Improvement of accuracy of multi-scale models of Li-ion batteries by applying operator splitting techniques

Farkas, Z. and Faragó, István and Kriston, Á. and Pfrang, A. (2017) Improvement of accuracy of multi-scale models of Li-ion batteries by applying operator splitting techniques. JOURNAL OF COMPUTATIONAL AND APPLIED MATHEMATICS, 310. pp. 59-79. ISSN 0377-0427


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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. © 2016 The Authors

Item Type: Article
Uncontrolled Keywords: LITHIUM-ION BATTERIES; Reference solution; Operator-splitting; Operator splitting technique; Newton iterations; Multiple time scale; Diffusion operators; Numerical models; Newton-Raphson method; Lithium alloys; LITHIUM; iterative methods; IONS; Electric batteries; Battery management systems; time discretization; Operator splitting; numerical model; Newton iteration; Multi-scale modeling; Li-ion battery
Subjects: Q Science / természettudomány > QA Mathematics / matematika > QA74 Analysis / analízis
Q Science / természettudomány > QD Chemistry / kémia
Depositing User: MTMT SWORD
Date Deposited: 16 Jan 2017 15:29
Last Modified: 16 Jan 2017 15:29

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