Solid oxide fuel cell stack with reduced-leakage unit cells
US10790519B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 5, 2018 |
| Grant date | Sep 29, 2020 |
| Priority date | — |
| Expiry date | Jun 5, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Solid oxide fuel cell stacks and methods of sealing a planar solid oxide fuel cell. Unit cells within the stack each include a metal frame with a periphery that can both provide a support surface for a membrane electrode assembly, as well as form a fluid-tight seal with a bonded separator plate. The separator plate includes a peripheral lip that bounds a cell-receiving cavity such that a volumetric region is formed within the separator plate to receive at least a portion of the membrane electrode assembly to create a fluid-tight pathway for at least one of the reactants that is being introduced to a corresponding anode layer or cathode layer of the membrane electrode assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.