Lead-acid batteries and pastes therefor
US9281520B2 · kind B2 · utility
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10References
15Claims
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Key dates
| Filing date | Mar 30, 2012 |
| Grant date | Mar 8, 2016 |
| Priority date | — |
| Expiry date | Mar 30, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A paste suitable for a negative plate of a lead-acid battery comprises at least (a) a lead-based active material and an expander mixture comprising (b) carbon, (c) barium sulfate and (d) a lignosulfonate, wherein at least part of at least two of said components (a) to (d) are present in the paste as composite particles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.