1results about How to "Good electrolyte wettability" patented technology

This invention relates to the field of battery technology, specifically to a separator, comprising a base film layer, a first coating layer located on one side of the base film layer, and a second coating layer located on the other side of the base film layer; the first coating layer comprises a sponge-like porous structure; the first coating layer comprises a polymer continuous phase and a porous structure, first inorganic particles, and first polymer particles dispersed in the polymer continuous phase, the polymer continuous phase, the porous structure dispersed in the polymer continuous phase, and the first inorganic particles forming a sponge-like porous structure; the first polymer particles form protrusions on the side of the first coating layer facing away from the base film layer; the second coating layer comprises second inorganic particles and second polymer particles, each independently forming a ceramic layer and a polymer layer, or mixed together to form a ceramic-polymer blend layer. The separator of this invention has excellent resistance to foreign object puncture and interfacial heat transfer efficiency, which can significantly improve the safety performance and cycle performance of the battery.