US4748091A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bipolar plating of metal contacts onto oxide interconnection for solid oxide electrochemical cell
Assignee: Westinghouse Electric Corp
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Filing: 1986-12-09
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Granted: 1988-05-31
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Expires: 2006-12-09
Abstract
Abstract Disclosed is a method of forming an adherent metal deposit on a conducting layer of a tube sealed at one end. The tube is immersed with the sealed end down into an aqueous solution containing ions of the metal to be deposited. An ionically conducting aqueous fluid is placed inside the tube and a direct current is passed from a cathode inside the tube to an anode outside the tube. Also disclosed is a multi-layered solid oxide fuel cell tube which consists of an inner porous ceramic support tube, a porous air electrode covering the support tube, a non-porous electrolyte covering a portion of the air electrode, a non-porous conducting interconnection covering the remaining portion of the electrode, and a metal deposit on the interconnection.
Inventors
- 👤 Arnold O. Isenberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:14
CPC Classifications
H; H01; H01M; H01M8/00; H01M8/02; H01M8/0202; H01M8/0204; H01M8/0206; C; C25; C25D; C25D5/00; C25D5/54; H01M8/24; H01M8/241; H01M8/2425; H01M8/243; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/50
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
66 words
A multi-layered solid oxide fuel cell tube comprising: (1) an inner porous ceramic support tube; (2) a porous air electrode covering said support tube; (3) a non-porous ceramic electrolyte covering a portion of said air electrode; (4) a non-porous electronically conducting ceramic interconnection covering another portion of said air electrode; (5) a metal deposit on said interconnection; and (6) a metal fuel electrode covering said electrolyte
Claim 2
Dependent Claim
66 words
A multi-layered solid oxide fuel cell tube comprising: (1) an inner porous ceramic support tube; (2) a porous air electrode covering said support tube; (3) a non-porous ceramic electrolyte covering a portion of said air electrode; (4) a non-porous electronically conducting ceramic interconnection covering another portion of said air electrode; (5) a metal deposit on said interconnection; and (6) a metal fuel electrode covering said electrolyte
Claim 3
Dependent Claim
28 words
A fuel cell tube according to claim 1, wherein said metal deposit is selected from the group consisting of nickel, cobalt, copper, platinum, silver, gold, and mixtures thereof.
Claim 4
Dependent Claim
14 words
A fuel cell tube according to claim 1 wherein said metal deposit is nickel.
Claim 5
Dependent Claim
21 words
A fuel cell tube according to claim 1 wherein said metal deposit is about 1000 Angstroms to about 20 microns thick.
Claim 6
Dependent Claim
21 words
A fuel cell tube according to claim 1 wherein said metal deposit is covered with a layer of fuel electrode material.
Claim 7
Dependent Claim
29 words
In a multi-layered solid oxide fuel cell tube having a non-porous electronically conducting ceramic interconnection on an air electrode, the improvement which comprises a metal deposit on said interconnection.
Claim 8
Dependent Claim
29 words
In a multi-layered solid oxide fuel cell tube having a non-porous electronically conducting ceramic interconnection on an air electrode, the improvement which comprises a metal deposit on said interconnection.
Claim 9
Dependent Claim
28 words
A fuel cell tube according to claim 6, wherein said metal deposit is selected from the group consisting of nickel, cobalt, copper, platinum, silver, gold, and mixtures thereof.
Claim 10
Dependent Claim
14 words
A fuel cell tube according to claim 6 wherein said metal deposit is nickel.
Claim 11
Dependent Claim
21 words
A fuel cell tube according to claim 5 wherein said metal deposit is about 1000 Angstroms to about 20 microns thick.
Claim 12
Dependent Claim
21 words
A fuel cell tube according to claim 6 wherein said metal deposit is covered with a layer of fuel electrode material.
Claim 13
Dependent Claim
34 words
In a solid oxide electrochemical cell having a non-porous electronically conducting ceramic interconnection which provides an electrical connection to another similar cell, the improvement which comprises a layer of metal bonded to said interconnection.
Claim 14
Dependent Claim
34 words
In a solid oxide electrochemical cell having a non-porous electronically conducting ceramic interconnection which provides an electrical connection to another similar cell, the improvement which comprises a layer of metal bonded to said interconnection.
Claim 15
Dependent Claim
11 words
An improvement according to claim 11 wherein said metal is nickel.
Claim 16
Dependent Claim
18 words
An improvement according to claim 11 wherein said layer is about 1000 Angstroms to about 20 microns thick.
Claim 17
Dependent Claim
18 words
An improvement according to claim 11 wherein said layer is covered with a layer of fuel electrode material.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-05-31 | 1991-11-30 | 1992-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-05-31 | 1995-11-30 | 1996-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-05-31 | 1999-11-30 | 2000-05-31 | $7700.00 | Window Closed / Lapsed |