Why do EV batteries need a cooling plate?

With prismatic and pouch cells, the utilization of cooling plates allows a greater area of the battery pack to be cooled. Notably, the weight of the aluminum or copper cooling plate would dramatically increase the weight of the EV due to the large surface area of the battery pack that has to be cooled.

Is air cooling a good way to cool a battery pack?

Air cooling through natural ventilation is the cheapest and most simplistic mode of cooling for a battery pack but it does not provide sufficient cooling for most EV applications due to its low heat capacity and heat transfer coefficients .

Which type of coolant is best for a battery pack?

Similar to the cooling plate, the region cooled closest to the outlet would also have the worst cooling performance as the liquid coolant would absorb most of the battery pack’s heat at that point. Hence, a larger number of parallel tubes are preferred over a serpentine configuration.

What parameters should be considered in a battery cooling system?

The other parameter to be considered is the cooling channel leading up to the inlet and exiting the outlet. For an air cooled battery system, increasing the cooling channel’s size would improve the cooling efficiency of the system but would decrease the cooling uniformity of the system .

What is Valeo battery cooling?

The battery cells are “bathed” in a non electrically conductive liquid, keeping the temperature balance of the pack. Valeo has teamed up with TotalEnergies to provide an optimized dielectric battery cooling solution for EVs, both performance, weight, carbon footprint and cost wise. Valeo thermal management contribute to the performance of an EV.

How do you cool a lithium ion battery?

Most cooling methods are only able to cool the cell at the surface level as cooling the li-ion cell from the core would involve altering the composition of the cell itself which in turn would reduce the compactness and efficiency of the battery.