Study on Enhanced Thermal performance of Underwater Lithium Ion Battery Packs

This In order to ensure that the underwater vehicle has a strong “heat”, Lithium batteries with a higher specific energy and specific power are often used as a power source. However, the thermal runaway of lithium batteries during long time current discharge seriously restricts the wide application of lithium batteries in underwater vehicles. Therefore, this paper focuses on the heat dissipation characteristics of the underwater vehicle battery cabin. In the heat transfer scheme for the gases-conducting heat medium, it is found than helium significantly reduces the temperature of the battery cabin. In addition, adding 10%-20% helium to the air can completely reduce the heat dissipation effect of the helium gases.