Insights into Three-dimensional Dendrite-free Zinc Anode on Copper Mesh with Zinc-oriented Polyacrylamide Electrolyte Additive.

By Qi Zhang, Jingyi Luan, L. Fu, Shengan Wu, You-gen Tang, Xiaobo Ji, Hai-yan Wang. Angewandte Chemie, 2019

686 citations recorded by the source corpus.

Rechargeable aqueous zinc-ion batteries have been considered as a promising candidate for next-generation batteries. However, the formation of zinc dendrites are the most severe problems limiting their practical applications. To develop stable zinc metal anodes, we first report a synergistic method combining Cu-Zn solid solution interface on copper mesh skeleton with good zinc affinity and polyacrylamide electrolyte additive to modify the zinc anode, which can greatly reduce the overpotential of the zinc nucleation and increase the stability of zinc deposition. The as-prepared zinc anodes show a dendrite-free plating/stripping behavior in a wide range of current densities. The symmetric cell using this dendrite-free anode can be cycled for more than 280 h with a very low voltage hysteresis (93.1 mV) at the discharge depth of 80%. The high capacity retention and low polarization are also realized in Zn/MnO2 full cells.

Subfields: Electrical and Electronic Engineering, Polymers and Plastics

View Paper: https://www.semanticscholar.org/paper/5e625205e2261deb13136250f4bb2b9ae78665fe

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In Electrical and Electronic Engineering

Citations in the corpus

Alleviation of Dendrite Formation on Zinc Anodes via Electrolyte Additives (2021, background): “Zinc-based batteries, which use zinc as the anode, include zinc–air batteries and zinc-based flow batteries have been studied widely due to their versatility.(3-7) Zinc has a relatively high capacity density (5855 mAh cm), low cost, operational safety and is relatively non-toxic compared with other ”