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.
Original language | English |
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Article number | 104892 |
Number of pages | 21 |
Journal | Journal of Energy Storage |
Volume | 53 |
Early online date | 22 Jun 2022 |
DOIs | |
Publication status | Published - 1 Sept 2022 |
Bibliographical note
AcknowledgmentsThis work was supported by the Aberdeen-Curtin Alliance Scholarship. This publication was also made possible in part by the Professorial Chair in Computational Geoscience at Curtin University. This project has received funding from the European Union’s Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie grant agreement No 777778 (MATHROCKS). The Curtin Corrosion Centre and the Curtin Institute for Computation kindly provide ongoing support.
Keywords
- Phase-field modeling
- Electrodeposition
- Lithium dendrite
- Metal-anode battery
- Finite element method