Concave gas vent for electrochemical cell
US9269998B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 12, 2014 |
| Grant date | Feb 23, 2016 |
| Priority date | — |
| Expiry date | Jun 18, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/36
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention provides an electrochemical cell system comprising: a fuel electrode, an oxidant electrode for absorbing and reducing a gaseous oxidant, and an interior cell chamber configured to contain a volume of ionically conductive liquid therein. The ionically conductive liquid conducts ions between the fuel and oxidant electrodes. The oxidant electrode separates the ionically conductive liquid from the gaseous oxidant. A gas vent is configured to separate gas in the cell from a mist comprising the ionically conductive liquid and is positioned generally above the volume of ionically conductive liquid. The gas vent comprises a filter body portion comprised of at least one layer so as to absorb a portion of the ionically conductive liquid. The body portion is formed in a concave shape with an apex positioned towards the top of the cell in its upright orientation, and with body surfaces extending downwardly from said apex so as to drain absorbed ionically conductive medium back into the interior chamber. The body portion contains pores so as to permit permeation of the gas therethrough.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.