Patent ID: 9293752
Filing Date: 2016-03-22
CPC Classification: B32B,H01G,H01M,Y02E,Y10T

Claim Text:
1. A separator for a non-aqueous electrolyte battery comprising a multilayer porous membrane comprising a porous layer containing an inorganic filler and a resin binder adhered to at least one surface of a polyolefin resin porous membrane, wherein the porous layer simultaneously satisfies the following (A) to (C): (A) the inorganic filler has an average particle diameter of 0.1 μm or more and 3.0 μm urn or less, (B) a ratio of an amount of the resin binder to a total amount of the inorganic filler and the resin binder is 0.5% or more and 8% or less in terms of volume fraction, (C) a ratio of a layer thickness of the porous layer to a total layer thickness of the porous layer and the polyolefin resin porous membrane is 15% or more and 50% or less, and wherein a maximum MD value of a load generated as the polyolefin resin porous membrane was heated from temperature of 30° C. to 200° C. is 7 g or less.