Patent ID: 6730439
Filing Date: 2004-05-04
Classification: B32B,H01G,H01M,Y02E,Y10T

Abstract:
A laminated heat-resistant separator, comprising:a laminated non-woven fabric, comprising: at least two laminated non-woven fabric layers, including at least one non-woven fabric layer comprising a high-melting resin and having: an average fiber diameter of 1 to 20 &mgr;m, a basis weight of 5 to 300 g/m2, air permeability of 1 to 300 cc/cm2/sec, and a thickness of 0.01 to 1.0 mm, wherein said at least two laminated non-woven fabric layers are laminated such that at an interface between layers, only a top and/or bottom surface of a layer is in communication with only a top and/or bottom surface of a subsequent layer.