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Focused Ion Beam Fabrication of LiPON-based Solid-state Lithium-ion Nanobatteries for In Situ Testing
Published on: March 7, 2018
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An ultra-stable prelithiated Sn anode for sulfide-based all-solid-state Li batteries.
Haozhe Geng1,2, Senhe Huang2,3, Zhenyu Zhang4,5
1School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai 201418, China. hansheng654321@sina.com.
Chemical Communications (Cambridge, England)
|March 10, 2025
Summary
A novel prelithiated tin anode improves sulfide solid-state batteries. This advancement enhances lithium battery performance and longevity by addressing lithium loss and volume expansion issues.
Area of Science:
- Materials Science
- Electrochemistry
- Battery Technology
Background:
- Sulfide-based all-solid-state lithium batteries (ASSLBs) offer potential for high energy density.
- Anode material stability and lithium loss are critical challenges in ASSLB development.
- Tin (Sn) anodes are promising but suffer from volume expansion and poor cycling stability.
Purpose of the Study:
- To develop a stable and high-performance anode for sulfide-based ASSLBs.
- To investigate the efficacy of prelithiated tin (LiSn) as an anode material.
- To evaluate the compatibility of LiSn anodes with Li6PS5Cl solid electrolytes.
Main Methods:
- Fabrication of a prelithiated tin (LiSn) anode.
- Integration of the LiSn anode with a Li6PS5Cl solid electrolyte.
- Electrochemical testing of LiSn|NCM811 cells, including cycling performance and capacity retention analysis.
Main Results:
- The LiSn anode demonstrated excellent compatibility with the Li6PS5Cl sulfide electrolyte.
- The LiSn|NCM811 cell achieved a high initial capacity of 163 mA h g-1 at 0.1C.
- The cell exhibited remarkable cycling stability, retaining 91% of its capacity after 650 cycles at 1C.
Conclusions:
- Prelithiation of tin anodes effectively compensates for lithium loss during battery operation.
- The LiSn anode mitigates volume expansion issues, leading to improved cycle life.
- This prelithiated tin anode strategy enables high-performance sulfide-based all-solid-state lithium batteries.
