Electroplating of Ni-W coating on Zn surface for durable Zn ion batteries
Khanothai Choonha-Anothai , Chengwu Yang , Meijing Wang , Zhiqiang Dai , Napat Kiatwisarnkij , Kittima Lolupiman , Xinyu Zhang , Panyawat Wangyao , Jiaqian Qin
Microstructures ›› 2025, Vol. 5 ›› Issue (3) : 2025049
Electroplating of Ni-W coating on Zn surface for durable Zn ion batteries
Aim: Aqueous zinc (Zn)-ion batteries have gained recognition as a promising energy storage solution due to their abundant zinc resources, cost-effectiveness, high energy density, and inherent safety. However, their practical application is significantly limited by issues such as dendrite formation and parasitic side reactions, which undermine the stability, efficiency, and longevity of Zn anodes. Methods: In this study, we present a novel approach by introducing a nanocrystalline nickel-tungsten (Ni-W) coating onto Zn anodes via electrodeposition. This coating acts as a functional interface, regulating Zn dissolution and deposition, suppressing dendrite growth, and minimizing side reactions. Additionally, W enhances Zn2+ ion adsorption, reduces nucleation energy barriers, and promotes uniform Zn growth along the Zn (002) crystallographic plane. Results: The compact morphology of the Ni-W layer further serves as a protective barrier, improving electrode stability during extended cycling. The
Zinc-ion battery / Ni-W coating / anode / electrodeposit
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