US4201839A
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Cell containing an alkali metal anode, a solid cathode, and a closoborane and/or closocarborane electrolyte
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1978-11-01
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Granted: 1980-05-06
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Expires: 1998-11-01
Abstract
Abstract A novel electrochemical cell is disclosed which contains an alkali metal anode, a solid cathode, and an electrolyte containing one or more closoborane and/or closocarborane compounds in aprotic solvent. Preferred cells are those containing lithium anodes, chalcogenide cathodes and electrolytes containing one or more closoborane compounds in aprotic solvent with a chelating agent.
Inventors
- 👤 Jack W. Johnson
- 👤 M. Stanley Whittingham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:40
CPC Classifications
H; H01; H01M; H01M10/00; H01M10/05; H01M10/056; H01M10/0564; H01M10/0566; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 45
Claim 1
Independent Claim
142 words
An electrochemical cell, comprising: (a) an alkali metal-containing anode; (b) a solid cathode; and, (c) an electrolyte containing one or more compounds selected from the group consisting of: (i) closoborane compounds of the formula: Z.sub.2 B.sub.n X.sub.n wherein Z is an alkali metal, B is boron, X is one or more substituents selected from the group consisting of hydrogen and the halogens, and n is an integer from 6 to 12; and, (ii) closocarborane compounds of the formula: ZCRB.sub.m X.sub.m wherein Z, B and X are as defined above, C is carbon, and R is selected from the group consisting of inertly substituted and unsubstituted alkyls, aryls, alkaryls and aralkyls, hydrogen, and the halogens, said compounds being dissolved in aprotic organic solvent in the presence of a chelating agent sufficient to enable the migration of ions between said anode and said cathode.
Claim 2
Dependent Claim
142 words
An electrochemical cell, comprising: (a) an alkali metal-containing anode; (b) a solid cathode; and, (c) an electrolyte containing one or more compounds selected from the group consisting of: (i) closoborane compounds of the formula: Z.sub.2 B.sub.n X.sub.n wherein Z is an alkali metal, B is boron, X is one or more substituents selected from the group consisting of hydrogen and the halogens, and n is an integer from 6 to 12; and, (ii) closocarborane compounds of the formula: ZCRB.sub.m X.sub.m wherein Z, B and X are as defined above, C is carbon, and R is selected from the group consisting of inertly substituted and unsubstituted alkyls, aryls, alkaryls and aralkyls, hydrogen, and the halogens, said compounds being dissolved in aprotic organic solvent in the presence of a chelating agent sufficient to enable the migration of ions between said anode and said cathode.
Claim 3
Dependent Claim
14 words
The cell of claim 1 wherein said electrolyte contains one or more closoborane compounds.
Claim 4
Dependent Claim
20 words
The cell of claim 2 wherein said variable X is selected from the group consisting of H, F and Cl.
Claim 5
Dependent Claim
16 words
The cell of claim 2 wherein said variable n is an integer from 8 to 12.
Claim 6
Dependent Claim
30 words
The cell of claim 2 wherein said variable X is selected from the group consisting of H and Cl, and said variable n is an integer from 10 to 12.
Claim 7
Dependent Claim
23 words
The cell of claim 2 wherein about 2 to about 50 grams of compound are used per 100 grams of aprotic organic solvent.
Claim 8
Dependent Claim
14 words
The cell of claim 1 wherein said electrolyte contains one or more closocarborane compounds.
Claim 9
Dependent Claim
52 words
The cell of claim 7 wherein the variable R is selected from the group consisting of inertly substituted and unsubstituted organic radicals selected from alkyls having 1 to 8 carbon atoms, aryls having 6 to 18 carbon atoms and alkaryls and aralkyls having 7 to 50 carbon atoms, hydrogen and the halogens.
Claim 10
Dependent Claim
18 words
The cell of claim 8 wherein R is selected from the group consisting of hydrogen and the halogens.
Claim 11
Dependent Claim
18 words
The cell of claim 9 wherein R is selected from the group consisting of H, F and Cl.
Claim 12
Dependent Claim
46 words
The cell of claim 8 wherein R is selected from the group consisting of inertly substituted and unsubstituted organic radicals selected from alkyls having 2 to 6 carbon atoms, aryls having 6 to 12 carbon atoms and alkaryls and aralkyls having 7 to 25 carbon atoms.
Claim 13
Dependent Claim
35 words
The cell of claim 11 wherein R is selected from the group consisting of inertly substituted and unsubstituted organic radicals selected from the group consisting of alkyls having 2 to 4 carbon atoms and phenyl.
Claim 14
Dependent Claim
23 words
The cell of claim 7 wherein about 2 to about 50 grams of compound are used per 100 grams of aprotic organic solvent.
Claim 15
Dependent Claim
24 words
The cell of claim 1 wherein said alkali metal-containing anode contains an alkali metal selected from the group consisting of lithium, sodium and potassium.
Claim 16
Dependent Claim
12 words
The cell of claim 14 wherein said solid cathode is a chalcogenide.
Claim 17
Dependent Claim
14 words
The cell of claim 15 wherein said electrolyte contains one or more closoborane compounds.
