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Quasi-Solid Gel Electrolytes for Alkali Metal Battery Applications
Jiahui Lu1,2, Yingying Chen1,3, Yaojie Lei1
1Faculty of Science, Centre for Clean Energy Technology, School of Mathematical and Physical Science, University of Technology Sydney, Ultimo, NSW, 2007, Australia.
Nano-Micro Letters
|March 19, 2025
Summary
Quasi-solid gel electrolytes (QSGEs) enhance alkali metal batteries (AMBs) for wearables. This review explores self-healing, flexible, biomimetic, and biomass gels for improved battery safety, durability, and performance.
Area of Science:
- Materials Science
- Electrochemistry
- Energy Storage
Background:
- Alkali metal batteries (AMBs) offer high energy density but face safety and durability challenges, especially for wearable electronics.
- Quasi-solid gel electrolytes (QSGEs) are a promising strategy to improve AMB safety and performance.
Purpose of the Study:
- To review the application and impact of QSGEs in alkali metal batteries.
- To highlight advancements in self-healing, flexible, biomimetic, and biomass-derived gel electrolytes.
- To discuss future research directions for enhancing QSGEs in AMBs.
Main Methods:
- Review of existing literature on QSGEs for AMBs.
- Categorization of QSGEs into four types: self-healing, flexible, biomimetic, and biomass-derived.
- Analysis of the influence of these gel types on battery performance, safety, and stability.
Main Results:
- Self-healing gels improve battery lifespan and safety via repair mechanisms.
- Flexible gels enable AMBs for wearable and flexible electronic applications.
- Biomimetic and biomass gels offer high performance, environmental friendliness, and biocompatibility.
- QSGEs significantly enhance AMB lifespan, safety, and adaptability.
Conclusions:
- QSGEs are crucial for advancing alkali metal battery technology, particularly for demanding applications like wearables.
- Further research on ionic conductivity, mechanical strength, and environmental stability of novel gel materials is needed.
- This review provides insights into future research and applications of QSGEs in AMBs.
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