Patent ID: 7815887
Filing Date: 2010-10-19
Classification: D04H,H01B,H01M,Y02E,Y10T

Abstract:
1. A method for producing conductive nonwoven fabric strip, bonded only by hydroentanglement, containing at least one of carbonized and graphitized fibers, the method comprising: forming a fiber sheet of preoxidized fibers having a mass per unit area of 30 to 300 g/m bonding the fiber sheet by high pressure jets at pressures of 100 to 300 bar; compressing the bonded nonwoven fiber fabric by calendaring by 50 to 90% of its starting thickness; carbonization and/or graphitization of the bonded non-woven fabric under an inert gas atmospheres at 800° C. to 2500° C. to thereby form a conductive nonwoven fabric; said nonwoven fabric having a bending rigidity of less than 8 taber, a density of between 0.1 g/cm