US3852113A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Positive electrode for high energy primary cells and cells using same
Assignee: Osaka Soda Co Ltd
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Filing: 1972-12-27
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Granted: 1974-12-03
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Expires: 1992-12-27
Abstract
Abstract A positive electrode for high energy primary cells which comprises a homogeneous mixture of a finely divided chlorinated amorphous carbon and an electrically conductive material selected from the group consisting of finely divided conductive carbons, conductive carbon fibers, finely divided conductive metals, conductive metallic fibers and mixtures thereof, said homogeneous mixture being bonded with a synthetic resin binder, with the proviso that the chlorine content of said finely divided chlorinated amorphous carbon ranges between 5 and 70 % by weight of the positive electrode, and a high energy primary cell comprising a subsequently defined positive electrode and a negative electrode of an alkali metal, said positive and negative electrodes being disposed in a cell casing with the interposition of an electrolyte solution consisting of a nonaqueous organic solvent solution of a solute.
Inventors
- 👤 N Yokota
- 👤 Y Kanaya
- 👤 H Shimizu
- 👤 N Watanabe
- 👤 S Tokuda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:56
CPC Classifications
H; H01; H01M; H01M6/00; H01M6/04; H01M4/00; H01M4/02; H01M4/06; H01M6/14; H01M6/16
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
90 words
A POSITIVE ELECTRODE FOR HIGH ENERGY PRIMARY CELLS WHICH COMPRISES A HOMOGENEOUS MIXTURE OF FINELY DIVIDED CHLRONATED AMORPHOUS CARBON WHOSE CHLORIDE CONTENT RANGES BE TWEEN 20 AND 80% BY WEIGHT AND AN ELECTRICALLY CONDUCTIVE MATERIAL SELECTED FROM THE GROUP CONSISTING OF FINELY DIVIDED CONDUCTIVE CARBONS, CONDUCTIVE CARBON FIBERS, FINELY DIVIDED CONDUCTIVE METALS, CONDUCTIVE METALLIC FIBERS AND MIXTURES THEREOF, SAID HOMOGENEOUS MIXTURE BEING BONDED WITH A SYNTHETIC RESIN BINDER, AND THE CHLORINE CONTENT OF SAID FINELY DIVIDED CHLORINATED AMORPHOUS CARBON RANGES BETWEEN 5 AND 70% BY WEIGHT OF THE POSITIVE ELECTRODE.
Claim 2
Dependent Claim
90 words
A POSITIVE ELECTRODE FOR HIGH ENERGY PRIMARY CELLS WHICH COMPRISES A HOMOGENEOUS MIXTURE OF FINELY DIVIDED CHLRONATED AMORPHOUS CARBON WHOSE CHLORIDE CONTENT RANGES BE TWEEN 20 AND 80% BY WEIGHT AND AN ELECTRICALLY CONDUCTIVE MATERIAL SELECTED FROM THE GROUP CONSISTING OF FINELY DIVIDED CONDUCTIVE CARBONS, CONDUCTIVE CARBON FIBERS, FINELY DIVIDED CONDUCTIVE METALS, CONDUCTIVE METALLIC FIBERS AND MIXTURES THEREOF, SAID HOMOGENEOUS MIXTURE BEING BONDED WITH A SYNTHETIC RESIN BINDER, AND THE CHLORINE CONTENT OF SAID FINELY DIVIDED CHLORINATED AMORPHOUS CARBON RANGES BETWEEN 5 AND 70% BY WEIGHT OF THE POSITIVE ELECTRODE.
Claim 3
Dependent Claim
23 words
A positive electrode according to claim 1 wherein said chlorine content ranges between 10 and 65 % by weight of the positive electrode.
Claim 4
Dependent Claim
31 words
A positive electrode according to claim 1 wherein said synthetic resin binder is a resinous binder selected from the group consisting of polyethylene, polypropylene, chlorinated polyethylene, polytetrafluoroethylene, polytrifluoromonochloroethylene and mixtures thereof.
Claim 5
Dependent Claim
28 words
A positive electrode according to claim 1 wherein said electrode includes a core of an electrically conductive supporting structure consisting of a network structure of a conductive metal.
Claim 6
Dependent Claim
25 words
A positive electrode according to claim 1 wherein the amount of said electrically conductive material is 0.5 - 40 % by weight of the electrode.
Claim 7
Dependent Claim
25 words
A positive electrode according to claim 1 wherein the amount of said synthetic resin binder is 5 - 40 % by weight of the electrode.
Claim 8
Dependent Claim
120 words
A high energy primary cell comprising a positive electrode and a negative electrode of an alkali metal, said positive and negative electrodes being disposed in a cell casing with the interposition of an electrolyte solution consisting of a nonaqueous organic solvent solution of a solutE, said positive electrode comprising a homogeneous mixture of a finely divided chlorinated amorphous carbon and an electrically conductive material selected from the group consisting of finely divided conductive carbons, conductive carbon fibers, finely divided conductive metals, conductive metallic fibers and mixtures thereof, said homogeneous mixture being bonded with a synthetic resin binder, and the chlorine content of said finely divided chlorinated amorphous carbon ranges between 5 and 70 % by weight of the positive electrode.
