Air-depolarized cell
US4214044A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 31, 1979 |
| Grant date | Jul 22, 1980 |
| Priority date | — |
| Expiry date | May 31, 1999 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01M12/06
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The air-depolarized cell comprises a positive electrode having a catalytic mass, a negative electrode, an electrolyte disposed between the electrodes, a gas space above the assembly formed by the negative electrode and the electrolyte, a ventilation duct passing through the positive electrode to convey oxygen into the catalytic mass, and a source of oxygen which is separated from the said gas space by a wall impermeable to oxygen. In accordance with the invention the said duct is connected to the said source of oxygen by a tube impermeable to oxygen which is hermetically sealed to the said wall and to the catalytic mass which is situated entirely below the free surface of the electrolyte.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.