Coating highly lithiophilic Zn on Cu foil for high-performance lithium metal batteries

Lithium metal batteries (LMBs) are ideal candidates for next-generation high energy density energy storage systems. However, uncontrollable growth of Li dendrites due to uneven Li plating has restricted the practical application of the Li metal anode. Here, we develop a highly lithiophilic Zn coatin...

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Bibliographic Details
Published in:Rare metals 2022-04, Vol.41 (4), p.1255-1264
Main Authors: Song, Yun-Xiong, Lu, Wei-Yi, Chen, Yue-Jiao, Yang, Hao, Wu, Chen, Wei, Wei-Feng, Chen, Li-Bao, Ouyang, Xiao-Ping
Format: Article
Language:English
Subjects:
Anode effect
Biomaterials
Chemistry and Materials Science
Copper
Dendritic structure
Electric fields
Energy
Energy storage
Flux density
Industrial applications
Lithium
Materials Engineering
Materials Science
Metal foils
Metallic Materials
Nanoscale Science and Technology
Nucleation
Original Article
Physical Chemistry
Storage batteries
Storage systems
Substrates
Zinc
Zinc coatings
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Summary:Lithium metal batteries (LMBs) are ideal candidates for next-generation high energy density energy storage systems. However, uncontrollable growth of Li dendrites due to uneven Li plating has restricted the practical application of the Li metal anode. Here, we develop a highly lithiophilic Zn coating on commercial Cu foil as a substrate for Li metal anode to settle above issues. We find that the lithiophilic nature of Zn can facilitate homogeneous nucleation and deposition of Li on Cu current collector surface. In addition, the uniform Zn coating can not only decrease the nucleation overpotential but also regulate the electric field distribution. Benefiting from the coated Zn layer, the designed anode for half-cell and full-cell tests shows better electrochemical performances compared with the untreated Cu foil. This work provides a simple and effective way to enable a promising dendrite-free lithium metal anode for large-scale industrial applications. Graphical abstract
ISSN:1001-0521
1867-7185
DOI:10.1007/s12598-021-01811-3