Study on 3D-RVE multiphysics model of carbon fiber electrode

Xiaoyu Liu; Junjie Zhong; Xiaochen Wang; Zhenkun Lei; Ruixiang Bai

doi:10.1117/12.3054954

4 November 2024 Study on 3D-RVE multiphysics model of carbon fiber electrode

Xiaoyu Liu, Junjie Zhong, Xiaochen Wang, Zhenkun Lei, Ruixiang Bai

Author Affiliations +

Proceedings Volume 13420, Third International Conference on New Materials, Machinery, and Vehicle Engineering (NMMVE 2024); 1342009 (2024) https://doi.org/10.1117/12.3054954
Event: International Conference on New Materials, Machinery, and Vehicle Engineering 2024, 2024, Dalian, China

Abstract

Carbon fiber electrodes can simultaneously realize energy storage and load-carrying. In this study, a 3D-RVE multiphysics model of carbon fiber electrode is established to simulate the lithiation process under different discharge multiplicities. Results show that lowering the discharge multiplicity and elevating the fiber spacing can promote the uniformity of lithium concentration, stress distribution and volume expansion. The hydrostatic pressure has a facilitating effect on the discharge process, which proves the two-way coupling effect of the model. This work may contribute to understand the lithiation mechanism of carbon fiber electrode and provide ideas for multi-physics field modeling of structural batteries.

Citation Download Citation

Xiaoyu Liu, Junjie Zhong, Xiaochen Wang, Zhenkun Lei, and Ruixiang Bai "Study on 3D-RVE multiphysics model of carbon fiber electrode", Proc. SPIE 13420, Third International Conference on New Materials, Machinery, and Vehicle Engineering (NMMVE 2024), 1342009 (4 November 2024); https://doi.org/10.1117/12.3054954

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