The maximum temperature of the battery under two-phase liquid-immersion cooling remained below 33 °C during the test, and the temperature fluctuation of the battery was <1.4 °C, which was very beneficial to the efficiency and safety of the battery. Fig. 10.
Under the conditions set for this simulation, it can be seen that the liquid-cooling system can reduce the temperature rise of the battery modules by 1.6 K and 0.8 K at the end of charging and discharging processes, respectively. Fig. 15.
Four cooling strategies are compared: natural cooling, forced convection, mineral oil, and SF33. The mechanism of boiling heat transfer during battery discharge is discussed. The thermal management of lithium-ion batteries (LIBs) has become a critical topic in the energy storage and automotive industries.
Based on the figure, we concluded that using two-phase immersion liquid cooling can maintain the working temperature of the battery consistently at approximately 34 °C. Fig. 11. Temperature profile of the batteries subjected to SF33 cooling and repeated charging and discharging.
It is estimated that the volumetric energy density of this battery pack is approximately 350 Wh L−1 and the volume required by the battery thermal management system occupies 49 %. In future studies, cooling system components and design should be standardized to enable interchangeability and ease of maintenance.
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CN114497802A
CN114497802A CN202111663031.1A CN202111663031A CN114497802A CN 114497802 A CN114497802 A CN 114497802A CN 202111663031 A CN202111663031 A CN 202111663031A CN 114497802 A CN114497802 A CN 114497802A Authority CN China Prior art keywords battery liquid fire liquid supply temperature Prior art date 2021-12-31 Legal status (The legal …
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