System and method for initializing and operating metal-air cell
US11228067B2 · kind B2 · utility
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10Claims
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Key dates
| Filing date | Dec 14, 2017 |
| Grant date | Jan 18, 2022 |
| Priority date | — |
| Expiry date | Apr 7, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method and system for creating low corrosion passivation layer on an anode in a metal-air cell comprise asserting high negative potential and low drawn current density on the cell after its operational parameters have stabilized after the cell has been powered-on. As a result the H2 evolution rate momentarily raises and then drops sharply, thereby causing the creation of a passivation layer on the face of the anode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.