Thermal behavior analysis of retired batteries based on thermo-electric coupling model
Thermal behavior analysis of retired batteries based on thermo-electric coupling model
复制标题
DOI：
10.23919/ccc55666.2022.9902559
复制
发表时间：
2022-07
期刊：
影响因子：
--
通讯作者：
Ze Zhang;Yichao Li;Pingwei Gu;Peng Huang;Bin Duan;Chenghui Zhang
中科院分区：
文献类型：
--
作者：
Ze Zhang;Yichao Li;Pingwei Gu;Peng Huang;Bin Duan;Chenghui Zhang
With the increasing production and sales of electric vehicles worldwide, the demand for raw materials of lithiumion batteries is increasing, and a large number of lithiumion batteries will be eliminated from electric vehicles. A large number of retired batteries of electric vehicles can provide considerable economic benefits through secondary utilization such as energy storage. However, there are some problems in the secondary utilization of retired lithiumion batteries. It is difficult to study the thermal behavior of large quantities of retired batteries. In order to solve this problem, the second-order battery equivalent circuit is coupled with the three-dimensional thermal model, and the distributed decommissioned battery thermo-electric coupling model is established. On this basis, the thermal behavior of five single batteries in retired battery pack was simulated and analyzed. The results show that the higher the aging degree is, the faster the heating rate of the battery is, and the temperature distribution of the battery is also different during discharge.
