Microporous Polyolefin Composite Film Having Excellent Heat Resistance and Thermal Stability and Method for Manufacturing the Same

摘要

The following disclosure relates to a microporous polyolefin composite film having excellent heat resistance and thermal stability, and a method for manufacturing the same. More particularly, the present invention relates to a microporous polyolefin composite film capable of improving stability and reliability of a battery by heat sealing an edge of a microporous film provided with a coating layer that includes a polymer binder and inorganic particles, and a method for manufacturing the same.

主权项

1. A microporous polyolefin composite film comprising a coating layer including a polymer binder and inorganic particles on one surface or both surfaces of a microporous polyolefin film, wherein the coating layer is formed to be spaced apart from an edge line of the microporous polyolefin film by a predetermined width, and a portion of the spaced portion is heat sealed.