Quasi-Isolated Au Particles as Heterogeneous Seeds to Guide Uniform Zn Deposition for Aqueous Zinc-Ion Batteries

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalNot applicablepeer-review

1 Scopus Citations
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Author(s)

  • Mangwei Cui
  • Yan Xiao
  • Litao Kang
  • Wei Du
  • Yanfeng Gao
  • Xueqin Sun
  • Yanli Zhou
  • Xiangming Li
  • Fuyi Jiang

Detail(s)

Original languageEnglish
Pages (from-to)6490-6496
Journal / PublicationACS Applied Energy Materials
Volume2
Issue number9
Early online date20 Aug 2019
Publication statusPublished - 23 Sep 2019

Abstract

As a promising anode for aqueous batteries, Zn metal shows a number of attractive advantages such as low cost, low redox potential, high capacity, and environmental benignity. Nevertheless, the quick growth of dendrites/protrusions on the "hostless" Zn anodes not only enlarges batteries' internal resistance but also causes sudden shorting failure by piercing separators. Herein, we report a novel heterogeneous seed method to guide the morphology evolution of plated Zn. The heterogeneous seeds are sputtering-deposited quasi-isolated nano-Au particles (Au-NPs) that enable a uniform and stable Zn-plating/stripping process on the anodes. Tested on Zn|Zn symmetric cells, the Au-nanoparticle (NP) decorated Zn anodes (NA-Zn) demonstrate much better cycling stability than the bare ones (92 vs 2000 h). In NA-Zn|CNT/MnO2 batteries, this heterogeneous seed prolongs the lifetime of the device from ∼480 cycles up to 2000 cycles. This work offers a facile and promising Zn dendrite/protrusion suppressing route for the achievement of long-life Zn-ion batteries.

Research Area(s)

  • Au nanoparticle, CNT/MnO2, cycling stability, heterogeneous seed, zinc-ion battery, Zn anode

Citation Format(s)

Quasi-Isolated Au Particles as Heterogeneous Seeds to Guide Uniform Zn Deposition for Aqueous Zinc-Ion Batteries. / Cui, Mangwei; Xiao, Yan; Kang, Litao; Du, Wei; Gao, Yanfeng; Sun, Xueqin; Zhou, Yanli; Li, Xiangming; Li, Hongfei; Jiang, Fuyi; Zhi, Chunyi.

In: ACS Applied Energy Materials, Vol. 2, No. 9, 23.09.2019, p. 6490-6496.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalNot applicablepeer-review