Continuous production of gas diffusion electrodes
US4336217A · kind A · utility
36Cited by
5References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 15, 1980 |
| Grant date | Jun 22, 1982 |
| Priority date | — |
| Expiry date | Oct 15, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In the continuous manufacture of plastic-cohered gas diffusion electrodes, and particularly air electrodes, in the form of thin foils, a dry mixture of PTFE and active carbon powder is subjected, during the mixing process in a paddle mixer, to the additional intensive influence of rapidly rotating cutting knives. The degree of subdivision and homogeneity of the dry mixture is thereby enhanced to such a degree that, in the finished electrode tape, the mass does not exhibit nonuniform thickening.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.