US3770507A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrochemical battery employing bonded lead dioxide electrode and fluoroboric acid electrolyte
Assignee: Globe Union Inc
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Filing: 1972-01-24
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Granted: 1973-11-06
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Expires: 1992-01-24
Abstract
Abstract A lead dioxide electrode structure for an electrochemical battery employing fluoroboric acid as an electrolyte is formed from lead dioxide particles, a bonding material and preferably a synthetic fibrous material. The bonding and fibrous materials are mixed with the lead dioxide particles to form a compact and homogeneous electrode structure. The bonding and fibrous materials are partially resistant to the fluoroboric acid and are compatible with each other. The battery formed from the electrode structure is operable at temperatures as low as minus 60* centigrade and at temperatures as high as plus 100* centigrade and can be custom made to provide a variety of steady or pulsed current discharges.
Inventors
- 👤 E Weissman
- 👤 Donald G Mc
- 👤 C Weinlein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:30
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M6/00; H01M6/04
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
61 words
The electrochemical battery as defined in claim 1 further including a synthetic fibrous material, said fibrous material being compactly and homogeneously mixed with said lead dioxide and said bonding material, said fibrous material being compatible with said lead dioxide making the lead dioxide accessible to and consumable by said fluoroboric acid, while being at least partially inert to said fluoroboric acid.
Claim 2
Dependent Claim
27 words
The electrochemical battery as defined in claim 2 wherein said metallic anode comprises two metallic lead anodes with insulating separators between said anodes and said electrode structure.
Claim 3
Dependent Claim
42 words
The electrochemical battery as defined in claim 2 wherein said bonding material is a resin and the ratio of resinous material to fibrous material is in the range of 1 to 4 and 0.25 to 1 as based on a weight percentage.
Claim 4
Dependent Claim
19 words
The electrochemical battery as defined in claim 2 wherein said fibres are composed of a vinyl chloride-acrylonitrile copolymer resin.
Claim 5
Dependent Claim
23 words
The electrochemical battery as defined in claim 2 wherein said fibres are an equal mixture of carbon and a vinyl chloride-acrylonitrile copolymer resin.
Claim 6
Dependent Claim
22 words
The electrochemical battery as defined in claim 3 further including a metallic substrate for said cathode comprising a lead dioxide plated nickel.
Claim 7
Dependent Claim
22 words
The electrochemical battery as defined in claim 3 wherein said insulating separators are polyvinyl chloride or a vinyl chloride-acrylonitrile copolymer felt resin.
Claim 8
Dependent Claim
18 words
The electrochemical battery as defined in clain 2 wherein said bonding material is a vinyl chloride-vinyl acetate resin.
Claim 9
Dependent Claim
30 words
The electrochemical battery as defined in claim 2 wherein the ratio of said bonding material to said fibrous material is approximately 4 to 1 as based on a weight percentage.
Claim 10
Dependent Claim
35 words
The electrochemical battery as defined in claim 7 wherein said battery is composed of several cells of said anodes and cathodes and fluoroboric acid is present in an amount of approximately 1.5 milliliters per cell.
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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) | 1976-11-05 | 1977-05-07 | 1977-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-05 | 1981-05-07 | 1981-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-05 | 1985-05-07 | 1985-11-06 | $7700.00 | Window Closed / Lapsed |