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

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

Virtual Vehicle Research GmbH (ViF) (98830)

Research output: Contribution to conference › Paper › peer-review

Abstract

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 language	English
Publication status	Published - 12 Oct 2022
Event	31. Aachen Colloquium Sustainable Mobility - Aachen, Germany Duration: 10 Oct 2022 → 12 Oct 2022

Conference

Conference	31. Aachen Colloquium Sustainable Mobility
Country/Territory	Germany
City	Aachen
Period	10/10/22 → 12/10/22

Cite this

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title = "Refrigerant cycle with PCM cold storage for battery cooling during fast charging",

abstract = "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.",

author = "Alois Steiner and Alexander Mladek and Lucas Winder and Rainer Sonnenberger and Roque Salazar-Alvear and Richard Cottet",

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T1 - Refrigerant cycle with PCM cold storage for battery cooling during fast charging

AU - Steiner, Alois

AU - Mladek, Alexander

AU - Winder, Lucas

AU - Sonnenberger, Rainer

AU - Salazar-Alvear, Roque

AU - Cottet, Richard

PY - 2022/10/12

Y1 - 2022/10/12

N2 - 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.

AB - 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.

M3 - Paper

T2 - 31. Aachen Colloquium Sustainable Mobility

Y2 - 10 October 2022 through 12 October 2022

ER -