Facilely constructing ultrahigh lattice-matched CuZn5 epitaxial interface for dendrite-free Zn metal anode

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外文摘要：Constructing a protective layer on Zn anode surface with high lattice matching to Zn(002)can facilitate preferential growth along the(002)crystal plane and suppress dendritic growth as well as interface side reactions.Whereas most of protective layers are complex and costly,making commercial applications challenging.Herein,we introduce a facile method involving the addition of CuCl2 electrolyte additives to conventional electrolyte systems,which,through rapid displacement reactions and controlled electro-chemical cycling,forms a CuZn5 alloy layer with 97.2％lattice matching to the(002)plane(CuZn5@Zn),thus regulating the(002)plane epitaxial deposition.As a result,the symmetric cells with CuZn5@Zn demonstrate an ultra-long cycle life of 3600 h at 1 mA cm-2.Under extreme conditions of high current density(20 mA cm-2)and high zinc utilization(DODZn=50％),stable cycling performance is maintained for 220 and 350 h,respectively.Furthermore,the CuZn5@Zn||NH4V4O10 full cell maintains a capacity of 120 mA h g-1 even after 10,000 cycles at a high current density of 10 A g-1.This work presents a facile and efficient strategy for constructing stable metal anode materials,with implications for the develop-ment of next-generation rechargeable batteries.

外文关键词：

Zn anodeCuZn5 alloyLattice matchingDendritesSide reactions

作者：

Jin Cao、Haiyang Wu、Yilei Yue、Dongdong Zhang、Biaoyang Li、Ding Luo、Lulu Zhang、Jiaqian Qin、Xinyu Zhang、Xuelin Yang

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作者单位：

College of Hydraulic & Environmental Engineering,China Three Gorges University,Yichang 443002,Hubei,China

Hubei Provincial Collaborative Innovation Center for New Energy Microgrid,College of Electrical Engineering & New Energy,China Three Gorges University,Yichang 443002,Hubei,China

State Key Laboratory of Metastable Materials Science and Technology,Yanshan University,Qinhuangdao 066004,Hebei,China

College of Materials Engineering,North China Institute of Aerospace Engineering,Langfang 065000,Hebei,China

School of Materials Science and Engineering,Shenyang University of Technology,Shenyang 110870,Liaoning,China

Center of Excellence on Advanced Materials for Energy Storage,Metallurgy and Materials Science Research Institute,Chulalongkorn University,Bangkok 10330,Thailand

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出版年：

2024

DOI：

10.1016/j.jechem.2024.08.023

能源化学

中国科学院大连化学物理研究所中国科学院成都有机化学研究所

能源化学

CSTPCDEI

影响因子：0.654

ISSN：2095-4956

年,卷(期)：2024.99(12)