Patent ID: 9431643
Filing Date: 2016-08-30
CPC Classification: H01M,Y02E

Claim Text:
1. A separator of a lithium-ion battery, comprising: a substrate membrane; and a coating provided on a surface of the substrate membrane, the coating comprising 10˜70 wt % of ceramic particles, 20˜80 wt % of a solid polymer wax and 5˜20 wt % of an adhesive, a melting point of the solid polymer wax being 85˜120° C., a relative molecular weight of the solid polymer wax being 1,000˜25,000, a particle size of the solid polymer wax being 0.5˜10 μm and the particle size of the solid polymer wax being larger than a pore size of the substrate membrane; wherein the coating further comprises 5˜15 wt % of a water-soluble polymer thickening agent.