Modeling discontinuous potential distributions using the finite volume method, and application to liquid metal batteries
| Autor: | Paolo Personnettaz, Donald R. Sadoway, Norbert Weber, Ji Zhao, Steffen Landgraf, Tom Weier, Kashif Mushtaq, Michael Nimtz |
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| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Battery (electricity)
Chemical Physics (physics.chem-ph) Liquid metal Finite volume method Materials science Discretization Laplace transform General Chemical Engineering FOS: Physical sciences 02 engineering and technology Mechanics Applied Physics (physics.app-ph) Physics - Applied Physics Computational Physics (physics.comp-ph) 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Physics - Chemical Physics Electrochemistry Boundary value problem Current (fluid) 0210 nano-technology Physics - Computational Physics Voltage |
| Zdroj: | Electrochimica Acta 318(2019), 857-864 arXiv |
| Popis: | © 2019 Elsevier Ltd The electrical potential in a battery jumps at each electrode-electrolyte interface. We present a model for computing three-dimensional current and potential distributions, which accounts for such internal voltage jumps. Within the framework of the finite volume method we discretize the Laplace and gradient operators such that they account for internal jump boundary conditions. After implementing a simple battery model in OpenFOAM we validate it using an analytical test case, and show its capabilities by simulating the current distribution and discharge curve of a Li‖Bi liquid metal battery. |
| Databáze: | OpenAIRE |
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