Patent ID: 9159979
Filing Date: 2015-10-13
Classification: H01M,Y02E,Y02P,Y10T

Abstract:
1. A single-ply layer comprising: a non-woven fabric as a main body having a plurality of first pores, the main body being at least partly filled with inorganic particles, the inorganic particles filling at least some of the plurality of first pores and forming particle-filled regions, wherein the inorganic particles in the particle-filled regions form a plurality of second pores in a labyrinthine structure in which dendritic interpenetration from one side to another of the single-ply layer cannot take place, an average diameter of the inorganic particles being greater than an average pore size of the plurality of second pores; and a crosslinked binder comprising an organic polymer, forming a network in the first pores and the second pores, wherein a thickness of the single-ply layer is less than 100 μm, and wherein the crosslinked binder is applied as an aqueous dispersion.