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  4. On some model reduction approaches for simulations of processes in Li-ion battery
 
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2012
Conference Paper
Title

On some model reduction approaches for simulations of processes in Li-ion battery

Abstract
In this work, some model reduction approaches for performing simulations with a pseudo-2D model of Li-ion battery are presented. A full pseudo-2D model of processes in Li-ion batteries is presented following [1], and three methods to reduce the order of the full model are considered. These are: i) directly reduce the model order using proper orthogonal decomposition, ii) using fractional time step discretization in order to solve the equations in decoupled way, and iii) reformulation approaches for the diffusion in the solid phase. Combinations of above methods are also considered. Results from numerical simulations are presented, and the efficiency and the accuracy of the model reduction approaches are discussed.
Author(s)
Iliev, Oleg  
Fraunhofer-Institut für Techno- und Wirtschaftsmathematik ITWM  
Latz, Arnulf
Fraunhofer-Institut für Techno- und Wirtschaftsmathematik ITWM  
Zausch, Jochen  
Fraunhofer-Institut für Techno- und Wirtschaftsmathematik ITWM  
Zhang, Shiquan
Fraunhofer-Institut für Techno- und Wirtschaftsmathematik ITWM  
Mainwork
Algorithmy 2012, 19th Conference on Scientific Computing. Proceedings of contributed papers and posters. Online resource  
Conference
Conference on Scientific Computing (Algorithmy) 2012  
Link
Link
Language
English
Fraunhofer-Institut für Techno- und Wirtschaftsmathematik ITWM  
Keyword(s)
  • Pseudo-2D model

  • Li-ion battery

  • model order reduction

  • proper orthogonal decomposition

  • fractional time step

  • model reformulation

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