US4049892A
Expired / Lapsed
US
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Non-aqueous cell having as cathode a mixture of lead dioxide and lead monoxide and/or lead particles
Assignee: Edgewell Personal Care Brands LLC
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Filing: 1976-12-27
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Granted: 1977-09-20
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Expires: 1996-12-27
Abstract
Abstract A non-aqueous lead oxide cell having a negative electrode, such as lithium, a non-aqueous electrolyte and a positive lead oxide electrode, said lead oxide electrode comprising a substantially uniform mixture of lead dioxide particles and lead monoxide and/or lead particles.
Inventors
- 👤 Marvin Lee Kronenberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:25
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/36; H01M4/48; H01M4/56; H01M6/00; H01M6/14; H01M6/16; H01M6/162; H01M6/164; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 33
Claim 1
Independent Claim
49 words
A lead oxide cell comprising a highly active metal negative electrode, a positive electrode and a non-aqueous electrolyte comprising a salt dissolved in an organic solvent; said positive electrode comprising a substantially uniform mixture of lead dioxide and lead monoxide and said cell having a substantially unipotential discharge voltage.
Claim 2
Dependent Claim
49 words
A lead oxide cell comprising a highly active metal negative electrode, a positive electrode and a non-aqueous electrolyte comprising a salt dissolved in an organic solvent; said positive electrode comprising a substantially uniform mixture of lead dioxide and lead monoxide and said cell having a substantially unipotential discharge voltage.
Claim 3
Dependent Claim
28 words
The lead oxide cell of claim 1 wherein said lead monoxide varies between about 5 percent and about 60 percent based on the weight of the lead oxides.
Claim 4
Dependent Claim
29 words
The lead oxide cell of claim 1 wherein said lead oxide and lead monoxide are in the form of particles sized between about 0.04 mm and about 0.47 mm.
Claim 5
Dependent Claim
31 words
The lead oxide cell of claim 1 wherein the active metal negative electrode is selected from the group consisting of aluminum, the alkali metals, the alkaline earth metals and alloys thereof.
Claim 6
Dependent Claim
26 words
The lead oxide cell of claim 1 wherein the solute of the electrolyte is a complex salt of a Lewis acid and an inorganic ionizable salt.
Claim 7
Dependent Claim
45 words
The lead oxide cell of claim 1 wherein the solvent of the electrolyte is at least one solvent selected from the group consisting of sulfolane; crotonitrile; nitrobenzene; tetrahydrofuran; 1,3-dioxolane; 3-methyl-2-oxazolidone; propylene carbonate; γ-butyrolactone; ethylene glycol sulfite; dimethylsulfite; dimethyl sulfoxide; 1,1- and 1,2-dimethoxyethane; and dimethyl isoxazole.
Claim 8
Dependent Claim
18 words
The lead oxide cell of claim 3 wherein the lead monoxide particles have an inner core of lead.
Claim 9
Dependent Claim
28 words
The lead oxide cell of claim 3 wherein said lead monoxide varies between about 5 percent and about 60 percent based on the weight of the lead oxides.
Claim 10
Dependent Claim
27 words
The lead oxide cell of claim 4 wherein the active metal negative electrode is selected from the group consisting of lithium, sodium, potassium, calcium, and alloys thereof.
Claim 11
Dependent Claim
15 words
The lead oxide cell of claim 9 wherein the active metal negative electrode is lithium.
Claim 12
Dependent Claim
27 words
The lead oxide cell of claim 6 wherein said at least one solvent is selected from the group consisting of sulfolane; 3-methyl-2-oxazolidone; propylene carbonate; 1,3-dioxolane; and dimethoxyethane.
Claim 13
Dependent Claim
49 words
A lead oxide cell comprising a highly active metal negative electrode, a positive electrode and a non-aqueous electrolyte comprising a salt dissolved in an organic solvent; said positive electrode comprising a substantially uniform mixture of lead dioxide and lead particles and said cell having a substantially unipotential discharge voltage.
Claim 14
Dependent Claim
49 words
A lead oxide cell comprising a highly active metal negative electrode, a positive electrode and a non-aqueous electrolyte comprising a salt dissolved in an organic solvent; said positive electrode comprising a substantially uniform mixture of lead dioxide and lead particles and said cell having a substantially unipotential discharge voltage.
Claim 15
Dependent Claim
24 words
The lead oxide cell of claim 12 wherein said lead dioxide and lead particles are sized between about 0.04 mm and about 0.47 mm.
Claim 16
Dependent Claim
29 words
The lead oxide cell of claim 12 wherein the lead varies between about 5 percent and about 40 percent based on the weight of the lead and lead dioxide.
