Patent ID: 8492021
Filing Date: 2013-07-23
Classification: C04B,H01M,Y02E,Y10T

Abstract:
1. A laminated electrode and porous separator film combination including a solid electrolyte salt within the porous separator film, the combination comprising; layer of powdered cathode material adhering to a surface of a separator film with a solid electrolyte therebetween, the separator film comprising 50% to 95% by weight of electrically non-conductive ceramic fibers having a coating of magnesium oxide on the surface of the fibers in an amount in the range of 5% to 50% by weight; wherein theceramic fibers comprise Al 2 O 3 ,and AlSiO 2 ; and the magnesium oxide coating interconnects the ceramic fibers providing a porous network of magnesium oxide-coated fibers having a porosity of not less than 50% by volume; the pores of the network containing a solid electrolyte salt in an amount of up to 95% by volume based on pore volume of the network.