Technical Paper
Design and Comparison of Cooling Plates for a Prismatic Lithium-ion Battery for Electrified Vehicles
2018-04-03
2018-01-1188
An effective thermal management of lithium-ion battery (LIB) packs for maintaining their operating temperature uniformly and in the manufacturers’ allowable range can increase the battery lifespan for electric and hybrid vehicles. For this purpose, two liquid cooling plates with different flow patterns are designed and compared for a commercial prismatic LIB with graphite anode and lithium iron phosphate (LiFePO4) cathode chemistry. The analysis of the cooling plates is accomplished through mathematical modeling and computer simulation. The cooling plates are designed to dissipate the maximum possible heat generation in the battery in normal operation, which is during the continuous discharge at 5C for the typical LIB under study. An experiment is conducted to determine the local heat flux from the battery during discharge at 5C from the state of charge of 0 to 100%.
