A Powder Metallurgic Approach toward High‐Performance Lithium Metal Anodes

The development of lithium metal anodes capable of sustaining large volume changes, avoiding lithium dendrite formation, and remaining stable in ambient air is crucial for commercially viable lithium metal batteries. Toward this goal, the fabrication of porous and lithiophilic copper scaffolds via a...

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Bibliographic Details
Published in:Small (Weinheim an der Bergstrasse, Germany) Germany), 2020-06, Vol.16 (24), p.e2000794-n/a
Main Authors: Qin, Kaiqiang, Baucom, Jesse, Liu, Deliang, Shi, Wenyue, Zhao, Naiqin, Lu, Yunfeng
Format: Article
Language:English
Subjects:
Anodes
Dendritic structure
Densification
Flux density
LiF coating, lithiophilicity
Lithium
Lithium batteries
lithium metal anodes
Nanotechnology
powder metallurgic, porous copper
Powder metallurgy
Scaffolds
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Summary:The development of lithium metal anodes capable of sustaining large volume changes, avoiding lithium dendrite formation, and remaining stable in ambient air is crucial for commercially viable lithium metal batteries. Toward this goal, the fabrication of porous and lithiophilic copper scaffolds via a powder metallurgy strategy is reported. Infiltrating the scaffolds with molten lithium followed by exposure to Freon R134a produces lithium metal anodes with dramatically improved rate performance and cycling stability. This work provides a simple yet effective route for the fabrication of safe, low‐cost lithium metal batteries with high energy density. Porous and lithiophilic copper scaffolds are fabricated via a powder metallurgy strategy. Infiltrating the scaffolds with molten lithium followed by exposure to Freon R134a produces lithium metal anodes with dramatically improved rate performance and cycling stability. This work provides a simple yet effective route for the fabrication of safe, low‐cost lithium metal batteries with high energy density.
ISSN:1613-6810
1613-6829
DOI:10.1002/smll.202000794