Closed loop systems and methods for recycling lead acid batteries
US10793957B2 · kind B2 · utility
1Cited by
51References
17Claims
0Family size
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Key dates
| Filing date | May 13, 2016 |
| Grant date | Oct 6, 2020 |
| Priority date | — |
| Expiry date | Aug 1, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W30/84
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A closed loop electrochemical process of recovery of high-purity lead uses continuous formation of adherent lead on a cathode from an electrolyte that is used to dissolve desulfated lead paste. Preferred cathodes include aluminum containing cathodes that are operated in methane sulfonic acid to produce a micro- or nanoporous mixed matrix metallic composition and lead dioxide formation at the anode is avoided using appropriate anode configurations or operating conditions
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.