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Silicon-nanoparticle-based composites for advanced lithium-ion battery anodes
Yang Yang1, Wei Yuan, Wenquan Kang
1School of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou 510640, Guangdong, China. mewyuan@scut.edu.cn.
Nanoscale
|April 1, 2020
Summary
Silicon nanoparticles (SiNPs) are promising for advanced lithium-ion batteries (LIBs). This review details various SiNP composites and their electrochemical effects, crucial for optimizing anode performance.
Area of Science:
- Materials Science
- Electrochemistry
- Energy Storage
Background:
- Graphite anodes in lithium-ion batteries (LIBs) have limited capacity.
- Silicon (Si) offers high theoretical capacity but suffers from poor conductivity and volume expansion.
- Nanostructuring Si into nanoparticles (SiNPs) is key to overcoming these limitations.
Purpose of the Study:
- To review diverse SiNP-based composites for LIB anodes.
- To analyze the electrochemical effects of various coupled materials with SiNPs.
- To provide insights for anode fabrication and optimization.
Main Methods:
- Comprehensive literature review of SiNP composites for LIBs.
- Categorization of coupled materials (e.g., carbon, metals, oxides, MOFs).
- Analysis of electrochemical performance impacts.
Main Results:
- SiNP composites demonstrate enhanced electrochemical performance compared to bare Si.
- Different coupled materials impart unique properties, influencing conductivity and stability.
- A wide array of materials, including carbon, metals, oxides, nitrides, carbides, and MOFs, have been successfully integrated with SiNPs.
Conclusions:
- SiNP-based composites are a viable strategy for next-generation LIB anodes.
- Understanding the interplay between SiNPs and composite materials is vital for performance enhancement.
- This review serves as a guide for selecting and designing advanced SiNP anode materials.
