Seal tab for a metal-air electrochemical cell
US4649090A · kind A · utility
41Cited by
8References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 22, 1986 |
| Grant date | Mar 10, 1987 |
| Priority date | — |
| Expiry date | Jan 22, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2848
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A seal tab consisting of an acrylic adhesive applied to a biaxially-oriented three-ply synthetic paper of polypropylene is used as a sealing means for metal-air electrochemical cells, and batteries constructed thereof. The seal tabs prevent loss of rate capability and capacity due to interactions with the surrounding environment prior to the placement into service of metal air cells, yet without so isolating the cells such that the initial open circuit voltage is deemed unacceptable by the end user. Additionally, the seal tab, as provided, is easily and cleanly removed, which enhances the cell's consumer appeal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.