Electric vehicles can arguably considered to be a vital aspect of the energy transition. They are however also a recurring hazard. The fire departments in the Netherlands estimate that they encounter fire incidents with light weight electric vehicles at least once a month. This is often the result of a bad battery pack design, and could have been prevented with a more reliable BMS or a more decent assemblage. The partners of the accumulate project (listed below) regard this as unacceptable, aim to steer away from mass produced battery packs of unknown quality, and move towards a local assembly of battery packs.
The Power Electronics and EMC (PE) group collaborates with the Inorganic Materials Science (IMS) group as we both take up the role to provide scientific support to our partners in the accumulate project. The focus of PE group herein lies on the battery pack level, while the IMS group concentrates on the battery cells. The Accumulate project provides us with the ability to conduct case studies on battery packs operating at different power levels, and in their own specific environments and user-case scenarios. Our initial attention lies at an impedance assessment of the battery packs during particular discharge strategies, with which we can provide suggestions for reducing the degradation of battery cells per cycle.
Power Electronics and EMC Group (University of Twente)
Inorganic Materials Science Group (University of Twente) https://www.utwente.nl/en/tnw/ims/
Van Raam https://www.vanraam.com/
DNV GL https://www.dnvgl.nl/
Twente Safety Campus https://www.twentesafetycampus.nl/nl/homepage/