Refrigerant cycle with PCM cold storage for battery cooling during fast charging

Alois Steiner, Alexander Mladek, Lucas Winder, Rainer Sonnenberger, Roque Salazar-Alvear, Richard Cottet

Research output: Contribution to conferencePaperpeer-review


With the successful introduction of electric vehicles on the market, the upcoming chal-lenges are to achieve user friendliness, affordability and to build-up the necessary charging infrastructure. In order to ensure short charging times – especially for longer trips - high power charging (HPC) stations with charging powers between 100 and 350 kW are introduced. During high power charging a significant amount of heat is generated in the traction battery. This requires a sophisticated thermal management system for battery cooling to avoid an overheating of battery cells. In the present paper a refrigerant cycle with integrated cold storage containing a phase change material (PCM) including a related control strategy is presented and discussed. It enables an increase of the available power for battery cooling during fast charging. The results show an increase of 22% of the average battery cooling power compared to a state-of-the-art refrigerant cycle using the same compressor and heat exchangers.
Original languageEnglish
Publication statusPublished - 12 Oct 2022
Event31. Aachen Colloquium Sustainable Mobility - Aachen, Germany
Duration: 10 Oct 202212 Oct 2022


Conference31. Aachen Colloquium Sustainable Mobility


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