Method for making positive grids and lead-acid cells and batteries using such grids
US6351878B1 · kind B1 · utility
18Cited by
5References
8Claims
0Family size
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Key dates
| Filing date | Apr 3, 1999 |
| Grant date | Mar 5, 2002 |
| Priority date | — |
| Expiry date | Apr 3, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49108
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method for making positive grids for lead-acid batteries from calcium-tin-silver lead-based alloys comprises casting an alloy strip and then rolling the strip at a temperature between about the solvus temperature and the peritectic temperature of the alloy, quenching the rolled strip, then, preferably, heat aging at a temperature of 200° F. to 500° F., and fabricating into the positive grid, such grids having enhanced mechanical and high temperature corrosion resistance characteristics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.