Delayed liquid cooling strategy with phase change material to achieve high temperature uniformity of Li-ion battery under high-rate discharge
By Jiahao Cao, Ziye Ling, X. Fang, Zhengguo Zhang. 2020
166 citations recorded by the source corpus.
Abstract This work aims at achieving high temperature uniformity of large battery modules during high C-rate discharge with a low flowrate fluid. A new scheme of delayed liquid cooling combing phase change material (PCM) and liquid cooling is proposed for a Li-ion battery pack with 40 cylindrical cells. A heatsink is designed and optimized with a numerical model, then a real cooling plate is manufactured and its performance is verified with experiment. The results show the low cooling temperature of liquid could increase the temperature difference of the battery pack and reduce the discharge capacity. Therefore, a high inlet water temperature should be the priority if the battery temperature is within the limit. Compared with traditionally continued cooling, delayed cooling system shows better performance especially under high discharge current up to 4C with a cooling flowrate of 40 L/h. Delayed cooling significantly reduces the temperature difference between batteries and within a battery. Furthermore, this new cooling mode shortens the period of liquid cooling thereby saving the power consumption of the system. This hybrid cooling system can be useful in the design of battery thermal management for the battery used under high-rate discharge during climbing hills or other high-power cases.
Subfields: Automotive Engineering, Electrical and Electronic Engineering
View Paper: https://www.semanticscholar.org/paper/0ee0777a5ef0d0aa8917a57dfc688e523065aca7
How researchers see this paper
The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.
In Automotive Engineering
In Electrical and Electronic Engineering
Citations in the corpus
- A review on thermal management of lithium-ion batteries for electric vehicles (2022, background): “Many scholars have carried out numerical simulation for the cooling method of PCM to improve its cooling uniformity[94-96].”
- A review on recent progress, challenges and perspective of battery thermal management system (2021, background): “Once the flowrate exceeds a threshold, further increase of the flowrate only reduces marginally the maximum temperature of the battery pack but will significantly raise the axial temperature and the power consumption [128].”