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Porous alloying-type particles for practical lithium-ion battery anodes
Yiteng Luo1, Sai Ho Pun2, He Yan2
1Institute of New-Energy and Low-Carbon Technology (INELT), College of Carbon Neutrality Future Technology, Sichuan University Chengdu Sichuan 610065 China.
Chemical Science
|February 16, 2026
Summary
Engineered porous structures in lithium-ion battery anodes significantly improve performance by accommodating volume changes. This review details porous alloying-type particles for high-energy batteries, focusing on pore structure and synthesis.
Area of Science:
- Materials Science
- Electrochemistry
- Energy Storage
Background:
- Lithium-alloying anodes (Si, Sn, Ge) offer high capacity for lithium-ion batteries (LIBs).
- Volume expansion during cycling causes anode degradation, limiting battery lifespan.
- Engineered porous structures are crucial for mitigating these issues.
Purpose of the Study:
- To review porous alloying-type particles (ATPs) for LIB anodes.
- To analyze structural evolution and the role of intraparticle pores.
- To summarize synthesis methods and discuss future directions.
Main Methods:
- Analysis of structural evolution during lithiation.
- Categorization of synthesis methodologies (bottom-up, top-down, transcription).
- Review of diagnostic techniques and stabilization strategies.
Main Results:
- Intraparticle pores are more critical than interparticle pores for anode stability.
- Pore structure (open vs. closed) significantly impacts performance.
- Advanced binders and electrolytes enhance ATP stability.
Conclusions:
- Porous ATPs are key to overcoming volume expansion challenges in high-energy LIBs.
- Scalable synthesis and understanding pore evolution are vital for practical application.
- Future research should focus on cell-level integration and novel anode designs.
