Metal-air cathode can having reduced corner and electrochemical cells made therewith
US6280876A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 30, 1999 |
| Grant date | Aug 28, 2001 |
| Priority date | — |
| Expiry date | Aug 30, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/4911
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
This invention pertains to electrode cans and metal air electrochemical cells made with the electrode cans. The invention provides improvide structure, and methods for making the outer edge of the closed end of the can at the joinder of the closed end of the can with an side wall extinding from the closed end. A substantially flat portion of the outer surface of the closed end of the can extends outwardly of the inner surface of the side wall. The electrochemical cells are assembled using improved assembly methods. Button-type electrochemical cells made using the invention are free of the inward dishing common to especially cathode cans in such button cells.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.