Electrochemical cell
US11961963B2 · kind B2 · utility
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19Claims
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Key dates
| Filing date | May 20, 2016 |
| Grant date | Apr 16, 2024 |
| Priority date | — |
| Expiry date | Dec 31, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A sodium electrochemical cell that supports a current density at the negative electrode of at least 500 μA/cm2, the electrochemical cell comprising (i) a negative electrode and (ii) a sodium-ion ionic liquid electrolyte having a sodium-ion concentration that is no less than 75% of its saturation limit in the electrolyte, wherein the negative electrode has a solid-electrolyte interphase (SEI) layer formed as a result of the electrochemical cell having undergone a polarisation cycle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.