Liquid cooling, due to its high thermal conductivity, is widely used in battery thermal management systems. This paper first introduces thermal management of lithium-ion batteries and liquid-cooled BTMS.
By establishing a finite element model of a lithium-ion battery, Liu et al. proposed a cooling system with liquid and phase change material; after a series of studies, they felt that a cooling system with liquid material provided a better heat exchange capacity for battery cooling.
The simplified single lithium-ion battery model has a length w of 120 mm, a width u of 66 mm, and a thickness v of 18 mm. As shown in the model, the liquid cooling system consists of five single lithium-ion batteries, four heat-conducting plates and two cooling plates.
Discussion: The proposed liquid cooling structure design can effectively manage and disperse the heat generated by the battery. This method provides a new idea for the optimization of the energy efficiency of the hybrid power system. This paper provides a new way for the efficient thermal management of the automotive power battery.
In general, air and liquid cooling systems can take away the heat generated by a lithium-ion battery by using a medium such as air or water to ensure that the lithium-ion battery's temperature is within a certain range.
However, lithium-ion batteries are temperature-sensitive, and a battery thermal management system (BTMS) is an essential component of commercial lithium-ion battery energy storage systems. Liquid cooling, due to its high thermal conductivity, is widely used in battery thermal management systems.