US4348465A
Expired / Lapsed
US
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Nitrogen metal fuel cell
Assignee: UNIVERSAL FUEL SYSTEMS Inc 39503 CALLE EL FUENTE SAUGUS CA A CORP OF
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Filing: 1980-11-10
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Granted: 1982-09-07
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Expires: 2000-11-10
Abstract
Abstract A nitrogen-metal fuel cell comprising a cathode and an anode in spaced relationship, a first electrolyte solution contacting the cathode, a second electrolyte solution contacting the anode and an ion transfer membrane between the electrolytes to prevent commingling thereof and through which hydroxyl ions freely move. The cathode comprises an aqueous solution of nitrate and an ion transfer membrane between the solution and the electrolyte contacting the cathode.
Inventors
- 👤 Ralph C. Struthers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:05
CPC Classifications
H; H01; H01M; H01M8/00; H01M8/22; H01M12/00; H01M12/04; H01M6/00; H01M6/04; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/50
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
68 words
A fuel cell comprising a fuel metal anode, a nitrogen compound fuel cathode solution spaced from the anode, a hydroxyl ion transfer membrane between the anode and the cathode solution and carrying a metallic catalyst for the cathode solution, an aqueous electrolyte solution between and contacting the anode and the membrane, and an electric circuit connected with and conducting free electrons from the anode and to the cathode.
Claim 2
Dependent Claim
68 words
A fuel cell comprising a fuel metal anode, a nitrogen compound fuel cathode solution spaced from the anode, a hydroxyl ion transfer membrane between the anode and the cathode solution and carrying a metallic catalyst for the cathode solution, an aqueous electrolyte solution between and contacting the anode and the membrane, and an electric circuit connected with and conducting free electrons from the anode and to the cathode.
Claim 3
Dependent Claim
36 words
The fuel cell set forth in claim 1 wherein the electrolyte is formulated primarily of a base material in aqueous solution and said nitrogen compound cathode solution is formulated primarily of a nitrate in aqueous solution.
Claim 4
Dependent Claim
86 words
The fuel cell set forth in claim 1 wherein a second hydroxyl ion transfer membrane is positioned between the first mentioned membrane and the anode and wherein the electrolyte includes a first solution between the membranes and formulated for efficient conducting of ions from the cathode toward the anode and a second solution between the second membrane and the anode and formulated for efficient conducting of said ions from said second membrane to said anode and to have minimal corrosion reaction on and with said anode.
Claim 5
Dependent Claim
35 words
The fuel cell set forth in claim 3 wherein the electrolytes are formulated primarily of base materials in aqueous solutions and said nitrogen compound cathode solution is formulated primarily of a nitrate in aqueous solution.
Claim 6
Dependent Claim
56 words
The fuel cell set forth in claim 4 wherein the PH of the first and second electrolyte solutions are different and wherein the PH and the corrosion reaction of said second electrolyte with the anode is established at desired level by the addition of an acid having a predetermined PKl value to the said second electrolyte.
Claim 7
Dependent Claim
56 words
The fuel cell set forth in claim 3 wherein the PH of the first and second electrolyte solutions are different and wherein the PH and the corrosion reaction of said second electrolyte with the anode is established at desired level by the addition of an acid having a predetermined PKl value of the said second electrolyte.
Claim 8
Dependent Claim
41 words
The fuel cell set forth in claim 1 wherein said membrane has a porous catalyst carrying material at a surface of the membrane opposing the cathode solution to receive cathode solution and to hold and carry particles of a metallic catalyst.
Claim 9
Dependent Claim
41 words
The fuel cell set forth in claim 2 wherein said membrane has a porous catalyst carrying material at a surface of the membrane opposing the cathode solution to receive cathode solution and to hold and carry particles of a metallic catalyst.
Claim 10
Dependent Claim
42 words
The fuel cell set forth in claim 3 wherein said second membrane has a porous catalyst carrying material at a surface of the membrane opposing the cathode solution to receive cathode solution and to hold and carry particles of a metallic catalyst.
Claim 11
Dependent Claim
68 words
The fuel cell set forth in claim 7 wherein said metallic catalyst is established of the metal components of the ions of a predetermined volume of metallic nitrate in the cathode nitrogen compound solution and electrons conducted into said solution whereby molecules of the metal components are cyclically deposited on and within the catalyst carrying material and broken into ions by electrolytic dissociation during operation of the cell.
Claim 12
Dependent Claim
68 words
The fuel cell set forth in claim 2 wherein said metallic catalyst is established of the metal components of the ions of a predetermined volume of metallic nitrate in the cathode nitrogen compound solution and electrons conducted into said solution whereby molecules of the metal components are cyclically deposited on and within the catalyst carrying material and broken into ions by electrolitic dissociation during operation of the cell.
Claim 13
Dependent Claim
68 words
The fuel cell set forth in claim 3 wherein said metallic catalyst is established of the metal components of the ions of a predetermined volume of metallic nitrate in the cathode nitrogen compound solution and electrons conducted into said solution whereby molecules of the metal components are cyclically deposited on and within the catalyst carrying material and broken into ions by electrolitic dissociation during operation of the cell.
Claim 14
Dependent Claim
29 words
The fuel cell set forth in claim 1 wherein said membrane has a catalyst carrying surface opposing the cathode solution at which particles of a metallic catalyst are deposited.
Claim 15
Dependent Claim
29 words
The fuel cell set forth in claim 2 wherein said membrane has a catalyst carrying surface opposing the cathode solution at which particles of a metallic catalyst are deposited.
Claim 16
Dependent Claim
30 words
The fuel cell set forth in claim 3 wherein said second membrane has a catalyst carrying surface opposing the cathode solution at which particles of a metallic catalyst are deposited.
Claim 17
Dependent Claim
100 words
A fuel cell comprising a fuel metal anode, a cathode solution spaced from the anode and composed of a selected element and oxygen, said element is selected from those elements which, when compounded with oxygen, produce hydroxyl ions and establish positive cathode half reactions when free electrons are conducted into it, a hydroxyl ion transfer membrane between the anode and cathode and carrying a metallic catalyst for the cathode solution, an electrolyte between and contacting the anode and the membrane; and an electric circuit connected with and between the anode and cathode and conducting free electrons to the cathode solution.
Claim 18
Dependent Claim
100 words
A fuel cell comprising a fuel metal anode, a cathode solution spaced from the anode and composed of a selected element and oxygen, said element is selected from those elements which, when compounded with oxygen, produce hydroxyl ions and establish positive cathode half reactions when free electrons are conducted into it, a hydroxyl ion transfer membrane between the anode and cathode and carrying a metallic catalyst for the cathode solution, an electrolyte between and contacting the anode and the membrane; and an electric circuit connected with and between the anode and cathode and conducting free electrons to the cathode solution.
Claim 19
Dependent Claim
31 words
The fuel cell set forth in claim 16 wherein the electrolyte is an aqueous solution of base material and said cathode solution is composed of an aqueous solution of said element.
Claim 20
Dependent Claim
85 words
The fuel cell set forth in claim 16 including a second hydroxyl ion transfer membrane in spaced position between the first mentioned membrane and the anode and wherein the electrolyte includes a first solution between the membranes and formulated for efficient conducting of ions from the cathode toward the anode and a second solution between the second membrane and the anode and formulated for efficient conducting of said ions from the second membrane to the anode and to have minimal corrosion reaction with said anode.
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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) | 1985-09-06 | 1986-03-08 | 1986-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-09-06 | 1990-03-08 | 1990-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-09-06 | 1994-03-08 | 1994-09-07 | $7700.00 | Window Closed / Lapsed |