US4208474A
Expired / Lapsed
US
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Cell containing alkali metal anode, cathode and alkali metal-metal-chalcogenide compound solid electrolyte
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1978-12-28
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Granted: 1980-06-17
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Expires: 1998-12-28
Abstract
Abstract A novel electrochemical cell is disclosed which contains an alkali metal anode, an electrolyte and a chalcogenide cathode wherein the electrolyte is a solid composition containing an electrolytically active amount of one or more compounds having the formula: A.sub.x B.sub.y C.sub.2 wherein A is an alkali metal, wherein B is an element selected from the group consisting of boron and aluminum, wherein C is a chalcogen, wherein x and y are each greater than zero and wherein x+3y=4. A preferred compound is LiBS 2 . A preferred cell is one having a lithium-containing anode, a titanium disulfide cathode-active material cathode and the mentioned electrolyte compound.
Inventors
- 👤 Allan J. Jacobson
- 👤 Bernard G. Silbernagel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:30
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/36; H01M4/58; H01M4/581; H01M6/00; H01M6/14; H01M6/18
Claims Analysis
Total Claims: 36
Claim 1
Independent Claim
96 words
In an electric current-producing cell containing an anode having an alkali metal as its anode-acitve material, an electrolyte, and a chalcogenide-containing cathode, the improvement comprising: said electrolyte being a solid composition containing an electrolytically active amount of one or more compounds having the formula: A.sub.x B.sub.y C.sub.2 wherein A is an alkali metal, wherein B is an element from the group consisting of boron, aluminum and mixtures thereof, wherein C is a chalcogen selected from the group consisting of sulfur, selenium and tellurium, wherein x and y are numerical values greater than zero and wherein x+3y=4.
Claim 2
Dependent Claim
96 words
In an electric current-producing cell containing an anode having an alkali metal as its anode-acitve material, an electrolyte, and a chalcogenide-containing cathode, the improvement comprising: said electrolyte being a solid composition containing an electrolytically active amount of one or more compounds having the formula: A.sub.x B.sub.y C.sub.2 wherein A is an alkali metal, wherein B is an element from the group consisting of boron, aluminum and mixtures thereof, wherein C is a chalcogen selected from the group consisting of sulfur, selenium and tellurium, wherein x and y are numerical values greater than zero and wherein x+3y=4.
Claim 3
Dependent Claim
20 words
The cell of claim 1 wherein said alkali metal A is selected from the group consisting of lithium and sodium.
Claim 4
Dependent Claim
11 words
the cell of claim 2 wherein said element B is boron.
Claim 5
Dependent Claim
19 words
The cell of claim 3 wherein said chalcogen C is selected from the group consisting of sulfur and selenium.
Claim 6
Dependent Claim
26 words
The cell of claim 4 wherein said anode has an anode-active material which is the same alkali metal as the alkali metal A in the electrolyte.
Claim 7
Dependent Claim
10 words
The cell of claim 5 wherein said chalcogen is sulfur.
Claim 8
Dependent Claim
23 words
The cell of claim 6 wherein said alkali metal A is lithium and wherein said anode has lithium as its anodic active material.
Claim 9
Dependent Claim
11 words
The cell of claim 2 wherein said element B is aluminum.
Claim 10
Dependent Claim
19 words
The cell of claim 8 wherein said chalcogen C is selected from the group consisting of sulfur and selenium.
Claim 11
Dependent Claim
11 words
The cell of claim 9 wherein said chalcogen C is sulfur.
Claim 12
Dependent Claim
22 words
The cell of claim 10 wherein said alkali metal A is lithium and wherein said anode has lithium as its anode-active material.
Claim 13
Dependent Claim
119 words
In an electric current-producing cell containing an anode having an alkali metal as its anode-active material, an electrolyte, and a cathode having as its cathode-active material, one or more chalcogenides selected from the sulfides, selenides and tellurides of titanium, zirconium, hafnium, niobium, tantalum and vanadium, the improvement comprising: said electrolyte being a solid composition containing an electrolytically active amount of one or more compounds having the formula: A.sub.x B.sub.y C.sub.2 wherein A is an alkali metal, wherein B is an element from the group consisting of boron, aluminum and mixtures thereof, wherein C is a chalcogen selected from the group consisting of sulfur, selenium and tellurium, wherein x and y are numerical values greater than zero and wherein x+3y=4.
