Binary lead-tin alloy substrate for lead-acid electrochemical cells
US5120620A · kind A · utility
16Cited by
3References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 24, 1990 |
| Grant date | Jun 9, 1992 |
| Priority date | — |
| Expiry date | Aug 24, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A binary lead-tin alloy substrate for support of the electrochemically active material in lead-acid cells is disclosed having a tin concentration from about 0.3 to about 0.9 weight percent, the balance being lead. The tin impedes the formation of a passivation layer at the interface between the grid material and the active material improving cell recovery from deep discharge and improving cold cranking amperes performance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.