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Research Progresses on Nano-Structured Silicon-Based Materials as Anode for Lithium-Ion Batteries
Xiang Chen1, Weidong Cheng1, Huanyan Liu1,2
1School of Material Science and Engineering, Qiqihar University, Qiqihar 161006, China.
Materials (Basel, Switzerland)
|February 26, 2025
Summary
Silicon anodes offer high capacity for lithium-ion batteries but suffer volume expansion issues. Nanostructuring silicon anodes effectively addresses this, improving battery performance and stability for next-generation energy storage.
Area of Science:
- Materials Science
- Electrochemistry
- Energy Storage
Background:
- Silicon anodes are promising for lithium-ion batteries due to high capacity and low potential.
- Significant volume expansion during cycling causes performance degradation.
Purpose of the Study:
- To review and evaluate micro- and nanostructured silicon anodes.
- To discuss strategies for improving silicon anode performance and stability.
Main Methods:
- Review of existing literature on silicon anode design.
- Analysis of nanostructured silicon anodes, silicon/carbon composites, and silicon/metal composites.
- Evaluation of electrochemical properties, cycle stability, and energy density.
Main Results:
- Nanostructuring alleviates silicon volume expansion, enhancing electrode stability.
- Composite materials like silicon/carbon and silicon/metal show improved electrochemical properties.
- Microstructured anodes have limitations in rate performance compared to nanostructured ones.
Conclusions:
- Rational design of nanostructured silicon anodes is crucial for advanced lithium-ion batteries.
- Composite strategies offer pathways to overcome silicon's inherent challenges.
- Future research should focus on optimizing nanostructure design and composite integration for superior energy storage.
