Patent US4822698A successfully refreshed from Google Patents.
US4822698A
Expired / Lapsed
US
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Seawater power cell
Assignee: Westinghouse Electric Corp
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Filing: 1987-05-15
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Granted: 1989-04-18
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Expires: 2007-05-15
Abstract
Abstract Disclosed is a battery having an anode selected from the group consisting of magnesium, zinc, and mixtures and alloys thereof, an oxygen electrode as the cathode, and means for maintaining the anode and the cathode in an electricity-generating relationship when the battery is placed in salt water. Also disclosed is a method of producing electricity by positioning the anode and cathode in a saline electrolyte whereby the reaction M+20H.sup.- →M(OH).sub.2 +2e.sup.- occurs at the anode and the reaction O.sub.2 +2H.sub.2 O+4e.sup.- →20H.sup.31 occurs at the anode, where M is magnesium, zinc, aluminum, or mixtures or alloys thereof.
Inventors
- 👤 John F. Jackovitz
- 👤 David Zuckerbrod
- 👤 Edward S. Buzzelli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:54
CPC Classifications
H; H01; H01M; H01M6/00; H01M6/30; H01M6/32; H01M6/34; H01M12/00; H01M12/04; H01M12/06; H01M4/00; H01M4/02; H01M4/36; H01M4/38; H01M4/46; H01M4/64; H01M4/70; H01M4/75; H01M4/86; H01M4/96
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
63 words
A seawater activated battery comprising (A) a porous casing of inert material; (B) an oxygen electrode as a cathode fixed inside and spaced apart from said casing; (C) an anode selected from the group consisting of magnesium, zinc, and mixtures thereof, said anode being fixed inside said oxygen electrode, spaced therefrom; and (D) means for collecting current from said anode and said cathode.
Claim 2
Dependent Claim
63 words
A seawater activated battery comprising (A) a porous casing of inert material; (B) an oxygen electrode as a cathode fixed inside and spaced apart from said casing; (C) an anode selected from the group consisting of magnesium, zinc, and mixtures thereof, said anode being fixed inside said oxygen electrode, spaced therefrom; and (D) means for collecting current from said anode and said cathode.
Claim 3
Dependent Claim
14 words
A battery according to claim 1 wherein said anode is a magnesium rich alloy.
Claim 4
Dependent Claim
11 words
A battery according to claim 1 wherein said anode is zinc.
Claim 5
Dependent Claim
14 words
A battery according to claim 1 wherein said anode is a plurality of rods.
Claim 6
Dependent Claim
52 words
A battery according to claim 1 wherein said air electrode comprises a current collector imbedded in a matrix which comprises: (1) about 30 to about 70% by weight of a porous, inert, hydrophobic plastic; (2) about 0.2 to about 0.8 mg/cm 2 of a catalyst; (3) about 70 to about 30% carbon.
Claim 7
Dependent Claim
11 words
A battery according to claim 1 wherein said anode is aluminum.
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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) | 1992-04-17 | 1992-10-17 | 1993-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-04-17 | 1996-10-17 | 1997-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-04-17 | 2000-10-17 | 2001-04-18 | $7700.00 | Window Closed / Lapsed |