant additives significantly reduced the initial coulombic efficiency loss to only 1.11% with coulombic efficiency decay rate of 0.79% per cycle, which is less than a quarter of the benchmark of 6.25% and 3.75% per cycle for no additives.