Metal-alloy air battery
US4894295A · kind A · utility
Inventor
Key dates
| Filing date | Sep 14, 1988 |
| Grant date | Jan 16, 1990 |
| Priority date | — |
| Expiry date | Sep 14, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01M12/06
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A metal-air battery has a base for containing the active battery materials and a lid located on top of and fitted with the base. The flexible bottom surface of the base is curved to permit an expansion of the battery container during battery discharge. The air cathode is retained by a ledge in the base as well as by channels in the lid to prevent separation between the electrolyte and the air cathode membrane during battery discharge. An air chamber housing having inlet and outlet air ducts is located above the air cathode membrane for continuous air flow and optimal battery operation. The air ducts are sealed during storage to extend the shelf life of the battery.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.