US4522901A
Expired / Lapsed
US
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Secondary battery containing organoborate electrolyte
Assignee: Honeywell International Inc
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Filing: 1983-11-30
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Granted: 1985-06-11
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Expires: 2003-11-30
Abstract
Abstract Secondary batteries with conjugated polymer anodes, such as polyacetylene, contain an electrolyte including a salt of the formula MB4-w-y-zR'wR''yXz wherein M is an alkali metal, B is boron, R is alkyl, R' is aryl or alkyl-substituted aryl, R'' is heterocycle, X is F, Cl, Br, I, CN, OCN, SCN, fluoroaryl or perfluoroalkyl-substituted aryl, w and y are integers of 0 to 4, and z is an integer of 0 to 4, provided that when X is solely F, Cl, I, Br, CN, OCN, SCN or perfluororalkyl, Z is not 4; with the sum x+y+z being equal to or less than 4. Exemplary salts are LiBMe4, LiBMe2Ph2, LiBMe2PhPy, LiBMe2Py2 and KBPh3SCN (where M=methyl, Ph=phenyl and Py=pyrrolyl). Cathodes such as conjugated backbone polymers (e.g. polyacetylene) and transition-metal chalcogenides (e.g. TiS2) are disclosed. The battery can be charged to a state wherein the anode is in a reduced state of 0.1 V-0.5 V (relative to M/M+) where a voltage plateau exists in some instances.
Inventors
- 👤 Lawrence W. Shacklette
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:05
CPC Classifications
H; H01; H01M; H01M10/00; H01M10/05; H01M6/00; H01M6/14; H01M6/16; H01M6/162; H01M6/166; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 31
Claim 1
Independent Claim
145 words
A secondary battery comprising: (a) an electrolyte comprising a solution of a salt of the formula MBR.sub.4-w-y-z R'.sub.w R".sub.y X.sub.z wherein M is an alkali metal, B is boron R is alkyl, R' is aryl or alkyl-substituted aryl, R" is a heterocycle, X is F, Cl, Br, I, CN, OCN, SCN, perfluoroalkyl, fluoroaryl or perfluoroalkyl-substituted aryl and w and y are integers of 0 to 4, and z is an integer of 0 to 4, provided that when X is solely F, Cl, I, Br, CN, OCN, SCN or perfluoroalkyl, z is not 4; with the sum w+y+z being equal to or less than 4; (b) an anode containing a conjugated backbone polymer which, in a reduced state, has a potential of between about 0.1 V and about 0.5 V (relative to M/M + ) and (c) a cathode which is separated from the anode.
Claim 2
Dependent Claim
145 words
A secondary battery comprising: (a) an electrolyte comprising a solution of a salt of the formula MBR.sub.4-w-y-z R'.sub.w R".sub.y X.sub.z wherein M is an alkali metal, B is boron R is alkyl, R' is aryl or alkyl-substituted aryl, R" is a heterocycle, X is F, Cl, Br, I, CN, OCN, SCN, perfluoroalkyl, fluoroaryl or perfluoroalkyl-substituted aryl and w and y are integers of 0 to 4, and z is an integer of 0 to 4, provided that when X is solely F, Cl, I, Br, CN, OCN, SCN or perfluoroalkyl, z is not 4; with the sum w+y+z being equal to or less than 4; (b) an anode containing a conjugated backbone polymer which, in a reduced state, has a potential of between about 0.1 V and about 0.5 V (relative to M/M + ) and (c) a cathode which is separated from the anode.
Claim 3
Dependent Claim
12 words
The secondary battery of claim 1 wherein y and z are 0.
Claim 4
Dependent Claim
10 words
The secondary battery of claim 2 wherein M is Li.
Claim 5
Dependent Claim
10 words
The secondary battery of claim 2 wherein M is Na.
Claim 6
Dependent Claim
16 words
The secondary battery of claim 2 wherein R' is phenyl and w is at least 1.
Claim 7
Dependent Claim
19 words
The secondary battery of claim 2 wherein R is alkyl of 1-4 carbon and 4-w-y-z is at least 1.
Claim 8
Dependent Claim
14 words
The secondary battery of claim 1 wherein z is 1 and y is 0.
Claim 9
Dependent Claim
20 words
The secondary battery of claim 7 wherein X is selected from the group consisting of F, SCN, OCN and CN.
Claim 10
Dependent Claim
14 words
The secondary battery of claim 8 wherein R' is phenyl and w is 3.
Claim 11
Dependent Claim
11 words
The secondary battery of claim 8 wherein said anode contains polyacetylene.
Claim 12
Dependent Claim
11 words
The secondary battery of claim 2 wherein said anode contains polyacetylene.
Claim 13
Dependent Claim
11 words
The secondary battery of claim 1 wherein said anode contains polyacetylene.
Claim 14
Dependent Claim
11 words
The secondary battery of claim 1 wherein said anode contains polyphenylene.
Claim 15
Dependent Claim
39 words
The secondary battery of claim 1 wherein said anode and said cathode each contain reduced polyacetylene, with said anode being polyacetylene reduced by incorporation of alkali metal cations to a greater degree than said cathode in the charged state.
Claim 16
Dependent Claim
50 words
The secondary battery of claim 14 wherein, in the charged state, said anode is at a potential between about 0.1 V and about 0.5 V, relative to M/M + , and said cathode is at a potential between about 1.5 V and about 2.0 V, relative to Li/Li + .
Claim 17
Dependent Claim
17 words
The secondary battery of claim 1 wherein the salt is dissolved in an inert organic ether solvent.
Claim 18
Dependent Claim
13 words
The secondary battery of claim 1 wherein the salt is dissolved in tetrahydrofuran.
Claim 19
Dependent Claim
13 words
The secondary battery of claim 1 wherein the salt is dissolved in 2-methyltetrahydrofuran.
Claim 20
Dependent Claim
21 words
The secondary battery of claim 1 wherein the cathode comprises a transition-metal chalcogenide into which alkali-metal cations are inserted during discharging.
Claim 21
Dependent Claim
14 words
The secondary battery of claim 19 wherein said transition-metal chalcogenide is TiS 2 .
Claim 22
Dependent Claim
10 words
The secondary battery of claim 20 wherein M is Li.
Claim 23
Dependent Claim
31 words
The secondary battery of claim 19 wherein the electrolyte comprises a mixture of salts of said formula, being a salt with M being Li and a salt with M being K.
Claim 24
Dependent Claim
13 words
The secondary battery of claim 1 wherein y and z are each 0.
Claim 25
Dependent Claim
10 words
The secondary battery of claim 23 wherein w is 0.
Claim 26
Dependent Claim
13 words
The secondary battery of claim 24 wherein R is alkyl of 1-4 carbons.
Claim 27
Dependent Claim
10 words
The secondary battery of claim 25 wherein w is 4.
Claim 28
Dependent Claim
10 words
The secondary battery of claim 26 wherein R' is phenyl.
Claim 29
Dependent Claim
16 words
The secondary battery of claim 1 wherein y is at least 1 and R" is pyrrolyl.
Claim 30
Dependent Claim
17 words
The secondary battery of claim 28 wherein z is 0 and y is 1, 2 or 3.
Claim 31
Dependent Claim
19 words
The secondary battery of claim 1 wherein z is 3 or 4, and x is F, fluoroaryl or perfluoroalkylaryl.
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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) | 1988-06-10 | 1988-12-10 | 1989-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-06-10 | 1992-12-10 | 1993-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-06-10 | 1996-12-10 | 1997-06-11 | $7700.00 | Window Closed / Lapsed |