Grid for lead storage batteries
US4761356A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 27, 1986 |
| Grant date | Aug 2, 1988 |
| Priority date | — |
| Expiry date | Oct 27, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
This invention relates to a grid for a lead storage battery which comprises a network unit (5) formed from a lead alloy sheet (1) of a first alloy layer (2) of a lead-calcium alloy and a second alloy layer (3) of a lead-tin alloy having a higher concentration of tin than the first alloy layer, the first alloy layer (2) and the second alloy layer (3) being exposed at slits of the network unit. The use of such a grid can provide a lead storage battery which has both good maintenance-free characteristics inherent to the lead-calcium alloy and good recovery after overdischarge resulting from the second alloy having a high concentration of tin. Thus, the storage battery is highly reliable.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.