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Dendrite-Free Zinc Deposition Induced by Zinc-Phytate Coating for Long-Life Aqueous Zinc Batteries

Du, Leilei ; Hou, Xu LU orcid ; Yang, Xiaofei ; Siozios, Vassilios ; Yan, Bo ; Ju, Xiaokang ; Paillard, Elie ; Winter, Martin ; Placke, Tobias and Li, Jie (2022) In Batteries and Supercaps 5(6).
Abstract

Rechargeable aqueous zinc batteries (AZBs) have been recognized as attractive energy storage devices because of their intrinsic superiorities, e. g., high safety, low material cost and environmental benignity. However, challenges such as dendrite formation on the surface of zinc (Zn) anode, poor reversibility of Zn plating/stripping and short circuit of the cell, having detrimental impact on cycle life and safety, hinder their further development. Herein, we design an artificial solid electrolyte interphase (SEI) layer for the Zn anode by coating it with a zinc-phytate (ZP) layer via a facile acid-etching approach. The symmetric cell with a modified Zn electrode exhibits excellent cycling stability and a low polarization voltage, since... (More)

Rechargeable aqueous zinc batteries (AZBs) have been recognized as attractive energy storage devices because of their intrinsic superiorities, e. g., high safety, low material cost and environmental benignity. However, challenges such as dendrite formation on the surface of zinc (Zn) anode, poor reversibility of Zn plating/stripping and short circuit of the cell, having detrimental impact on cycle life and safety, hinder their further development. Herein, we design an artificial solid electrolyte interphase (SEI) layer for the Zn anode by coating it with a zinc-phytate (ZP) layer via a facile acid-etching approach. The symmetric cell with a modified Zn electrode exhibits excellent cycling stability and a low polarization voltage, since the ZP layer can guide uniform Zn deposition under the layer without dendrite formation and maintain a smooth interface between separator and electrode, which suggests Zn2+ transport properties of the coating layer. Moreover, comparing full cells, one employing a bare Zn anode (MnO2/carbon nanofibers (CNFs)||Zn), with the other with a modified Zn anode (MnO2/CNFs||ZP−Zn), the MnO2/CNFs||ZP−Zn cell delivers much better long-term cycling stability (capacity retention after 1000 cycles of 130 mAh g−1 vs. 50 mAh g−1 at a specific current of 0.5 A g−1). The coating via acid etching method offers a new powerful technique for further development of practical AZBs.

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author
; ; ; ; ; ; ; ; and
publishing date
type
Contribution to journal
publication status
published
keywords
aqueous zinc batteries, surface modification, zinc dendrite, zinc phytate
in
Batteries and Supercaps
volume
5
issue
6
article number
e202100376
publisher
Wiley-Blackwell
external identifiers
  • scopus:85127297352
ISSN
2566-6223
DOI
10.1002/batt.202100376
language
English
LU publication?
no
additional info
Publisher Copyright: © 2022 The Authors. Batteries & Supercaps published by Wiley-VCH GmbH.
id
23165139-8da7-4312-8ec4-3f51d700bfdf
date added to LUP
2025-12-05 22:33:30
date last changed
2025-12-11 14:42:30
@article{23165139-8da7-4312-8ec4-3f51d700bfdf,
  abstract     = {{<p>Rechargeable aqueous zinc batteries (AZBs) have been recognized as attractive energy storage devices because of their intrinsic superiorities, e. g., high safety, low material cost and environmental benignity. However, challenges such as dendrite formation on the surface of zinc (Zn) anode, poor reversibility of Zn plating/stripping and short circuit of the cell, having detrimental impact on cycle life and safety, hinder their further development. Herein, we design an artificial solid electrolyte interphase (SEI) layer for the Zn anode by coating it with a zinc-phytate (ZP) layer via a facile acid-etching approach. The symmetric cell with a modified Zn electrode exhibits excellent cycling stability and a low polarization voltage, since the ZP layer can guide uniform Zn deposition under the layer without dendrite formation and maintain a smooth interface between separator and electrode, which suggests Zn<sup>2+</sup> transport properties of the coating layer. Moreover, comparing full cells, one employing a bare Zn anode (MnO<sub>2</sub>/carbon nanofibers (CNFs)||Zn), with the other with a modified Zn anode (MnO<sub>2</sub>/CNFs||ZP−Zn), the MnO<sub>2</sub>/CNFs||ZP−Zn cell delivers much better long-term cycling stability (capacity retention after 1000 cycles of 130 mAh g<sup>−1</sup> vs. 50 mAh g<sup>−1</sup> at a specific current of 0.5 A g<sup>−1</sup>). The coating via acid etching method offers a new powerful technique for further development of practical AZBs.</p>}},
  author       = {{Du, Leilei and Hou, Xu and Yang, Xiaofei and Siozios, Vassilios and Yan, Bo and Ju, Xiaokang and Paillard, Elie and Winter, Martin and Placke, Tobias and Li, Jie}},
  issn         = {{2566-6223}},
  keywords     = {{aqueous zinc batteries; surface modification; zinc dendrite; zinc phytate}},
  language     = {{eng}},
  number       = {{6}},
  publisher    = {{Wiley-Blackwell}},
  series       = {{Batteries and Supercaps}},
  title        = {{Dendrite-Free Zinc Deposition Induced by Zinc-Phytate Coating for Long-Life Aqueous Zinc Batteries}},
  url          = {{http://dx.doi.org/10.1002/batt.202100376}},
  doi          = {{10.1002/batt.202100376}},
  volume       = {{5}},
  year         = {{2022}},
}