Electrolyte additives for magnesium air batteries
US10637117B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 29, 2017 |
| Grant date | Apr 28, 2020 |
| Priority date | — |
| Expiry date | Dec 31, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention relates to electrolyte additives for magnesium air batteries, which are compatible with rechargeable magnesium batteries and carry the promise of overcoming the hurdles, especially enhancing the overall performance of magnesium air batteries comprising an aqueous electrolyte. The electrolyte additive for a magnesium battery comprising a chelating agent which is capable of forming a complex with at least one of Fe(II), and Fe(III) ions, where the complex with at least one of Fe(II) and Fe(III) ions has a stability constant in aqueous solution at room temperature (about 25° C.) log K of greater than or equal to 6.0 and which is also capable of forming a complex with Mg(II) ions where the complex with Mg(II) ions has a stability constant in aqueous solution at room temperature (about 25° C.) log K of greater than or equal to 4.0.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.