Electrochemical cell activated with a liquid electrolyte wetting the electrode assembly through an opening in one of the electrodes
US12021248B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 14, 2021 |
| Grant date | Jun 25, 2024 |
| Priority date | — |
| Expiry date | Mar 22, 2042 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A miniature electrochemical cell of a primary or a secondary chemistry with a total volume that is less than 0.5 cc is described. The cell has a casing comprising an annular sidewall supported on a lower plate opposite an upper closure plate. The upper plate has a sealed electrolyte fill port. A current collector having an opening aligned with the fill port contacts an inner surface of the upper plate. An anode active material contacts the lower plate, and a cathode active material contacts the upper closure plate. A dielectric material coats the lower open end of the annular sidewall and a portion of the inner surface of the sidewall. A glass seals the dielectric material to the lower plate. An electrolyte contacts the electrode assembly. The cathode active material contacting the current collector has an opening aligned with the current collector opening and the electrolyte fill port.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.