Water vs oil temperature controller

Direct Answer: Lithium battery separator production requires extremely precise thermal management. For extrusion and stretching processes operating below 160°C (such as in wet-process lines), pressurized water temperature controllers offer superior heat transfer efficiency and cleanroom compatibility. However, for specialized dry-process stretching or high-temperature coating stages that exceed 180°C, high-temperature oil controllers become essential due to their stable operation at lower systemic pressures. The Critical Role of Temperature in Separator Production The lithium-ion battery separator is a critical micro-porous membrane placed between the anode and cathode. Its primary function is to prevent physical contact between the electrodes while allowing the free transfer o...