首页|In-situ construction of epitaxial phase for boosting zinc nucleation on three-dimensional interface

In-situ construction of epitaxial phase for boosting zinc nucleation on three-dimensional interface

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Interface modification of zinc(Zn)metal anode with conductive three-dimensional(3D)structure is widely uti-lized in zinc ion batteries.However,the uniformity of zinc nucleation on surface microstructure is rarely investigated which exacerbates the tip effect and raises unstable risk.Herein,a strategy via the initial copper(Cu)alloying and following sulfurization treatment is reported to accomplish boosted uniform nucleation of zinc on the modified layer with dense microstructures.This epitaxial sulfide phase not only improves the wetting area to revitalize the microstructural surface,but also forms a bifunctional zincophilic Cu2S/CuZn alloy interface layer,which combines the merits of guided local ions diffusion and improved zinc nucleation environment.As a result,a homogeneous growth of zinc on the 3D structural substrate can be realized,and cycling stability of the achieved Cu2S/CuZn electrode with a practical capacity of 1 mAh cm-2 under 1 mA cm-2 or amplified current density of 10 mA cm-2 is significantly enhanced.This work provides an epitaxial strategy in constructing a bifunctional zincophilic interface layer for boosting zinc nucleation,and offers a new perspective on the modification of 3D surface structure for stabilization of zinc anode.

Zn anodeHydrophilicitySulfideCuZn alloyZn metal battery

Xin He、Zhe Zhu、Xiaoqiao Liao、Kai Yang、Yixue Duan、Linfeng Lv、Chuan Zhao、Wei Zhao、Jibing Chen、Peng Tian、Xiaoyu Liu、Liang He

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School of Mechanical Engineering,State Key Laboratory of Intelligent Construction and Healthy Operation and Maintenance of Deep Underground Engineering,Sichuan University,Chengdu,610065,PR China

School of Chemistry,Faculty of Science,University of New South Wales,Sydney,New South Wales,2052,Australia

School of Materials Science and Engineering,Sichuan University of Science&Engineering,Zigong 643000,P.R.China

School of Mechanical Engineering,Wuhan Polytechnic University,Wuhan,430023,PR China

Med+X Center for Manufacturing,West China Hospital,Sichuan University,Chengdu,610041,PR China

Yibin Industrial Technology Research Institute of Sichuan University,Yibin R&D Park of Sichuan University,Yibin,644005,PR China

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2024

10.1016/j.pnsc.2024.05.002

自然科学进展·国际材料(英文)
国家自然科学基金委员会

自然科学进展·国际材料(英文)

影响因子：0.25
ISSN：1002-0071
年,卷(期)：2024.34(3)