Nano‐Scale ZrN Film Modified Zn Anode with Ultra‐Long Cycle Life Over 5000 H

Small, Journal Year: 2025, Volume and Issue: unknown

Published: March 21, 2025

Dendrite growth, corrosion, and hydrogen evolution are major issues for Zn anodes, which seriously hinder the further practical application of aqueous zinc-ion batteries. To address these issues, Zirconium Nitride (ZrN) layer with a thickness 110 nm is uniformly deposited on surface anode using plasma-enhanced atomic deposition (PE-ALD). In/ex situ characterizations verify that as-introduced ZrN has excellent anticorrosive zincophilic ability, can suppress corrosion evolution, lower nucleation energy barrier Zn2+ deposition, effectively inhibit dendrite growth. Theoretical calculations also reveal exhibits significantly higher adsorption capacity compared to bare Zn, conducive regulating behavior. This innovative interface extends battery cycle life enhances coulombic efficiency. Encouragingly, under current density 5 mA cm-2 areal 1 mAh cm-2, Zn@ZrN symmetrical cells demonstrate an extraordinary cycling up 5000 h, surpassing other reported anodes modified by films/coatings. In addition, it impressive 1200 h at cm-2. The full Zn@ZrN||MnO2 retain high after 1000 cycles, markedly outperforming conventional Zn||MnO2

Language: Английский

Unlocking the effect of alkyl chain length and hydroxyl group of electrolyte additives enabling stabilization of zinc anodes

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 163910 - 163910

Published: May 1, 2025

Language: Английский

Designing vertical aligned Zn microchannels for enhanced performance of Zn metal anodes

FlatChem, Journal Year: 2025, Volume and Issue: unknown, P. 100870 - 100870

Published: May 1, 2025

Language: Английский