Patent ID: 7144476
Filing Date: 2006-12-05
Classification: C04B,D21H,H01M,Y02E,Y02P,Y10T

Abstract:
1. A carbon fiber electrode substrate comprising a paper made from carbon fibers, wherein the entirety of the carbon fiber employed have a diameter of from about 6 to about 10 μm, said carbon fibers further having a mean length of from about 3 to about 20 mm, wherein at least a part of the voids between the fibers constituting the paper are filled with (i) carbonaceous particles (ii) carbonized or graphitized residue from a carbonizable or carbonizable binder, wherein the thickness of the paper is from 0.05 to 0.4 mm, the bending radius to which the paper can be subjected without breaking is 250 mm, and 90% of the mass of the carbonaceous particles is graphitic.