Title: Improvement of accuracy of multi-scale models of Li-ion batteries by applying operator splitting techniques
Authors: FARKAS LASZLOFARAGÓ I.KRISTON AKOSPFRANG Andreas
Citation: JOURNAL OF COMPUTATIONAL AND APPLIED MATHEMATICS vol. 310 p. 59-79
Publisher: ELSEVIER SCIENCE BV
Publication Year: 2017
JRC N°: JRC100970
ISSN: 0377-0427
URI: http://publications.jrc.ec.europa.eu/repository/handle/JRC100970
DOI: 10.1016/j.cam.2016.03.029
Type: Articles in periodicals and books
Abstract: In this work operator splitting techniques have been applied successfully to improve the accuracy of multi-scale Lithium-ion (Li-ion) battery models. A slightly simplified Li-ion battery model is derived, which can be solved on one time scale and multiple time scales. Different operator splitting schemes combined with different approximations are compared with the non-splitted reference solution in terms of stability, accuracy and processor cost. It is shown, that the reverse Strang-Marchuk splitting combined with the implicit scheme to solve the diffusion operator and Newton method to approximate the non-linear source term can improve the accuracy of the commonly applied vertical (sequential) multi-scale models by almost 3 times without considerably increasing the processor cost.
JRC Directorate:Energy, Transport and Climate

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