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Tuning Vertical Electrodeposition for Dendrites-Free Zinc-Ion Batteries

  • Jin Cao (Co-first Author)
  • , Mingzi Sun (Co-first Author)
  • , Dongdong Zhang (Co-first Author)
  • , Yuefeng Zhang
  • , Chengwu Yang
  • , Ding Luo
  • , Xuelin Yang*
  • , Xinyu Zhang
  • , Jiaqian Qin*
  • , Bolong Huang*
  • , Zhiyuan Zeng*
  • , Jun Lu*
  • *Corresponding author for this work

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

Abstract

Manipulating the crystallographic orientation of zinc deposition is recognized as an effective approach to address zinc dendrites and side reactions for aqueous zinc-ion batteries (ZIBs). We introduce 2-methylimidazole (Mlz) additive in zinc sulfate (ZSO) electrolyte to achieve vertical electrodeposition with preferential orientation of the (100) and (110) crystal planes. Significantly, the zinc anode exhibited long lifespan with 1500 h endurance at 1 mA cm-2 and an excellent 400 h capability at a depth of discharge (DOD) of 34% in Zn||Zn battery configurations, while in Zn||MnO2 battery assemblies, a capacity retention of 68.8% over 800 cycles is attained. Theoretical calculation reveals that the strong interactions between Mlz and (002) plane impeding its growth, while Zn atoms exhibit lower migration energy barrier and superior mobility on (100) and (110) crystal planes guaranteed the heightened mobility of zinc atoms on the (100) and (110) crystal planes, thus ensuring their superior ZIB performance than that with only ZSO electrolyte, which offers a route for designing next-generation high energy density ZIB devices. © 2024 American Chemical Society.
Original languageEnglish
Pages (from-to)16610-16621
JournalACS Nano
Volume18
Issue number26
Online published18 Jun 2024
DOIs
Publication statusPublished - 2 Jul 2024

Funding

Z.Y. Zeng thanks the Young Collaborative Research Grant [Project No. C1003-23Y] and General Research Fund (GRF) [Project No. CityU11308923] support from the Research Grants Council of the Hong Kong Special Administrative Region, China, the Basic Research Project [No. JCYJ20210324134012034] from Shenzhen Science and Technology Innovation Committee in Shenzhen, China. X. L. Yang thanks the National Key R&D Program of China (2022YFB3807700), the Major Technological Innovation Project of Hubei Science and Technology Department (2019AAA164), and Joint Funds of the Hubei Natural Science Foundation Innovation and Development (2022CFD034). J. Cao thanks the Hubei Provincial Natural Science Foundation of China (2023AFB155). J. Qin thanks National Research Council of Thailand (NRCT) and Chulalongkorn University (N42A660383), the National Science, Research and Innovation Fund (NSRF) via the Program Management Unit for Human Resources & Institutional Development, Research and Innovation (B05F640153). B. Huang gratefully acknowledges the support from the National Key R&D Program of China (2021YFA1501101), the National Natural Science Foundation of China/Research Grant Council of Hong Kong Joint Research Scheme (N_PolyU502/21), National Natural Science Foundation of China/Research Grants Council (RGC) of Hong Kong Collaborative Research Scheme (CRS_PolyU504_22).

Research Keywords

  • 2-methylimidazole
  • crystallographic orientation
  • dendrites
  • electrodeposition
  • zinc-ion batteries

RGC Funding Information

  • RGC-funded

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