TY  - JOUR
AU  - Du, Leilei
AU  - Hou, Xu
AU  - Yang, Xiaofei
AU  - Siozios, Vassilios
AU  - Yan, Bo
AU  - Ju, Xiangkang
AU  - Paillard, Elie
AU  - Winter, Martin
AU  - Placke, Tobias
AU  - Li, Jie
TI  - Dendrite‐Free Zinc Deposition Induced by Zinc Phytate Coating for Long‐life Aqueous Zinc Batteries
JO  - Batteries & supercaps
VL  - 5
IS  - 6
SN  - 2566-6223
CY  - Weinheim
PB  - Wiley-VCH
M1  - FZJ-2022-01488
SP  - e202100376
PY  - 2022
AB  - 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 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. Since the ZP layer can guide uniform Zn deposition under the layer without dendrite formation and maintain a smooth interface between separator and electrode, the symmetric cell with a modified Zn electrode exhibits excellent cycling stability and low polarization voltage. Moreover, compared to the full cell employing a bare Zn anode (MnO 2 /carbon nanofibers (CNFs) || Zn), the one with modified Zn anode (MnO 2 /CNFs || ZP-Zn) delivers much better long-term cycling stability with a capacity retention of 80.2% after 1000 cycles a 0.5 A g -1 . The coating via acid etching method offers a practical technique for further development of AZBs.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000772902700001
DO  - DOI:10.1002/batt.202100376
UR  - https://juser.fz-juelich.de/record/906509
ER  -