Prioritizing Hetero‐Metallic Interfaces via Thermodynamics Inertia and Kinetics Zincophilia Metrics for Tough Zn‐Based Aqueous Batteries. Issue 17 (18th March 2023)

• Record Type: Journal Article
• Authors: Zhao, Ruizheng; Dong, Xusheng; Liang, Pei; Li, Hongpeng; Zhang, Tengsheng; Zhou, Wanhai; Wang, Boya; Yang, Zhoudong; Wang, Xia; Wang, Lipeng; Sun, Zhihao; Bu, Fanxing; Zhao, Zaiwang; Li, Wei; Zhao, Dongyuan; Chao, Dongliang
• Is Part Of: Advanced materials. Volume 35:Issue 17(2023)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2023-03-18
• Subjects: dendrite free -- electrochemical active sites -- kinetics zincophilia -- metallic interface -- thermodynamic inertia; Materials -- Periodicals; Chemical vapor deposition -- Periodicals; 620.11
• DOI: 10.1002/adma.202209288
• Languages: English
• ISSNs: 0935-9648

Abstract

Abstract: Poor thermodynamic stability and sluggish electrochemical kinetics of metallic Zn anode in aqueous solution greatly hamper its practical application. To solve such problems, to date, various zincophilic surface modification strategies are developed, which can facilitate reversible Zn plating/stripping behavior. However, there is still a lack of systematic and fundamental understanding regarding the metrics of thermodynamics inertia and kinetics zincophilia in selecting zincophilic sites. Herein, hetero‐metallic interfaces are prioritized for the first time via optimizing different hetero metals (Fe, Co, Ni, Sn, Bi, Cu, Zn, etc.) and synthetic solvents (ethanol, ethylene glycol, n ‐propanol, etc.). Specifically, both theoretical simulations and experimental results suggest that this Bi@Zn interface can exhibit high efficiency owing to the thermodynamics inertia and kinetics zincophilia. A best practice for prioritizing zincophilic sites in a more practical metric is also proposed. As a proof of concept, the Bi@Zn anode delivers ultralow overpotential of ≈55 mV at a high rate of 10 mA cm −2 and stable cycle life over 4700 cycles. The elaborated "thermodynamics inertia and kinetics metalphilia" metrics for hetero‐metallic interfaces can benchmark the success of other metal‐based batteries. Abstract : What is a good hetero‐metallic interface and how to design it? Targeting at prioritizing zincophilic sites for high‐efficiency Zn anode, a theory‐to‐application metric is established via various hetero metals and synthetic solvents. The elaborate "thermodynamics inertia and kinetics metalphilia" metrics for the rational selection and design of the artificial interfaces can benchmark the success of other metal‐based batteries.