E3S Web Conf.
Volume 341, 20222022 7th International Conference on Green Materials and Environmental Engineering (GMEE2022)
|Number of page(s)||7|
|Published online||31 January 2022|
Strength analysis of the lightweight-designed power battery boxes in electric vehicle
1 Tianjin Chinese Academy of Sciences Institute of Advanced Technology, No.3 Haitai-Development Six Road, Xiqing District, Tianjin, PR China
# These authors contributed equally to this work.
* Corresponding author: firstname.lastname@example.org
The weight lightening of electric vehicles’ power battery box not only improves the vehicles’ mileage but also extends the service life of the power battery, while in practice the design of lightweight shall not sacrifice its strength for safety reason. Herein, three materials including the glass fiber composite, carbon fiber composite, and metal steel are used to develop the same power battery box and their strengths are simulated. The results show that the sheet molding compound (SMC, a kind of glass fiber composite) power battery pack shall be damaged when the loaded extrusion force is increased to 98.2 kN; for the metal power battery pack, a force of 81 kN would make the deformation more than 30%; while for the carbon fiber composite one, it can stand the extrusion test up to 100 kN, and the specific gravity and specific strength are higher than the former two materials under the same design model condition. This study proves the carbon fiber composite has the advantages of high strength and light weight when applied to the power battery box.
Key words: Carbon fiber composites / Simulation analysis / Power battery box / Lightweight / Specific strength
© The Authors, published by EDP Sciences, 2022
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