What are the cooling strategies for lithium-ion batteries?

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.

Can lithium-ion batteries be used as energy storage systems?

As electric vehicles (EVs) are gradually becoming the mainstream in the transportation sector, the number of lithium-ion batteries (LIBs) retired from EVs grows continuously. Repurposing retired EV LIBs into energy storage systems (ESS) for electricity grid is an effective way to utilize them.

Does liquid-cooling reduce the temperature rise of battery modules?

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.

Can lithium batteries be cooled?

A two-phase liquid immersion cooling system for lithium batteries is proposed. Four cooling strategies are compared: natural cooling, forced convection, mineral oil, and SF33. The mechanism of boiling heat transfer during battery discharge is discussed.

What is direct liquid-cooling technology for battery thermal management?

Recently, the direct liquid-cooling technology for battery thermal management has received significant attention. The heat generated from the battery is absorbed directly by sensible (single-phase) cooling or latent heat (two-phase) cooling of the liquid with no thermal contact resistance.

What is the maximum temperature of battery under two-phase liquid-immersion cooling?

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.