Claim 14
Dependent Claim
119 words
In an electric current-producing cell containing an anode having an alkali metal as its anode-active material, an electrolyte, and a cathode having as its cathode-active material, one or more chalcogenides selected from the sulfides, selenides and tellurides of titanium, zirconium, hafnium, niobium, tantalum and vanadium, the improvement comprising: said electrolyte being a solid composition containing an electrolytically active amount of one or more compounds having the formula: A.sub.x B.sub.y C.sub.2 wherein A is an alkali metal, wherein B is an element from the group consisting of boron, aluminum and mixtures thereof, wherein C is a chalcogen selected from the group consisting of sulfur, selenium and tellurium, wherein x and y are numerical values greater than zero and wherein x+3y=4.
Claim 15
Dependent Claim
20 words
The cell of claim 12 wherein said alkali metal A is selected from the group consisting of lithium and sodium.
Claim 16
Dependent Claim
11 words
The cell of claim 13 wherein said element B is boron.
Claim 17
Dependent Claim
18 words
The cell of claim 14 wherein said chalcogen is selected from the group consisting of sulfur and selenium.
Claim 18
Dependent Claim
26 words
The cell of claim 15 wherein said anode has an anode-active material which is the same alkali metal as the alkali metal A in the electrolyte.
Claim 19
Dependent Claim
21 words
The cell of claim 16 wherein said chalcogenide in said cathode contains the same chalcogen as the chalcogen in the electrolyte.
Claim 20
Dependent Claim
11 words
The cell of claim 17 wherein said chalcogen C is sulfur.
Claim 21
Dependent Claim
11 words
The cell of claim 13 wherein said element B is aluminum.
Claim 22
Dependent Claim
19 words
The cell of claim 19 wherein said chalcogen C is selected from the group consisting of sulfur and selenium.
Claim 23
Dependent Claim
22 words
The cell of claim 20 wherein said chalcogenide in said cathode contains the same chalcogen as the chalcogen C in the electrolyte.
Claim 24
Dependent Claim
11 words
The cell of claim 21 wherein said chalcogen C is sulfur.
Claim 25
Dependent Claim
22 words
The cell of claim 13 wherein said chalcogenides are selected from the sulfides, selenides and tellurides of titanium, niobium, tantalum and vanadium.
Claim 26
Dependent Claim
20 words
The cell of claim 23 wherein said alkali metal A is selected from the group consisting of lithium and sodium.
Claim 27
Dependent Claim
11 words
The cell of claim 24 wherein said element B is boron.
Claim 28
Dependent Claim
19 words
The cell of claim 25 wherein said chalcogen C is selected from the group consisting of sulfur and selenium.
Claim 29
Dependent Claim
26 words
The cell of claim 26 wherein said anode has an anode-active material which is the same alkali metal as the alkali metal A in the electrolyte.
Claim 30
Dependent Claim
22 words
The cell of claim 27 wherein said chalcogenide in said cathode contains the same chalcogen as the chalcogen C in the electrolyte.
Claim 31
Dependent Claim
11 words
The cell of claim 24 wherein said element B is aluminum.
Claim 32
Dependent Claim
19 words
The cell of claim 29 wherein said chalcogen C is selected from the group consisting of sulfur and selenium.
Claim 33
Dependent Claim
23 words
The cell of claim 30 wherein said alkali metal A is lithium and wherein said anode has lithium as its anodic active material.
Claim 34
Dependent Claim
22 words
The cell of claim 31 wherein said chalcogenide in said cathode contains the same chalcogen as the chalcogen C in the electrolyte.
Claim 35
Dependent Claim
14 words
The cell of claim 25 wherein said chalcogenide in said cathode is titanium disulfide.
Claim 36
Dependent Claim
14 words
The cell of claim 29 wherein said chalcogenide in said cathode is titanium disulfide.
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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) | 1983-06-17 | 1983-12-17 | 1984-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-06-17 | 1987-12-17 | 1988-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-06-17 | 1991-12-17 | 1992-06-17 | $7700.00 | Window Closed / Lapsed |