Technical Paper
THERMAL CHARACTERIZATION OF LITHIUM-ION BATTERIES UNDER VARYING OPERATING CONDITIONS
2024-04-09
2024-01-2667
Lithium-ion batteries have become integral to many consumer electronics, electric vehicles, and renewable energy storage systems. Despite their widespread adoption, concerns related to thermal management persist, primarily due to the heat generated during their operation. The heat generated during lithium-ion battery operation adversely affects its performance, efficiency, safety, and lifetime. Hence, the thermal characterization of lithium-ion batteries is important for both the optimization of the battery cells and the design of the thermal management system for battery packs. This study presents an experimental investigation of heat generation of Li-ion batteries under different operating conditions, including charge-discharge rates, ambient temperatures, and states of charge. The experiments were conducted using a custom-designed multifunctional calorimeter, enabling precise measurement of the heat generation rate of the battery.