Abstract
This paper presents an electrochemical-electrical-thermal coupled modeling approach for pouch-type lithium ion batteries. In the presented approach, simple and efficient analytical methods are applied to calculate the current density over the current collector and the localized heat generation rate of current collectors. The feasibility of this approach is validated with experimentation. A comprehensive simulation study on the impact of tab arrangements on the temperature distribution of pouch-type lithium ion batteries is conducted. The results demonstrate that symmetrical tab arrangements improve the uniformity of temperature distribution significantly, although they will lead to a very slight increment of the maximum temperature on the surface of pouch cell. Besides, placing the collecting tabs on the opposite sides or long side(s) of battery cell is helpful in lowering its maximum temperature and improving the uniformity of temperature distribution.
| Original language | English |
|---|---|
| Pages (from-to) | 249-257 |
| Number of pages | 9 |
| Journal | Journal of Energy Storage |
| Volume | 11 |
| Early online date | 6 Apr 2017 |
| DOIs | |
| Publication status | Published - Jun 2017 |
| Externally published | Yes |
Funding
The authors gratefully acknowledge the Innovation fund from High Density Power Laboratory at University of Electronic Science and Technology of China (UESTC). This work is also partly supported by the National Science Funds of China (Contract No. 51472044). The authors also thank Chengdu Interstellar Li-ion Battery Tech Co. Ltd for providing battery samples.
Keywords
- Coupled modeling
- Lithium-ion battery
- Tab arrangements
- Temperature distributions
- Thermal design
