Cracking predictions of lithium-ion battery electrodes by X-ray computed tomography and modelling

نویسندگان

چکیده

Fracture of lithium-ion battery electrodes is found to contribute capacity fade and reduce the lifespan a battery. Traditional fracture models for batteries are restricted consideration single, idealised particle; here, advanced X-ray computed tomography (CT) imaging, an electro-chemo-mechanical model phase field framework combined predict void-driven in electrode particles realistic microstructure. The shown exhibit highly heterogeneous electrochemical response that depends on particle size distance from separator/current collector. enables prediction increased cracking due enlarged cycling voltage windows, susceptibility as function thickness, damage sensitivity discharge rate. This provides platform facilitates deeper understanding design next-generation with higher capacities improved degradation characteristics.

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ژورنال

عنوان ژورنال: Journal of Power Sources

سال: 2022

ISSN: ['1873-2755', '0378-7753']

DOI: https://doi.org/10.1016/j.jpowsour.2022.231119