One of the significant problems with electric vehicle batteries is how they heat up. Thermal management of batteries is a big challenge, especially in the case of fast charging. The faster (i.e., more powerfully) a battery is charged or discharged, the more heat it will generate. Overheating the battery has a negative impact on its service life, and in extreme cases may lead to its failure (e.g. thermal runaway).
We have decided to tackle this problem. As part of the e-Pionier project, our team carried out a project of a proprietary battery thermal management system using liquid cooling and phase change materials.
The project was implemented in cooperation with trolleybus operator in Gdynia, the City of Gdynia and EXCENTO (a special purpose entity of the Gdańsk University of Technology).
The result of the project was a prototype that allows the battery to be charged in 6 minutes without overheating. The project was further developed and as a result an implementation of a full scale cooling system was carried out with the manufacturer of electric buses SEE MORE.