Numerical investigation of thermal runaway propagation in a Li-ion battery module using the heat pipe cooling system |
| |
| Authors: | Yuan Li Fei Qi Hao Guo Gang Xu Jiang Liu |
| |
| Affiliation: | 1. College of Energy and Power Engineering, Inner Mongolia University of Technology, Hohhot, China;2. School of Mechanical and Electric Engineering &3. Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou, China;4. Jiangsu Provincial Key Laboratory of Advanced Robotics &5. Robotics and Microsystems Center, Soochow University, Suzhou, China;6. College of Mechanical Engineering, Inner Mongolia University of Technology, Hohhot, China |
| |
| Abstract: | It is a promising cooling strategy to use the heat pipe for the Li-ion battery module, which can maintain the temperature of the battery module properly and prevent high temperature, triggering the thermal runaway among adjacent batteries. In this study, the thermal runaway model is simulated through the internal short circuit, which couples with Volume of Fluid (VOF) model of the heat pipe cooling and solves in ANSYS FLUENT to realize the heat and mass transfer between batteries and heat pipes. A user-defined function (UDF) code including mass source and energy source is used to calculate the heat and mass transfer in VOF model during the thermal runaway process. Numerical simulations are adopted to probe thermal runaway processes of a single battery under different operation conditions and the thermal runaway propagation from a battery to adjacent batteries. It is concluded that the heat pipe cooling system cannot prevent the thermal runaway of a single battery, but it can prevent the thermal runaway propagation from a battery to adjacent batteries. |
| |
| Keywords: | |
|
|
