US3880672A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Battery barrier and battery
Assignee: Spectrum Brands Inc
•
Filing: 1973-03-23
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Granted: 1975-04-29
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Expires: 1993-03-23
Abstract
Abstract An electric battery having an organic barrier with an organic substrate, at least one side of which substrate has adhered thereto a mixture of a binder material and an inorganic material, in a dispersing medium.
Inventors
- 👤 El Sayed Megahed
- 👤 Randall W Peters
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:12
CPC Classifications
H; H01; H01M; H01M50/00; H01M50/40; H01M50/409; H01M50/44; H01M50/411; H01M50/414; H01M50/429; H01M2300/00; H01M2300/0002; H01M2300/0014; H01M50/489; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
118 words
AN ELECTRIC BATTERY COMPRISING IN COMBINATION A. A POSITIVE ELECTRODE, B. A NEGATIVE ELECTRODE, C. AN ALKALINE ELECTROLYTE IN CONTACT WITH SAID ELECTRODES, AND D. AN ORGANIC BARRIER BETWEEN SAID ELECTRODES WHICH BARRIER COMPRISES AN ORGANIC SUBSTRATE AT LEAST ONE SIDE OF WHICH HAS ADHERED THERETO A PASTE-LIKE MIXTURE CONSISTING ESSENTIALLY OF A BINDER MATERIAL AND AN INORGANIC MATERIAL IN A DISPERSING MEDIUM WHEREIN THE SURFACE DENSITY OF THE INORGANIC MATERIAL IN THE MIXTURE OF (D) IS FROM ABOUT 0.01 TO ABOUT 7.00X10**3 B/CM2 OF ACTIVE ELECTRODE SURFACE AREA AND WHEREIN THE INORGANIC MATERIAL OF (D) IS SELECTED FROM THE GROUP CONSISTING OF TITANIUM DIOXIDE, ZIRCONIUM DIOXIDE, ALUMINUM SULFATE, ALUMINUM CHLORIDE, ALUMINUM OXIDE, BARIUM CHLORIDE AND CHROMIUM CHLORIDE.
Claim 2
Dependent Claim
118 words
AN ELECTRIC BATTERY COMPRISING IN COMBINATION A. A POSITIVE ELECTRODE, B. A NEGATIVE ELECTRODE, C. AN ALKALINE ELECTROLYTE IN CONTACT WITH SAID ELECTRODES, AND D. AN ORGANIC BARRIER BETWEEN SAID ELECTRODES WHICH BARRIER COMPRISES AN ORGANIC SUBSTRATE AT LEAST ONE SIDE OF WHICH HAS ADHERED THERETO A PASTE-LIKE MIXTURE CONSISTING ESSENTIALLY OF A BINDER MATERIAL AND AN INORGANIC MATERIAL IN A DISPERSING MEDIUM WHEREIN THE SURFACE DENSITY OF THE INORGANIC MATERIAL IN THE MIXTURE OF (D) IS FROM ABOUT 0.01 TO ABOUT 7.00X10**3 B/CM2 OF ACTIVE ELECTRODE SURFACE AREA AND WHEREIN THE INORGANIC MATERIAL OF (D) IS SELECTED FROM THE GROUP CONSISTING OF TITANIUM DIOXIDE, ZIRCONIUM DIOXIDE, ALUMINUM SULFATE, ALUMINUM CHLORIDE, ALUMINUM OXIDE, BARIUM CHLORIDE AND CHROMIUM CHLORIDE.
Claim 3
Dependent Claim
33 words
A battery according to claim 1 wherein the organic substrate of (d) consists essentially of a material selected from the group consisting of cellulose, cellophane, acetates, butyrols, nitrates and partially hydrolyzed polyvinyl esters.
Claim 4
Dependent Claim
30 words
A battery according to claim 1 wherein the binder material of (d) is selected from the group consisting of magnesium hydroxide, carboxy-methyl cellulose, guar gum and carbopol and mixtures thereof.
Claim 5
Dependent Claim
15 words
A battery according to claim 3 wherein the binder material of (d) is magnesium hydroxide.
Claim 6
Dependent Claim
23 words
A battery according to claim 1 wherein the dispersing medium of (d) is selected from the group consisting of water and alkaline electrolytes.
Claim 7
Dependent Claim
24 words
A battery according to claim 5 wherein the dispersing medium of (d) is selected from the group consisting of sodium hydroxide and potassium hydroxide.
Claim 8
Dependent Claim
21 words
A battery according To claim 1 wherein the dispersing medium of (d) is the same as the alkaline electrolyte of (c).
Claim 9
Dependent Claim
15 words
A battery according to claim 1 wherein the inorganic material of (d) is titanium dioxide.
Claim 10
Dependent Claim
24 words
A Battery according to claim 1 wherein the surface density of the inorganic material is from about 0.10 to about 1.00 X 10 3g/cm2.
Claim 11
Dependent Claim
26 words
A battery according to claim 1 wherein the weight ratio of binder material to inorganic material in the mixture is from about 7:1 to about 40:1.
Claim 12
Dependent Claim
26 words
A battery according to claim 9 wherein the weight ratio of binder material to inorganic material in the mixture is from about 7:1 to about 40:1.
Claim 13
Dependent Claim
23 words
A battery according to claim 10 wherein the weight ratio of binder material to inorganic material is from about 15:1 to about 25:1.
Claim 14
Dependent Claim
26 words
A battery according to claim 11 wherein the weight ratio of binder material to inorganic material in the mixture is from about 15:1 to about 25:1.
Claim 15
Dependent Claim
42 words
A battery according to claim 1 wherein the organic barrier (d) comprises a two-layer organic substrate said substrate having sandwiched between said layers and adhered thereto a mixture consisting essentially of a binder material and an inorganic material in a dispersing medium.
Claim 16
Dependent Claim
39 words
A battery according to claim 1 wherein the organic barrier (d) comprises a single layer organic substrate havind adhered to one side thereof a mixture consisting essentially of a binder material and an inorganic material in a dispersing medium.
Claim 17
Dependent Claim
20 words
A battery according to claim 15 wherein the mixture is adhered to the positive electrode side of the organic substrate.
References Cited (Backward Citations)
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US2859266A
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US3617387A
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US3711336A
Cited
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US3754998A
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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) | 1978-04-28 | 1978-10-28 | 1979-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-28 | 1982-10-28 | 1983-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-28 | 1986-10-28 | 1987-04-29 | $7700.00 | Window Closed / Lapsed |