Hebei Messi Biology Co., Ltd. stated that the following facilities and raw materials are needed when preheating the lithium battery diaphragm: including a heating box, wherein the heating box is provided with heating elements symmetrically distributed about the diaphragm, wherein the heating element is provided with a magnesium oxide powder plate, wherein the magnesium oxide powder plate is provided with an electric heating wire, and the output end and input end of the electric heating wire are installed through a fixing mechanism provided on the inner wall of the heating box.
When preheating the lithium battery diaphragm, the temperature can be controlled. When the magnesium oxide powder plate heats the liquid oil to a certain temperature, the heating is stopped. When the oil temperature drops, the magnesium oxide powder plate is reheated to increase the oil temperature. The diaphragm can be heated on both sides, so that the front and back sides of the diaphragm are heated uniformly, so that the aperture of the stretched micropores meets the composite requirements. The single-sided preheating effect is excellent, and the heating element is parallel to the diaphragm surface, so that the single side of the diaphragm is heated evenly during preheating, and the diaphragm has an excellent preheating effect when passing through the heating box.
The magnesium oxide for battery separators independently developed and produced by Hebei Messi Biology Co., Ltd. is a new type of nanomaterial with obvious small size, large surface effect, quantum size effect and macro tunnel effect. The surface is modified and there is no agglomeration phenomenon. It has better dispersibility and higher nano activity in the system, thereby maximizing the light, electricity, magnetic field, heat and quantum effects of nano magnesium oxide particles, greatly improving the performance of products with added nano magnesium oxide. Therefore, it is widely used in battery materials to improve the cyclability and charge and discharge times of batteries and extend the service life of batteries.