Strengthening of carbon black-teflon-containing electrode
US4405544A · kind A · utility
17Cited by
12References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 16, 1982 |
| Grant date | Sep 20, 1983 |
| Priority date | — |
| Expiry date | Feb 16, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.