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Solid-state Graft Copolymer Electrolytes for Lithium Battery Applications
Published on: August 12, 2013
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Conversion inorganic interlayer of a LiF/graphene composite in all-solid-state lithium batteries
Yingxiang Li1, Yiqiu Li, Yanan Yang
1State Key Lab of High Performance Ceramics and Superfine microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai, 200050, P. R. China. taozhang@mail.sic.ac.cn.
Chemical Communications (Cambridge, England)
|January 16, 2020
Summary
A new inorganic composite interlayer (ICI) improves solid-state lithium battery performance. This flexible, ion-conductive layer enhances electrode contact, enabling stable battery operation for 60 cycles.
Area of Science:
- Materials Science
- Electrochemistry
- Energy Storage
Background:
- Solid-state lithium batteries (ASSLBs) face challenges at the solid-state electrolyte (SSE) and electrode interfaces.
- These interfacial issues hinder the development and widespread adoption of ASSLBs.
Purpose of the Study:
- To develop a novel solution for improving interfacial contact in ASSLBs.
- To enhance the stability and performance of ASSLBs through a new interlayer material.
Main Methods:
- An inorganic composite interlayer (ICI) composed of LiF/graphene was synthesized.
- The ICI was constructed in situ at the cathode/garnet interface via electrochemical pre-lithiation of fluorinated graphene (GF).
Main Results:
- The LiF/graphene ICI exhibits flexibility and good ion conductivity.
- The ICI effectively improved the contact between the cathode and the garnet electrolyte.
- The modified ASSLB demonstrated stable operation for 60 cycles without liquid components.
Conclusions:
- The in situ constructed LiF/graphene ICI is a promising strategy for overcoming interfacial limitations in ASSLBs.
- This approach enhances the electrochemical performance and operational stability of all-solid-state lithium batteries.
