Lithium battery immersion charging

Does immersion cooling work for lithium ion batteries?

This study analyzed the effectiveness of an immersion cooling method for lithium–ion batteries using a battery module that consisted of 24 pouch LiCoO2 batteries. The following sections provide a detailed description of thermo-physical property calculations, governing equations, and boundary conditions of the immersion cooling system.

Does immersion cooling reduce the temperature rise of the battery module?

Compared with natural cooling, immersion cooling can effectively reduce the temperature rise of the battery module. To further examine the applicability of this cooling method, the immersion cooling performance of the 8S3P battery module with five different coolants at high discharging rates (4C, 6C, and 8C) was analyzed.

Is immersion method a good option for battery thermal management systems?

It can be understood from the literature survey that the immersion method can be a good option for battery thermal management systems. In the literature, there is a limited number of research on immersion cooling of prismatic Li-ion batteries and heat transfer oils and hydrofluoroethers are selected as working fluids.

Do immersion cooling systems reduce thermal runaway in lithium ion batteries?

In addition, immersion cooling systems typically inhibit thermal runaway because some dielectric fluids tend to be flame retardants, thereby increasing the safety of lithium battery packs. Karimi et al. performed a thermal analysis of lithium– ion battery cells using air, a silicone oil, and water as coolants.

What is the immersion cooling model of the battery module?

The immersion cooling model of the battery module is shown in Fig. 1, where the active material part of the battery was completely immersed in the coolant, and the dimensions of the immersion battery module were 346×38×128 mm. The thickness of the fluid domain on the side of the battery module and between each row of the cells was all 2 mm.

What are the safety implications of battery immersion cooling?

Safety implications of battery immersion cooling discussed. Research gaps in battery immersion cooling presented. Battery thermal management systems are critical for high performance electric vehicles, where the ability to remove heat and homogenise temperature distributions in single cells and packs are key considerations.