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A Powder Metallurgic Approach toward High-Performance Lithium Metal Anodes
Kaiqiang Qin1, Jesse Baucom1, Deliang Liu2
1Department of Chemical and Biomolecular Engineering, University of California, Los Angeles, CA, 90095, USA.
Small (Weinheim an Der Bergstrasse, Germany)
|May 19, 2020
Summary
Researchers developed stable lithium metal anodes using porous copper scaffolds. This innovation enhances lithium metal battery performance and safety for commercial applications.
Area of Science:
- Materials Science
- Electrochemistry
- Energy Storage
Background:
- Commercial viability of lithium metal batteries hinges on developing anodes that manage volume changes, prevent dendrite growth, and maintain air stability.
- Current lithium metal anode technologies face challenges in achieving long-term stability and high performance.
Purpose of the Study:
- To fabricate robust and lithiophilic copper scaffolds for advanced lithium metal anodes.
- To enhance the rate capability and cycling stability of lithium metal batteries.
Main Methods:
- Utilized a powder metallurgy strategy to create porous copper scaffolds.
- Infiltrated scaffolds with molten lithium.
- Treated infiltrated scaffolds with Freon R134a.
Main Results:
- Successfully fabricated porous, lithiophilic copper scaffolds.
- Produced lithium metal anodes exhibiting significantly improved rate performance.
- Demonstrated enhanced cycling stability for the developed lithium metal anodes.
Conclusions:
- The developed method offers a simple and effective route for fabricating advanced lithium metal anodes.
- This approach contributes to the creation of safe, low-cost lithium metal batteries with high energy density.
- The findings pave the way for practical applications of high-performance lithium metal batteries.
