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Three-dimensional thermal finite element modeling of lithium-ion battery in thermal abuse application |
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| Authors: | Guifang Guo Bo Cheng Peng Xu |
| Affiliation: | a School of Mechanical Engineering, Xi’an Jiaotong University, 28#, Xian’ning West Road, Xi’an 710049, China b School of Mechatronics Engineering, University of Electronic Science and Technology, Cheng’du 610054, China c School of Construction Machinery, Chang’an University, Xi’an 710064, China |
| Abstract: | In order to better understand the thermal abuse behavior of high capacities and large power lithium-ion batteries for electric vehicle application, a three-dimensional thermal model has been developed for analyzing the temperature distribution under abuse conditions. The model takes into account the effects of heat generation, internal conduction and convection, and external heat dissipation to predict the temperature distribution in a battery. Three-dimensional model also considers the geometrical features to simulate oven test, which are significant in larger cells for electric vehicle application. The model predictions are compared to oven test results for VLP 50/62/100S-Fe (3.2 V/55 Ah) LiFePO4/graphite cells and shown to be in great agreement. |
| Keywords: | Thermal model Oven abuse test Thermal runaway Lithium-ion battery |
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