Claim 17
Dependent Claim
31 words
The lead oxide cell of claim 12 wherein the active metal negative electrode is selected from the group consisting of aluminum, the alkali metals, the alkaline earth metals and alloys thereof.
Claim 18
Dependent Claim
26 words
The lead oxide cell of claim 12 wherein the solute of the electrolyte is a complex salt of a Lewis acid and an inorganic ionizable salt.
Claim 19
Dependent Claim
45 words
The lead oxide cell of claim 12 wherein the solvent of the electrolyte is at least one solvent selected from the group consisting of sulfolane; crotonitrile; nitrobenzene; tetrahydrofuran; 1,3-dioxolane; 3-methyl-2-oxazolidone; propylene carbonate; γ-butyrolactone; ethylene glycol sulfite; dimethylsulfite; dimethyl sulfoxide; 1,1- and 1,2-dimethoxyethane; and dimethyl isoxazole.
Claim 20
Dependent Claim
24 words
The lead oxide cell of claim 14 wherein said lead dioxide and lead particles are sized between about 0.04 mm and about 0.47 mm.
Claim 21
Dependent Claim
15 words
The lead oxide cell of claim 15 wherein the active metal negative electrode is lithium.
Claim 22
Dependent Claim
27 words
The lead oxide cell of claim 19 wherein the active metal negative electrode is selected from the group consisting of lithium, sodium, potassium, calcium, and alloys thereof.
Claim 23
Dependent Claim
27 words
The lead oxide cell of claim 17 wherein said at least one solvent is selected from the group consisting of sulfolane; 3-methyl-2-oxazolidone; propylene carbonate; 1,3-dioxolane; and dimethoxyethane.
Claim 24
Dependent Claim
51 words
A lead oxide cell comprising a highly active metal negative electrode, a positive electrode and a non-aqueous electrolyte comprising a salt dissolved in an organic solvent; said positive electrode comprising a substantially uniform mixture of lead dioxide, lead monoxide and lead particles; and said cell having a substantially unipotential discharge voltage.
Claim 25
Dependent Claim
51 words
A lead oxide cell comprising a highly active metal negative electrode, a positive electrode and a non-aqueous electrolyte comprising a salt dissolved in an organic solvent; said positive electrode comprising a substantially uniform mixture of lead dioxide, lead monoxide and lead particles; and said cell having a substantially unipotential discharge voltage.
Claim 26
Dependent Claim
30 words
The lead oxide cell of claim 22 wherein said lead dioxide, lead monoxide and lead are in the form of particles sized between about 0.04 mm and about 0.47 mm.
Claim 27
Dependent Claim
31 words
The lead oxide cell of claim 22 wherein the active metal negative electrode is selected from the group consisting of aluminum, the alkali metals, the alkaline earth metals and alloys thereof.
Claim 28
Dependent Claim
26 words
The lead oxide cell of claim 22 wherein the solute of the electrolyte is a complex salt of a Lewis acid and an inorganic ionizable salt.
Claim 29
Dependent Claim
45 words
The lead oxide cell of claim 22 wherein the solvent of the electrolyte is at least one solvent selected from the group consisting of sulfolane; crotonitrile; nitrobenzene; tetrahydrofuran; 1,3-dioxolane; 3-methyl-2-oxazolidone; propylene carbonate; γ-butyrolactone; ethylene glycol sulfite; dimethylsulfite; dimethyl sulfoxide; 1,1- and 1,2-dimethoxyethane; and dimethyl isoxazole.
Claim 30
Dependent Claim
18 words
The lead oxide cell of claim 23 wherein the lead monoxide particles have an inner core of lead.
Claim 31
Dependent Claim
27 words
The lead oxide cell of claim 24 wherein the active metal negative electrode is selected from the group consisting of lithium, sodium, potassium, calcium, and alloys thereof.
Claim 32
Dependent Claim
15 words
The lead oxide cell of claim 28 wherein the active metal negative electrode is lithium.
Claim 33
Dependent Claim
27 words
The lead oxide cell of claim 26 wherein said at least one solvent is selected from the group consisting of sulfolane; 3-methyl-2-oxazolidone; propylene carbonate; 1,3-dioxolane; and dimethoxyethane.
References Cited (Backward Citations)
US3877983A
Cited
US3907597A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1980-09-19 | 1981-03-21 | 1981-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-09-19 | 1985-03-21 | 1985-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-09-19 | 1989-03-21 | 1989-09-20 | $7700.00 | Window Closed / Lapsed |