Samenvatting
Controlling the temperature of a battery pack within an optimal range and ensuring uniform temperature distribution
are the key to improving battery life. With the elevating energy density of batteries, more efficient and
energy-saving thermal management system is urgently required for improving electric vehicle (EV) performance
in terms of safety and long-term durability. In this work, a novel hybrid thermal management system towards a
high-voltage battery pack for EVs is developed. Both passive and active components are integrated into the
cooling plate to provide a synergistic function. A 35kWh battery pack incorporated with electrical, mechanical
and thermal management components was designed, manufactured and integrated. As the core hardware, a
pack-level cooling plate set was innovatively designed by integrating with phase change material (PCM). The
results show that the combined passive and active cooling strategy ensured a desirable working temperature
below 40˚C and a uniform heat distribution across the entire pack at discharging rates ranging from 0.5C to 1.5C
under customized control strategies. Moreover, the cycling performance of air cooling and hybrid cooling, as well
as the thermal insulation performance at both battery module level and pack level are compared, demonstrating
the superior thermal management capability of the hybrid solution.
are the key to improving battery life. With the elevating energy density of batteries, more efficient and
energy-saving thermal management system is urgently required for improving electric vehicle (EV) performance
in terms of safety and long-term durability. In this work, a novel hybrid thermal management system towards a
high-voltage battery pack for EVs is developed. Both passive and active components are integrated into the
cooling plate to provide a synergistic function. A 35kWh battery pack incorporated with electrical, mechanical
and thermal management components was designed, manufactured and integrated. As the core hardware, a
pack-level cooling plate set was innovatively designed by integrating with phase change material (PCM). The
results show that the combined passive and active cooling strategy ensured a desirable working temperature
below 40˚C and a uniform heat distribution across the entire pack at discharging rates ranging from 0.5C to 1.5C
under customized control strategies. Moreover, the cycling performance of air cooling and hybrid cooling, as well
as the thermal insulation performance at both battery module level and pack level are compared, demonstrating
the superior thermal management capability of the hybrid solution.
| Originele taal-2 | English |
|---|---|
| Artikelnummer | 114676 |
| Pagina's (van-tot) | 1-12 |
| Aantal pagina's | 12 |
| Tijdschrift | Energy Conversion and Management |
| Volume | 247 |
| DOI's | |
| Status | Published - 1 nov. 2021 |
Bibliografische nota
Funding Information:The battery pack test campaign and the research work have been performed in the Testing Centre of China North Vehicle Research Institute. This research is part of the Science and Technology Project of State Grid of China with fund number 5500-201958507A-0-0-00.
Funding Information:
The battery pack test campaign and the research work have been performed in the Testing Centre of China North Vehicle Research Institute. This research is part of the Science and Technology Project of State Grid of China with fund number 5500-201958507A-0-0-00.
Publisher Copyright:
© 2021 The Authors
Copyright:
Copyright 2021 Elsevier B.V., All rights reserved.