Model Reduction for Multiscale Lithium-Ion Battery Simulation
In this contribution we are concerned with efficient model reduction for multiscale problems arising in lithium-ion battery modeling with spatially resolved porous electrodes. We present new results on the application of the reduced basis method to the resulting instationary 3D battery model that involves strong non-linearities due to Buttler-Volmer kinetics. Empirical operator interpolation is used to efficiently deal with this issue. Furthermore, we present the localized reduced basis multiscale method for parabolic problems applied to a thermal model of batteries with resolved porous electrodes. Numerical experiments are given that demonstrate the reduction capabilities of the presented approaches for these real world applications.
KeywordsProper Orthogonal Decomposition Model Reduction Current Collector Porous Electrode Proper Orthogonal Decomposition Mode
The authors thank Sebastian Schmidt from Fraunhofer ITWM Kaiserslautern for the close and fruitful collaboration within the BMBF-project MULTIBAT towards integration of BEST with pyMOR. This work has been supported by the German Federal Ministry of Education and Research (BMBF) under contract number 05M13PMA.
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