Recent advancements on thermal management of lithiumbatteries based on immersion liquid cooling

Jiang Yi1, Li Chaoen1, Wen Xiaodong1, Yu Hang2, Liu Dongjing3

2024.11.24

Battery thermal management systems play a crucial role in ensuring the safety of electric vehicles. However, with the increase of battery energy density and discharge power, traditional heat dissipation methods are no longer sufficient to meet the current requirements for effective battery cooling. Immersion liquid cooling battery thermal management systems have emerged as an efficient solution for electric vehicle power battery packs and power systems, garnering significant attention in recent years. Therefore, this review focuses on immersion liquid cooling technology for lithium-ion batteries, encompassing both single-phase and two-phase immersion liquid cooling approaches. The impact of coolant type, distribution, flow rate, pressure, and other factors on system performance is discussed alongside evaluation methods for assessing immersion liquid cooling efficiency. Furthermore, an analysis of the current industry trends pertaining to immersion liquid cooling technology in battery thermal management is provided. Finally, future prospects regarding the application of immersion liquid cooling in enhancing the thermal management of lithium batteries are forecasted herein, offering valuable insights towards developing higher-power electric vehicles that are safer and possess longer-lasting capabilities.