US3617385A
Expired / Lapsed
US
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Fuel cell
Assignee: Texas Instruments Inc
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Filing: 1969-03-13
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Granted: 1971-11-02
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Expires: 1989-03-13
Abstract
Abstract A fuel cell electrode subassembly for a multicell power package having at least a pair of thin, porous, elongated electrodes, e.g. cathodes, which are operatively spaced to receive an anode carrying a molded matrix and are connected in series to a third thin, porous electrode, e.g. an anode, which is aligned with the space between the first two electrodes hermetically sealed with an electrically conductive material. Each subassembly can be interfitted with other subassemblies to yield several series connected fuel cell arrays.
Inventors
- 👤 Foster L Gray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:22
CPC Classifications
H; H01; H01M; H01M8/00; H01M8/24; H01M8/241; H01M8/244; H01M8/14; H01M2008/147; H01M2300/00; H01M2300/0017; H01M2300/0048; H01M2300/0051; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/50
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
49 words
A fuel cell electrode subassembly of claim 1 wherein the reactant flow paths extending through one axis of said pair are substantially parallel to said attachment and wherein the reactant flow paths extending through said third electrode are positioned at about 90* from the flow paths of said pair.
Claim 2
Dependent Claim
16 words
The fuel cell electrode subassembly of claim 2 wherein said attachment comprises a nickel braze material.
Claim 3
Dependent Claim
24 words
The fuel cell electrode subassembly of claim 2 wherein said third electrode has a porous matrix for carrying electrolyte operatively molded about its periphery.
Claim 4
Dependent Claim
171 words
A fuel cell electrode subassembly for a fuel cell power package having a plurality of fuel cell electrode arrays interconnected in seRies, each array having at least one thin, porous, generally rectangular-shaped electrode of a first type serving as an oxidizer electrode and having a plurality of oxidizer flow paths positioned axially therethrough; at least one thin, porous, generally rectangular electrode of a second type serving as a fuel electrode and having a plurality of fuel flow paths positioned axially therethrough; and an electrolyte carrying matrix positioned operatively between said first and second type electrodes, and a pair of electrodes of one said type connected in series with a third electrode of the other said type so that the electrodes of said pair are positioned in a parallel relationship and spaced at a distance substantially equal to the thickness of the electrode of the other type and a pair of matrices, and said third electrode is aligned with said space and attached at one end to adjacent ends of said pair.
Claim 5
Dependent Claim
60 words
The fuel cell electrode subassembly of claim 5 wherein said pair of electrodes are electrodes of the said first type having said oxidizer flow paths positioned substantially parallel to said connection, and wherein said third electrode is an electrode of said second type having said fuel flow paths positioned therethrough at about 90* from the flow paths of said pair.
Claim 6
Dependent Claim
45 words
The fuel cell electrode subassembly of claim 6 wherein said electrodes are connected to a conductive metal plate positioned between said pair of electrodes and said third electrode, which plate has an elongated slot in communication with the fuel flow paths through said third electrode.
Claim 7
Dependent Claim
24 words
The fuel cell electrode subassembly of claim 6 wherein said third electrode has a layer of a catalytically active metal on the surface thereof.
References Cited (Backward Citations)
US3492161A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-11-01 | 1975-05-03 | 1975-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-01 | 1979-05-03 | 1979-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-01 | 1983-05-03 | 1983-11-02 | $7700.00 | Window Closed / Lapsed |