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Extension of physics-based single particle model for higher charge–discharge rates

Khaleghi Rahimian, Saeed ; Rayman, Sean ; White, Ralph E.

Journal of power sources, 2013-02, Vol.224, p.180-194 [Periódico revisado por pares]

Amsterdam: Elsevier B.V

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Título:
Extension of physics-based single particle model for higher charge–discharge rates
Autor: Khaleghi Rahimian, Saeed ; Rayman, Sean ; White, Ralph E.
Assuntos: Applied sciences ; Direct energy conversion and energy accumulation ; Electrical engineering. Electrical power engineering ; Electrical power engineering ; Electrochemical conversion: primary and secondary batteries, fuel cells ; Exact sciences and technology ; Li ion battery ; Model order reduction ; Polynomial approximation ; Single particle model
É parte de: Journal of power sources, 2013-02, Vol.224, p.180-194
Notas: ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
Descrição: An isothermal reduced order physics-based Li ion battery model is developed by incorporating solution phase charge and material balances into single particle (SP) model. Li ion concentration and potential profiles in electrolyte phase are approximated by polynomial functions. A cubic polynomial is used for electrolyte concentration and potential inside electrodes, while separator liquid phase potential and concentration are estimated by parabolas. Diffusion inside solid particles is also simplified using an approximate solution based on analytical solution for the solid concentration. Applying the aforementioned reduction techniques decreases the degree of freedom of full order model by more than 100, while the cell voltage relative error of proposed model is less than 1% at different charge–discharge rates up to 5C. ► We extended the physics-based single particle model for higher charge–discharge rates up to 5C. ► The improved single particle (ISP) model was compared with full-order pseudo two dimensional (P2D) model. ► The ISP model could predict the P2D model results up to 5C while the simulation time was reduced by a factor about 5.
Editor: Amsterdam: Elsevier B.V
Idioma: Inglês

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Extension of physics-based single particle model for higher charge–discharge rates

Khaleghi Rahimian, Saeed ; Rayman, Sean ; White, Ralph E.

Amsterdam: Elsevier B.V

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