Shell and TotalEnergies have both announced partnerships to develop electric vehicle battery immersion cooling fluids, signaling a continued positioning of e-mobility as a strategic priority by energy majors.
Most passenger car EV batteries are indirectly cooled by pumping a fluid around cells to draw heat away. Liquid immersion puts the fluid in direct contact with battery cells, allowing for more even cooling and optimization of performance. Battery immersion cooling is more common in data centers and high-performance EVs. Applications in cars are limited to high-end models due to its relatively higher cost, added complexity, material compatibility and extra weight.
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