Claim 18
Dependent Claim
20 words
The cell of claim 16 wherein said variable X is selected from the group consisting of H, F and Cl.
Claim 19
Dependent Claim
16 words
The cell of claim 16 wherein said variable n is an integer from 8 to 12.
Claim 20
Dependent Claim
30 words
The cell of claim 16 wherein said variable X is selected from the group consisting of H and Cl, and said variable n is an integer from 10 to 12.
Claim 21
Dependent Claim
23 words
The cell of claim 16 wherein about 5 to about 30 grams of compound are used per 100 grams of aprotic organic solvent.
Claim 22
Dependent Claim
14 words
The cell of claim 15 wherein said electrolyte contains one or more closocarborane compounds.
Claim 23
Dependent Claim
52 words
The cell of claim 21 wherein the variable R is selected from the group consisting of inertly substituted and unsubstituted organic radicals selected from alkyls having 1 to 8 carbon atoms, aryls having 6 to 18 carbon atoms and alkaryls and aralkyls having 7 to 50 carbon atoms, hydrogen and the halogens.
Claim 24
Dependent Claim
18 words
The cell of claim 22 wherein R is selected from the group consisting of hydrogen and the halogens.
Claim 25
Dependent Claim
18 words
The cell of claim 23 wherein R is selected from the group consisting of H, F and Cl.
Claim 26
Dependent Claim
46 words
The cell of claim 24 wherein R is selected from the group consisting of inertly substituted and unsubstituted organic radicals selected from alkyls having 2 to 6 carbon atoms, aryls having 6 to 12 carbon atoms and alkaryls and aralkyls having 7 to 25 carbon atoms.
Claim 27
Dependent Claim
35 words
The cell of claim 25 wherein R is selected from the group consisting of inertly substituted and unsubstituted organic radicals selected from the group consisting of alkyls having 2 to 4 carbon atoms and phenyl.
Claim 28
Dependent Claim
23 words
The cell of claim 21 wherein about 5 to about 30 grams of compound are used per 100 grams of aprotic organic solvent.
Claim 29
Dependent Claim
12 words
The cell of claim 15 wherein said alkali meta-containing anode contains lithium.
Claim 30
Dependent Claim
14 words
The cell of claim 28 wherein said electrolyte contains one or more closoborane compounds.
Claim 31
Dependent Claim
20 words
The cell of claim 29 wherein said variable X is selected from the group consisting of H, F and Cl.
Claim 32
Dependent Claim
16 words
The cell of claim 29 wherein said variable n is an integer from 8 to 12.
Claim 33
Dependent Claim
30 words
The cell of claim 29 wherein said variable X is selected from the group consisting of H and Cl, and said variable n is an integer from 10 to 12.
Claim 34
Dependent Claim
23 words
The cell of claim 29 wherein about 5 to about 30 grams of compound are used per 100 grams of aprotic organic solvent.
Claim 35
Dependent Claim
14 words
The cell of claim 28 wherein said electrolyte contains one or more closocarborane compounds.
Claim 36
Dependent Claim
52 words
The cell of claim 34 wherein the variable R is selected from the group consisting of inertly substituted and unsubstituted organic radicals selected from alkyls having 1 to 8 carbon atoms, aryls having 6 to 18 carbon atoms and alkaryls and aralkyls having 7 to 50 carbon atoms, hydrogen and the halogens.
Claim 37
Dependent Claim
18 words
The cell of claim 35 wherein R is selected from the group consisting of hydrogen and the halogens.
Claim 38
Dependent Claim
18 words
The cell of claim 36 wherein R is selected from the group consisting of H, F and Cl.
Claim 39
Dependent Claim
46 words
The cell of claim 37 wherein R is selected from the group consisting of inertly substituted and unsubstituted organic radicals selected from alkyls having 2 to 6 carbon atoms, aryls having 6 to 12 carbon atoms and alkaryls and aralkyls having 7 to 25 carbon atoms.
Claim 40
Dependent Claim
35 words
The cell of claim 38 wherein R is selected from the group consisting of inertly substituted and unsubstituted organic radicals selected from the group consisting of alkyls having 2 to 4 carbon atoms and phenyl.
Claim 41
Dependent Claim
23 words
The cell of claim 34 wherein about 5 to about 30 grams of compound are used per 100 grams of aprotic organic solvent.
Claim 42
Dependent Claim
13 words
The cell of claim 1 wherein said aprotic organic solvent is an ether.
Claim 43
Dependent Claim
13 words
The cell of claim 41 wherein said chelating agent is a chelating ether.
Claim 44
Dependent Claim
30 words
The cell of claim 42 wherein said aprotic organic solvet is dioxolane, wherein said chelating agent is dimethoxyethane, said anode contains lithium and wherein said cathode contains chalcogenide cathode-active material.
Claim 45
Dependent Claim
21 words
The cell of claim 43 wherein said chalcogenide is selected from the group consisting of sulfides of titanium, molybdenum and vanadium.
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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) | 1983-05-06 | 1983-11-05 | 1984-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-05-06 | 1987-11-05 | 1988-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-05-06 | 1991-11-05 | 1992-05-06 | $7700.00 | Window Closed / Lapsed |