US4396480A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solid electrolyte sheet
Assignee: WR Grace and Co Conn
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Filing: 1982-02-02
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Granted: 1983-08-02
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Expires: 2002-02-02
Abstract
Abstract Disclosed herein are ribbed catalyst-coated solid-state electrolyte sheets as well as a method for producing such sheets. Also disclosed is a fuel cell reactor comprising a plurality of said sheets stacked one upon another and cemented together to form a monolithic structure. Novel reactions utilizing the reactor to produce useful chemical oxidation products and/or electricity are set forth. Also disclosed is a novel wiring system to collect electrical power generated by the reactor.
Inventors
- 👤 Louis Hegedus
- 👤 Christian B. Lundsager
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:28
CPC Classifications
C; C25; C25B; C25B13/00; C25B13/02; C25B9/00; C25B9/17; C25B9/19; C25B9/21; C25B9/70; C25B9/73; C25B9/77; H; H01; H01M; H01M8/00; H01M8/10; H01M8/12; H01M8/1231; H01M8/124; H01M8/1246; H01M8/1253; H01M8/24; H01M8/241; H01M8/2425; H01M8/2435; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/50; Y02P; Y02P70/00; Y02P70/50
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
97 words
An essentially planar, fluid-impermeable ceramic sheet possessing first and second parallel surfaces on each side, said sheet possessing a plurality of essentially parallel load-bearing ribs originating in the first surface and extending generally perpendicularly therefrom to a uniform height, said ribs defining a plurality of channels for transporting gaseous materials when the sheets are stacked upon each other, said sheet composed of a solid electrolyte capable of transporting oxygen ions and wherein the channels are coated with an essentially continuous layer of an electrically conductive material for catalyzing chemical reactions in gaseous materials transported through said channels.
Claim 2
Dependent Claim
97 words
An essentially planar, fluid-impermeable ceramic sheet possessing first and second parallel surfaces on each side, said sheet possessing a plurality of essentially parallel load-bearing ribs originating in the first surface and extending generally perpendicularly therefrom to a uniform height, said ribs defining a plurality of channels for transporting gaseous materials when the sheets are stacked upon each other, said sheet composed of a solid electrolyte capable of transporting oxygen ions and wherein the channels are coated with an essentially continuous layer of an electrically conductive material for catalyzing chemical reactions in gaseous materials transported through said channels.
Claim 3
Dependent Claim
13 words
A sheet as in claim 1, wherein the solid electrolyte comprises yttria-stabilized zirconia.
Claim 4
Dependent Claim
18 words
A sheet as in claim 2, wherein the electrically conductive material is an oxygen-dissociating catalyst which comprises platinum.
Claim 5
Dependent Claim
20 words
A sheet as in claim 2, wherein the electrically conductive material is an oxygen-dissociating catalyst which comprises a platinum-rhodium alloy.
Claim 6
Dependent Claim
19 words
A sheet as in claim 2, wherein the electrically conductive material is an oxidation reaction-promoting catalyst which comprises platinum.
Claim 7
Dependent Claim
21 words
A sheet as in claim 2, wherein the electrically conductive material is an oxidation reaction-promoting catalyst which comprises a platinum-rhodium alloy.
Claim 8
Dependent Claim
13 words
A sheet as in claim 1, wherein the solid electrolyte comprises calcia-stabilized zirconia.
Claim 9
Dependent Claim
18 words
A sheet as in claim 7, wherein the electrically conductive material is an oxygen-dissociating catalyst which comprises platinum.
Claim 10
Dependent Claim
20 words
A sheet as in claim 7, wherein the electrically conductive material is an oxygen-dissociating catalyst which comprises a platinum-rhodium alloy.
Claim 11
Dependent Claim
19 words
A sheet as in claim 7, wherein the electrically conductive material is an oxidation reaction-promoting catalyst which comprises platinum.
Claim 12
Dependent Claim
21 words
A sheet as in claim 7, wherein the electrically conductive material is an oxidation reaction-promoting catalyst which comprises a platinum-rhodium alloy.
Claim 13
Dependent Claim
65 words
In an essentially planar, fluid-impermeable ceramic sheet composed of a solid electrolyte capable of transporting oxygen ions and coated with an electrically conductive material for catalyzing chemical reactions, the improvement comprising: a plurality of load-bearing ribs disposed in parallel on one surface of said sheet and extending generally perpendicularly therefrom, said ribs defining channels having an essentially continuous layer of said catalytic material disposed therein.
Claim 14
Dependent Claim
65 words
In an essentially planar, fluid-impermeable ceramic sheet composed of a solid electrolyte capable of transporting oxygen ions and coated with an electrically conductive material for catalyzing chemical reactions, the improvement comprising: a plurality of load-bearing ribs disposed in parallel on one surface of said sheet and extending generally perpendicularly therefrom, said ribs defining channels having an essentially continuous layer of said catalytic material disposed therein.
Claim 15
Dependent Claim
13 words
A sheet as in claim 12, wherein the solid electrolyte comprises yttria-stabilized zirconia.
Claim 16
Dependent Claim
17 words
A sheet as in claim 13, wherein the catalytic material is an oxygen-dissociating catalyst which comprises platinum.
Claim 17
Dependent Claim
19 words
A sheet as in claim 13, wherein the catalytic material is an oxygen-dissociating catalyst which comprises a platinum-rhodium alloy.
Claim 18
Dependent Claim
18 words
A sheet as in claim 13, wherein the catalytic material is an oxidation reaction-promoting catalyst which comprises platinum.
Claim 19
Dependent Claim
20 words
A sheet as in claim 13, wherein the catalytic material is an oxidation reaction-promoting catalyst which comprises a platinum-rhodium alloy.
Claim 20
Dependent Claim
13 words
A sheet as in claim 12, wherein the solid electrolyte comprises calcia-stabilized zirconia.
Claim 21
Dependent Claim
17 words
A sheet as in claim 18, wherein the catalytic material is an oxygen-dissociating catalyst which comprises platinum.
Claim 22
Dependent Claim
19 words
A sheet as in claim 18, wherein the catalytic material is an oxygen-dissociating catalyst which comprises a platinum-rhodium alloy.
Claim 23
Dependent Claim
18 words
A sheet as in claim 18, wherein the catalytic material is an oxidation reaction-promoting catalyst which comprises platinum.
Claim 24
Dependent Claim
20 words
A sheet as in claim 18, wherein the catalytic material is an oxidation reaction-promoting catalyst which comprises a platinum-rhodium alloy.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-08-01 | 1987-01-31 | 1987-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-08-01 | 1991-01-31 | 1991-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-08-01 | 1995-01-31 | 1995-08-02 | $7700.00 | Window Closed / Lapsed |