Journal
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
Volume 158, Issue 12, Pages A1461-A1477Publisher
ELECTROCHEMICAL SOC INC
DOI: 10.1149/2.058112jes
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Funding
- National Science Foundation [CBET-0828002, CBET-1008692]
- International Center for Advanced Renewable Energy and Sustainability at Washington University in St. Louis (I-CARES)
- U.S. government
- Div Of Chem, Bioeng, Env, & Transp Sys [1008692] Funding Source: National Science Foundation
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In this paper, a simple transformation of coordinates is proposed that facilitates the efficient simulation of the non-isothermal lithium-ion pseudo 2-D battery model. The transformed model is then conveniently discretized using orthogonal collocation with the collocation points in the spatial direction. The resulting system of differential algebraic equations (DAEs) is solved using efficient adaptive solvers in time. A series of mathematical operations are performed to reformulate the model to enhance computational efficiency and programming convenience while maintaining accuracy even when non-linear or temperature dependent parameters are used. The transformed coordinate allows for efficient simulation and extension from cell sandwich to stack models. Furthermore, the transformation and reformulation techniques are used to simulate operation of an 8-cell battery stack subject to varying heat transfer coefficients as well as specified temperature boundary conditions. (C) 2011 The Electrochemical Society. [DOI: 10.1149/2.058112jes]
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