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Energies 2015, 8(1), 490-500; doi:10.3390/en8010490

A Thermal Runaway Simulation on a Lithium Titanate Battery and the Battery Module

1
China Southern Power Grid Power Generation Company, Guangzhou 511400, China
2
State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei 230026, China
3
Collaborative Innovation Center for Urban Public Safety, Hefei 230026, China
*
Author to whom correspondence should be addressed.
Academic Editor: Peter J. S. Foot
Received: 28 November 2014 / Accepted: 7 January 2015 / Published: 13 January 2015
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Abstract

Based on the electrochemical and thermal model, a coupled electro-thermal runaway model was developed and implemented using finite element methods. The thermal decomposition reactions when the battery temperature exceeds the material decomposition temperature were embedded into the model. The temperature variations of a lithium titanate battery during a series of charge-discharge cycles under different current rates were simulated. The results of temperature and heat generation rate demonstrate that the greater the current, the faster the battery temperature is rising. Furthermore, the thermal influence of the overheated cell on surrounding batteries in the module was simulated, and the variation of temperature and heat generation during thermal runaway was obtained. It was found that the overheated cell can induce thermal runaway in other adjacent cells within 3 mm distance in the battery module if the accumulated heat is not dissipated rapidly. View Full-Text
Keywords: lithium titanate battery; electro-thermal model; finite element method; thermal runaway lithium titanate battery; electro-thermal model; finite element method; thermal runaway
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Chen, M.; Sun, Q.; Li, Y.; Wu, K.; Liu, B.; Peng, P.; Wang, Q. A Thermal Runaway Simulation on a Lithium Titanate Battery and the Battery Module. Energies 2015, 8, 490-500.

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