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Electrochemical-Thermal Analysis of Lithium Ion Batteries Based on Multiphase Fluids Model
Satoyuki Kawano and Futoshi Nishimura

The electrochemical and thermal behavior of lithium ion batteries during discharge was numerically analyzed for the safety in the practical applications based on a nano/micro-scale multiphase fluid model. The model was developed by the authors in previous reports for predicting the charge and discharge characteristics of lithium ion batteries. Numerical analyses for thermal behavior in the battery were made for various physical properties and operational conditions. Detailed comparison of the numerical and experimental results was made for a commercial personal computer battery. The results were in reasonable agreement from the viewpoint of engineering applications. Consequently, the validity of the mathematical model and the numerical scheme were confirmed.

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