LIQUI MOLY introduces battery coolant for electric vehicles

LIQUI MOLY, an automotive chemical specialist headquartered in Ulm, Germany, is expanding its product range for all-electric vehicles (EV) with Battery Coolant EV 200.

The new Battery Coolant EV 200, where EV stands for Electric Vehicle, fulfills an important purpose. It acts as a thermal manager. This is necessary because the technology of electric and hybrid vehicles only functions optimally in certain temperature windows. The range between 15 °C and 40 °C is ideal for lithium-ion batteries. 

“Thermal management is extremely important, because it has an impact on the range,” says David Kaiser, head of Research and Development at LIQUI MOLY. The range of the vehicle depends on its energy consumption. And the temperature affects the service life of the battery and engine.

For this reason, the temperature of the battery should be kept constant. Depending on the outside climate, it is cooled or heated. With the thermal management system, a distinction is made between direct and indirect battery cooling. This indirect system is more complex, but necessary, as the vehicle batteries are becoming increasingly powerful and therefore significantly hotter.

For this indirect cooling of the battery segment, which is the case with models from Hyundai and Kia, for example, a special fluid is required. It ensures that the battery never gets hotter than 60°C in the summer and that the temperature constantly remains within the ideal range between 15°C and 40°C, even in winter.