US4156055A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anode for thermal cell
Assignee: White Consolidated Industries Inc
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Filing: 1961-06-01
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Granted: 1979-05-22
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Expires: 1981-06-01
Abstract
Abstract 7. In a thermal cell including a mass of electrolyte, a depolarizing agent, a cathode, and an anode; the improvement wherein said anode comprises a pelletized mixture of an anode metal and a refractory non-flow agent, said anode metal having a fushion point within the optimum operating temperature range of the cell and being selected from the group consisting of magnesium-aluminum alloys, mixtures of magnesium and aluminum powders, calcium-magnesium alloys, mixtures of calcium and magnesium powders, and zinc, and said non-flow agent being selected from the group consisting of zirconium oxide and alumina.
Inventors
- 👤 Glenn F. Zellhoefer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:14
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/36; H01M4/38; H01M6/00; H01M6/30; H01M6/36; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24058; Y10T428/24074; Y10T428/24116
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
105 words
In a thermal cell having the electrochemical system M/KCl-LiCl-kaolin/KCl-LiCl-V 2 O 5 /V 2 O 5 -B 2 O 3 /Ni, wherein M comprises an anode metal, the improvement comprising an anode comprising a compressed mixture of particles of a fusible anode metal and a refractory non-flow agent, said anode metal being selected from the group consisting of a magnesium-aluminum alloy containing about 68 wt. % magnesium and about 32 wt. % aluminum, zinc, and a calcium-magnesium alloy containing about 78 wt. % calcium and about 22 wt. % magnesium, and said non-flow agent being selected from the group consisting of zirconium oxide and alumina.
Claim 2
Dependent Claim
105 words
In a thermal cell having the electrochemical system M/KCl-LiCl-kaolin/KCl-LiCl-V 2 O 5 /V 2 O 5 -B 2 O 3 /Ni, wherein M comprises an anode metal, the improvement comprising an anode comprising a compressed mixture of particles of a fusible anode metal and a refractory non-flow agent, said anode metal being selected from the group consisting of a magnesium-aluminum alloy containing about 68 wt. % magnesium and about 32 wt. % aluminum, zinc, and a calcium-magnesium alloy containing about 78 wt. % calcium and about 22 wt. % magnesium, and said non-flow agent being selected from the group consisting of zirconium oxide and alumina.
Claim 3
Dependent Claim
23 words
A thermal cell according to claim 1 further characterized in that said anode also includes a minor amount of a fusible salt electrolyte.
Claim 4
Dependent Claim
26 words
A thermal cell according to claim 1 further characterized in that said anode also includes a minor amount of a eutectic mixture of KCl and LiCl.
Claim 5
Dependent Claim
22 words
A thermal cell according to claim 1 wherein said anode metal comprises said magnesium-aluminum alloy and said non-flow agent comprises zirconium oxide.
Claim 6
Dependent Claim
19 words
A thermal cell according to claim 1 wherein said anode metal comprises zinc and said non-flow agent comprises alumina.
Claim 7
Dependent Claim
22 words
A thermal cell according to claim 1 wherein said anode metal comprises said calcium-magnesium alloy and said non-flow agent comprises zirconium oxide.
Claim 8
Dependent Claim
92 words
In a thermal cell including a mass of electrolyte, a depolarizing agent, a cathode, and an anode; the improvement wherein said anode comprises a pelletized mixture of an anode metal and a refractory non-flow agent, said anode metal having a fusion point within the optimum operating temperature range of the cell and being selected from the group consisting of magnesium-aluminum alloys, mixtures of magnesium and aluminum powders, calcium-magnesium alloys, mixtures of calcium and magnesium powders, and zinc, and said non-flow agent being selected from the group consisting of zirconium oxide and alumina.
Claim 9
Dependent Claim
92 words
In a thermal cell including a mass of electrolyte, a depolarizing agent, a cathode, and an anode; the improvement wherein said anode comprises a pelletized mixture of an anode metal and a refractory non-flow agent, said anode metal having a fusion point within the optimum operating temperature range of the cell and being selected from the group consisting of magnesium-aluminum alloys, mixtures of magnesium and aluminum powders, calcium-magnesium alloys, mixtures of calcium and magnesium powders, and zinc, and said non-flow agent being selected from the group consisting of zirconium oxide and alumina.
Claim 10
Dependent Claim
27 words
A thermal cell according to claim 7 further characterized in that said anode metal has a fusion temperature of from about 415° C. to about 460° C.
Claim 11
Dependent Claim
27 words
A thermal cell according to claim 7 further characterized in that said anode metal has a fusion temperature of from about 435° C. to about 445° C.
Claim 12
Dependent Claim
27 words
A thermal cell according to claim 7 wherein said anode metal comprises a magnesium-aluminum alloy containing from about 50 wt. % to about 68 wt. % magnesium.
Claim 13
Dependent Claim
26 words
A thermal cell according to claim 7 wherein said anode metal comprises an alloy containing about 68 wt. % magnesium and about 32 wt. % aluminum.
Claim 14
Dependent Claim
40 words
A thermal cell according to claim 7 wherein said anode metal comprises a mixture of magnesium and aluminum powders so proportioned as to yield upon fusion an alloy containing about 68 wt. % magnesium and about 32 wt. % aluminum.
Claim 15
Dependent Claim
14 words
A thermal cell according to claim 7 wherein said non-flow agent comprises zirconium oxide.
Claim 16
Dependent Claim
13 words
A thermal cell according to claim 7 wherein said non-flow agent comprises alumina.
Claim 17
Dependent Claim
13 words
A thermal cell according to claim 7 wherein said anode metal comprises zinc.
Claim 18
Dependent Claim
26 words
A thermal cell according to claim 7 wherein said anode metal comprises an alloy containing about 78 wt. % calcium and about 22 wt. % magnesium.
Claim 19
Dependent Claim
24 words
A thermal cell according to claim 7 further characterized in that said anode also includes a minor amount of a eutectic mixture of KCl-LiCl.
Claim 20
Dependent Claim
101 words
In a thermal cell having the electrochemical system M/KCl-LiCl-kaolin/KCl-LiCl-V 2 O 5 /V 2 O 5 -B 2 O 3 /Ni, wherein M comprises an anode metal; the improvement wherein M comprises a pelletized mixture of an anode metal and a refractory non-flow agent, said anode metal having a fusion point within the optimum operating temperature range of the cell and being selected from the group consisting of magnesium-aluminum alloys, mixtures of magnesium and aluminum powders, calcium-magnesium alloys, mixtures of calcium and magnesium powders, and zinc, and said non-flow agent being selected from the group consisting of zirconium oxide and alumina.
Claim 21
Dependent Claim
101 words
In a thermal cell having the electrochemical system M/KCl-LiCl-kaolin/KCl-LiCl-V 2 O 5 /V 2 O 5 -B 2 O 3 /Ni, wherein M comprises an anode metal; the improvement wherein M comprises a pelletized mixture of an anode metal and a refractory non-flow agent, said anode metal having a fusion point within the optimum operating temperature range of the cell and being selected from the group consisting of magnesium-aluminum alloys, mixtures of magnesium and aluminum powders, calcium-magnesium alloys, mixtures of calcium and magnesium powders, and zinc, and said non-flow agent being selected from the group consisting of zirconium oxide and alumina.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-05-21 | 1982-11-20 | 1983-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-05-21 | 1986-11-20 | 1987-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-05-21 | 1990-11-20 | 1991-05-22 | $7700.00 | Window Closed / Lapsed |