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arXiv · 2204.06696

Dendrite formation in rechargeable lithium-metal batteries: Phase-field modeling using open-source finite element library

Marcos E. Arguello·Nicolas A. Labanda·Victor M. Calo·Monica Gumulya·Ranjeet Utikar·Jos Derksen
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Abstract

We describe a phase-field model for the electrodeposition process that forms dendrites within metal-anode batteries. We derive the free energy functional model, arriving at a system of partial differential equations that describe the evolution of a phase field, the lithium-ion concentration, and an electric potential. We formulate, discretize, and solve the set of partial differential equations describing the coupled electrochemical interactions during a battery charge cycle using an open-source finite element library. The open-source library allows us to use parallel solvers and time-marching adaptivity. We describe two- and three-dimensional simulations; these simulations agree with experimentally-observed dendrite growth rates and morphologies reported in the literature.

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Marcos E. Arguello, Nicolas A. Labanda, Victor M. Calo, Monica Gumulya, Ranjeet Utikar, Jos Derksen. 2022-04-20. Dendrite formation in rechargeable lithium-metal batteries: Phase-field modeling using open-source finite element library. https://arxiv.org/abs/2204.06696

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