Claim 9
Dependent Claim
120 words
A high energy primary cell comprising a positive electrode and a negative electrode of an alkali metal, said positive and negative electrodes being disposed in a cell casing with the interposition of an electrolyte solution consisting of a nonaqueous organic solvent solution of a solutE, said positive electrode comprising a homogeneous mixture of a finely divided chlorinated amorphous carbon and an electrically conductive material selected from the group consisting of finely divided conductive carbons, conductive carbon fibers, finely divided conductive metals, conductive metallic fibers and mixtures thereof, said homogeneous mixture being bonded with a synthetic resin binder, and the chlorine content of said finely divided chlorinated amorphous carbon ranges between 5 and 70 % by weight of the positive electrode.
Claim 10
Dependent Claim
30 words
A cell according to claim 7 wherein said synthetic resin binder is a resinous binder selected from the group consisting of polyethylene, polypropylene, chlorinated polyethylene, polytetrafluoroethylene, polytrifluoromonochloroethylene and mixtures thereof.
Claim 11
Dependent Claim
25 words
A cell according to claim 7 wherein the amount of said electrically conductive material is 0.5 - 40 % by weight of the positive electrode.
Claim 12
Dependent Claim
25 words
A cell according to claim 7 wherein the amount of said synthetic resin binder is 5 - 40 % by weight of the positive electrode.
Claim 13
Dependent Claim
51 words
A cell according to claim 7 wherein said solute is a compound soluble in said organic solvent and selected from the group consisting of perchlorates of alkali metals, chlorides of alkali metals, aluminum chloride, hexafluorophosphates of alkali metals, tetrafluoroborates of alkali metals, thiocyanates of alkali metals, tetrabutylammonium iodide and mixtures thereof.
Claim 14
Dependent Claim
35 words
A cell according to claim 7 wherein said nonaqueous organic solvent is a compound selected from the group consisting of the cyclic esters, linear esters, acetonitrile, propionitrile, dimethylformamide, dimethyl sulfoxide, nitromethane, 2-pentanone and mixtures thereof.
Claim 15
Dependent Claim
128 words
A high energy primary cell comprising a positive electrode and a negative electrode of a metal selected from the group consisting of magnesium, zinc, cadmium and aluminum, said positive and negative electrodes being disposed in a cell casing with the interposition of an electrolyte solution consisting of an aqueous solution of a solute, said positive electrode comprising a homogeneous mixture of a finely divided chlorinated amorphous carbon and an electrically conductive material selected from the group consisting of finely divided conductive carbons, conductive carbon fibers, finely divided conductive metals, conductive metallic fibers and mixtures thereof, said homogeneous mixture being bonded with a synthetic resin binder, and the chlorine content of said finely divided chlorinated amorphous carbon ranges between 5 and 70 % by weight of the positive electrode.
Claim 16
Dependent Claim
128 words
A high energy primary cell comprising a positive electrode and a negative electrode of a metal selected from the group consisting of magnesium, zinc, cadmium and aluminum, said positive and negative electrodes being disposed in a cell casing with the interposition of an electrolyte solution consisting of an aqueous solution of a solute, said positive electrode comprising a homogeneous mixture of a finely divided chlorinated amorphous carbon and an electrically conductive material selected from the group consisting of finely divided conductive carbons, conductive carbon fibers, finely divided conductive metals, conductive metallic fibers and mixtures thereof, said homogeneous mixture being bonded with a synthetic resin binder, and the chlorine content of said finely divided chlorinated amorphous carbon ranges between 5 and 70 % by weight of the positive electrode.
Claim 17
Dependent Claim
30 words
A cell according to claim 13 wherein said synthetic resin binder is a resinous binder selected from the group consisting of polyethylene, polypropylene, chlorinated polyethylene, polytetrafluoroethylene, polytrifluoromonochloroethylene and mixtures thereof.
Claim 18
Dependent Claim
25 words
A cell according to claim 13 wherein the amount of said electrically conductive material is 0.5 - 40 % by weight of the positive electrode.
Claim 19
Dependent Claim
25 words
A cell according to claim 13 wherein the amount of said synthetic resin binder is 5 - 40 % by weight of the positive electrode.
Claim 20
Dependent Claim
34 words
A cell according to claim 13 wherein said solute is a water-soluble compound selected from the group consisting of magnesium chloride, cadmium chloride, aluminum chloride, ammonium chloride, sodium hydroxide, potassium hydroxide and mixtures thereof.
Claim 21
Dependent Claim
24 words
The positive electrode of claim 1 wherein the chlorine content of said finely divided chlorinated amorphous carbon ranges between 35 - 80% by weight.
Claim 22
Dependent Claim
26 words
The high energy primary cell of claim 7 wherein the chlorine content of said finely divided chlorinated amorphous carbon ranges between 35 - 80% by weight.
Claim 23
Dependent Claim
26 words
The high energy primary cell of claim 13 wherein the chlorine content of said finely divided chlorinated amorphous carbon ranges between 35 - 80% by weight.
References Cited (Backward Citations)
US3279952A
Cited
US3380855A
Cited
US3468716A
Cited
US3424621A
Cited
US3415687A
Cited
US3700502A
Cited
US3514337A
Cited
US3579384A
Cited
US3701688A
Cited
US3751298A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-12-02 | 1978-06-03 | 1978-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-02 | 1982-06-03 | 1982-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-02 | 1986-06-03 | 1986-12-03 | $7700.00 | Window Closed / Lapsed |