US4423122A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrode for molten carbonate fuel cell
Assignee: United States Department of Energy
•
Filing: 1982-04-26
•
Granted: 1983-12-27
•
Expires: 2002-04-26
Abstract
Abstract A sintered porous electrode useful for a molten carbonate fuel cell is produced which is composed of a plurality of 5 wt. % to 95 wt. % nickel balance copper alloy encapsulated ceramic particles sintered together by the alloy.
Inventors
- 👤 Charles D. Iacovangelo
- 👤 Kenneth P. Zarnoch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 02:05
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/86; H01M4/8605; H01M4/8621; H01M8/00; H01M8/14; H01M2008/147; H01M2300/00; H01M2300/0017; H01M2300/0048; H01M2300/0051; H01M4/8647; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/50
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
109 words
A porous sintered electrode useful for a molten carbonate fuel cell consisting essentially of a plurality of alloy encapsulated ceramic particle sintered together only by means of said alloy, said alloy being composed of about 5 weight % to about 95% weight % nickel balance copper, said ceramic particles ranging in size from about 0.1 micron to about 20 microns and being selected from the group consisting of lithium aluminate, strontium titanate, α-alumina and mixtures thereof, said electrode having a pore volume greater than 40% by volume but less than 85% by volume of the electrode and a pore size ranging from about 0.1 micron to about 20 microns.
Claim 2
Dependent Claim
109 words
A porous sintered electrode useful for a molten carbonate fuel cell consisting essentially of a plurality of alloy encapsulated ceramic particle sintered together only by means of said alloy, said alloy being composed of about 5 weight % to about 95% weight % nickel balance copper, said ceramic particles ranging in size from about 0.1 micron to about 20 microns and being selected from the group consisting of lithium aluminate, strontium titanate, α-alumina and mixtures thereof, said electrode having a pore volume greater than 40% by volume but less than 85% by volume of the electrode and a pore size ranging from about 0.1 micron to about 20 microns.
Claim 3
Dependent Claim
27 words
The electrode of claim 1 wherein said ceramic particles are in a range of sizes and wherein the thickness of said encapsulating alloy is substantially the same.
Claim 4
Dependent Claim
26 words
The electrode of claim 1 wherein said ceramic particles are all substantially the same size and wherein said encapsulating alloy is in a range of thicknesses.
Claim 5
Dependent Claim
110 words
A porous sintered electrode useful for a molten carbonate fuel cell consisting essentially of a plurality of alloy encapsulated ceramic particle sintered together only by means of said alloy, said alloy being composed of about 10 weight % to about 80% weight % nickel balance copper, said ceramic particles ranging in size from about 0.1 micron to about 20 microns and being selected from the group consisting of lithium aluminate, strontium titanate, α-alumina and mixtures thereof, said electrode having a pore volume greater than 40% by volume but less than 85% by volume of the electrode and a median pore size ranging from about 1 micron to about 8 microns.
Claim 6
Dependent Claim
110 words
A porous sintered electrode useful for a molten carbonate fuel cell consisting essentially of a plurality of alloy encapsulated ceramic particle sintered together only by means of said alloy, said alloy being composed of about 10 weight % to about 80% weight % nickel balance copper, said ceramic particles ranging in size from about 0.1 micron to about 20 microns and being selected from the group consisting of lithium aluminate, strontium titanate, α-alumina and mixtures thereof, said electrode having a pore volume greater than 40% by volume but less than 85% by volume of the electrode and a median pore size ranging from about 1 micron to about 8 microns.
Claim 7
Dependent Claim
50 words
The porous sintered electrode according to claim 4 wherein said alloy is composed of about 83 weight % nickel balance copper and said ceramic particles range in size from about 0.1 micron to about 5 microns and said median pore size ranges from about 2 microns to about 6 microns.
References Cited (Backward Citations)
US3400019A
Cited
US4361631A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-12-26 | 1987-06-27 | 1987-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-12-26 | 1991-06-27 | 1991-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-12-26 | 1995-06-27 | 1995-12-27 | $7700.00 | Window Closed / Lapsed |