초록 ▼

This disclosure is directed to strengthening carbon-black particulate “Teflon”(PTFE) mixes destined to be formed into active layers in air cathodes, which comprises mixing an aqueous dispersion of particulate polytetrafluoroethylene with an aqueous suspension of particulate carbon-black; washing and

This disclosure is directed to strengthening carbon-black particulate “Teflon”(PTFE) mixes destined to be formed into active layers in air cathodes, which comprises mixing an aqueous dispersion of particulate polytetrafluoroethylene with an aqueous suspension of particulate carbon-black; washing and drying; mixing with a pore-forming agent; fibrillating said mixtures; washing and drying; adding polytetrafluoroethylene fibers while chopping said dried fibrillated mixture and thereafter forming said chopped mixture into a sheet, which was washed and dried.

대표청구항 ▼

A method for preparing an electrode active layer comprising mixing an aqueous dispersion of particulate polytetrafluoroethylene with an aqueous suspension of particulate carbon black; washing and drying; mixing with a pore-forming agent; fibrillating said mixture; drying; adding polytetrafluoroethyl

A method for preparing an electrode active layer comprising mixing an aqueous dispersion of particulate polytetrafluoroethylene with an aqueous suspension of particulate carbon black; washing and drying; mixing with a pore-forming agent; fibrillating said mixture; drying; adding polytetrafluoroethylene fibers while chopping said dried fibrillated mixture and thereafter forming said chopped mixture into a sheet, which was washed and dried.