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Microstructure-Dependent Macroscopic Electro-Chemo- Mechanical Behaviors of Li-Ion Battery Composite Electrodes

Author

Listed:
  • Ying Zhao

    (School of Aerospace Engineering and Applied Mechanics, Tongji University, Shanghai 200092, China)

  • Zhongli Ge

    (School of Aerospace Engineering and Applied Mechanics, Tongji University, Shanghai 200092, China)

  • Zongli Chen

    (School of Aerospace Engineering and Applied Mechanics, Tongji University, Shanghai 200092, China)

Abstract

The rapid development of the electric vehicle industry has created an urgent need for high-performance Li-ion batteries. Such demand not only requires the development of novel active materials but also requires optimized microstructure of composite electrodes. However, due to complicated heterogeneous electrode microstructure, there still lacks a relationship between the electrode microstructure and the macroscopic electro-chemo-mechanical performance of the battery. In this study, electrochemical and mechanical multi-scale models are developed in order to account for the influence of the heterogeneous microstructure on the macroscopic mechanical and electrochemical behavior of the battery. It is found that porosity and particle size are two important parameters to characterize the microstructure that can affect the macroscopic mechanical and electrochemical behavior. The models developed in this study can be served as designing guidelines for the optimization for the Li-ion battery composite electrodes.

Suggested Citation

  • Ying Zhao & Zhongli Ge & Zongli Chen, 2024. "Microstructure-Dependent Macroscopic Electro-Chemo- Mechanical Behaviors of Li-Ion Battery Composite Electrodes," Energies, MDPI, vol. 17(18), pages 1-14, September.
    • Handle: RePEc:gam:jeners:v:17:y:2024:i:18:p:4607-:d:1477868
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    References listed on IDEAS

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    1. Kaituo Song & Bo Lu & Yaolong He & Yicheng Song & Junqian Zhang, 2023. "Modulus Estimation of Composites with High Porosity, High Particle Volume Fraction, and Particle Eigenstrain: Application to the LIB Active Layer with a Bridged-Particle Mesostructure," Energies, MDPI, vol. 16(3), pages 1-13, February.
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