Homogenization of solid-electrolyte composite intercalation cathodes for energy storage systems

Abstract : We investigate well-accepted formulations describing charge transport in composite cathodes of batteries. Our upscaling of carefully selected microscopic equations shows three main features: (i) a novel set of six equations equipped with nine effective parameters which systematically couple the microscale to the macroscale; (ii) the coupling of transport and flow equations allows to account for three scales: pore scale, Darcy scale, and macroscale; (iii) the upscaled equations take phase separation during Li-intercalation into account as well as specific particle configurations. The wide range of applications and interest in energy storage devices make these results a promising tool to study the influence of the microstructure on current-voltage characteristics and to optimize cathode designs.
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Pré-publication, Document de travail
2017
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https://hal.archives-ouvertes.fr/hal-01485524
Contributeur : Markus Schmuck <>
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Dernière modification le : mercredi 4 octobre 2017 - 15:16:05
Document(s) archivé(s) le : vendredi 9 juin 2017 - 14:30:41

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  • HAL Id : hal-01485524, version 1

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Markus Schmuck. Homogenization of solid-electrolyte composite intercalation cathodes for energy storage systems. 2017. 〈hal-01485524〉

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