Electrolyte sheet for solid oxide fuel cell, method for producing the same, and single cell for solid oxide fuel cell including the same
US9698443B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 27, 2013 |
| Grant date | Jul 4, 2017 |
| Priority date | — |
| Expiry date | Dec 20, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In at least one of principal surfaces of the electrolyte sheet for a solid oxide fuel cell of the present invention, (1) a burr height [ΔH (0-3)] in a first zone is 100 μm or less, as measured by irradiating the principal surface of the sheet with a laser beam at a pitch of 0.01 mm using a laser optical three-dimensional shape measurement device, the first zone being a zone extending between a peripheral edge of the sheet and a position 3 mm inside the peripheral edge, and (2) a ratio [ΔH (0.61-3)/ΔH (0-0.6)] of a burr height [ΔH (0.61-3)] in a third zone to a burr height [ΔH (0-0.6)] in a second zone is 0.5 or more and 2.0 or less, as calculated from the burr heights measured by irradiating the principal surface of the sheet with a laser beam at a pitch of 0.01 mm using the laser optical three-dimensional shape measurement device, the second zone being a zone extending between the peripheral edge of the sheet and a position 0.6 mm inside the peripheral edge, and the third zone being a zone extending between a position 0.61 mm inside the peripheral edge of the sheet and the position 3 mm inside the peripheral edge.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.