Alkaline cell with gelled anode
US4963447A · kind A · utility
7Cited by
4References
8Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Feb 8, 1990 |
| Grant date | Oct 16, 1990 |
| Priority date | — |
| Expiry date | Feb 8, 2010 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01M4/06
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An alkaline cell having a gelled zinc negative electrode solely or mainly using, as a gelling agent to hold a zinc powder in an alkaline electrolyte, a granular crosslinking type branched polyacrylic acid, polymethacrylic acid or salts thereof. This gelling agent, holding an alkaline electrolyte, swells and properly maintains the thickness of the electrolyte, whereby the electrolyte can be sufficiently fed to a cell reaction portion and the alkaline cell is imparted with excellent drop resistance and shelf stability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.