US3793079A
Expired / Lapsed
US
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Battery electrolyte composition
Assignee: Energy Development Associates Inc
•
Filing: 1971-11-18
•
Granted: 1974-02-19
•
Expires: 1991-11-18
Abstract
Abstract An electrolyte composition for use in an electrical energy storage device such as the battery, and, particularly a rechargeable secondary type battery comprising an aqueous solution containing a metal halide and an effective dendrite reducing amount of a soluble organic compound containing an oxygen ether group and a group of a structure -SO2 NH-.
Inventors
- 👤 H Brown
- 👤 D Becking
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:59
CPC Classifications
H; H01; H01M; H01M10/00; H01M10/36; H01M10/365; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 38
Claim 1
Independent Claim
14 words
The electrolyte as defined in claim 1 wherein said metal halide comprises zinc chloride.
Claim 2
Dependent Claim
25 words
The electrolyte as defined in claim 1 wherein said metal halide is present in a concentration of about 0.1 percent by weight up to saturation.
Claim 3
Dependent Claim
27 words
The electrolyte as defined in claim 1 wherein the soluble organic compound is present in a concentration of from about 0.001 to about 10 percent by weight.
Claim 4
Dependent Claim
26 words
The electrolyte as defined in claim 1 wherein the organic compound is present in a concentration of from about 0.005 to about 1 percent by weight.
Claim 5
Dependent Claim
35 words
The electrolyte as defined in claim 1 wherein the organic soluble compound is a diaryl ether, unsubstituted or substituted with a water solubilizing substituent or alkyl of one to four carbon atoms or a halogen.
Claim 6
Dependent Claim
14 words
The electrolyte of claim 1 wherein the -SO2NH- group is a -SO2NHSO2 - group.
Claim 7
Dependent Claim
13 words
The electrolyte of claim 1 wherein the organic compound is of the formula:
Claim 8
Dependent Claim
11 words
The electrolyte of claim 8 wherein R1 is an aryl group.
Claim 9
Dependent Claim
13 words
The electrolyte of claim 8 wherein R1 is a group of the formula:
Claim 10
Dependent Claim
11 words
The electrolyte of claim 10 wherein R2 is an aliphatic group.
Claim 11
Dependent Claim
11 words
The electrolyte of claim 10 wherein R2 is an aryl group.
Claim 12
Dependent Claim
11 words
The electrolyte of claim 10 wherein R2 is an aralkyl group.
Claim 13
Dependent Claim
57 words
An electric energy storage device comprising an electrode area having at least one positive and one negative electrode therein, wherein the negative electrode is comprised of a zinc surface, means for passing a halogen selected from the group consisting of chlorine and bromine into the electrode area, and the electrolyte of claim 1 in the electrode area.
Claim 14
Dependent Claim
15 words
The device of claim 14 wherein the halide substituent of said metal halide comprises chloride.
Claim 15
Dependent Claim
12 words
The device of claim 14 wherein the metal halide comprises zinc chloride.
Claim 16
Dependent Claim
23 words
The device of claim 14 wherein the metal halide is present in a concentration of about 0.1 percent by weight up to saturation.
Claim 17
Dependent Claim
24 words
The device of claim 14 wherein the soluble organic compound is present in a concentration of from about 0.001 to 10 percent by weight.
Claim 18
Dependent Claim
24 words
The device of claim 14 wherein the organic compound is present in a concentration of from about 0.005 to about 1 percent by weight.
Claim 19
Dependent Claim
33 words
The device of claim 14 wherein the organic soluble compound is a diaryl ether, unsubstituted or substituted with a water solubilizing substituent or alkyl of one to four carbon atoms or a halogen.
Claim 20
Dependent Claim
13 words
The device of claim 14 wherein the -SO2NH- group is a -SO2NHSO2- group.
Claim 21
Dependent Claim
13 words
The device of claim 14, wherein the organic compound is of the formula:
Claim 22
Dependent Claim
11 words
The device of claim 22 wherein R1 is an aryl group.
Claim 23
Dependent Claim
13 words
The device of claim 22 wherein R1 is a group of the formula:
Claim 24
Dependent Claim
11 words
The device of claim 22 wherein R2 is an aliphatic group.
Claim 25
Dependent Claim
11 words
The device of claim 22 wherein R2 is an aryl group.
Claim 26
Dependent Claim
11 words
The device of claim 22 wherein R2 is an aralkyl group.
Claim 27
Dependent Claim
46 words
An electrolyte composition for use in an electric energy storage device comprising an aqueous solution containing a zinc halide, wherein the halide is selected from the group consisting of chloride and bromide, and an effective dendrite reducing amount of a soluble organic compound of the formula:
Claim 28
Dependent Claim
47 words
An electric energy storage device comprising an electrode area having at least one positive and one negative electrode therein, wherein the negative electrode is comprised of a zinc surface, means for passing halogen into the electrode area and an electrolyte of claim 28 in the electrode area.
Claim 29
Dependent Claim
24 words
The electrolyte of claim 28 wherein the organic compound is present in a concentration of from about 0.001 to about 10 percent by weight.
Claim 30
Dependent Claim
24 words
The electrolyte of claim 30 wherein the zinc halide is present in an amount ranging from about 10 to about 35 percent by weight.
Claim 31
Dependent Claim
46 words
An electrolyte composition for use in an electric energy storage device comprising an aqueous solution containing a zinc halide, wherein the halide is selected from the group consisting of chloride and bromide, and an effective dendrite reducing amount of a soluble organic compound of the formula:
Claim 32
Dependent Claim
48 words
An electric energy storage device comprising an electrode area having at least one positive and one negative electrode therein, wherein the negative electrode is comprised of a zinc surface, means for passing a halogen into the electrode area and an electrolyte of claim 32 in the electrode area.
Claim 33
Dependent Claim
12 words
The device of claim 33 wherein R4 is a saturated alkylene group.
Claim 34
Dependent Claim
11 words
The device of claim 33 wherein R4 is an aralkyl group.
Claim 35
Dependent Claim
24 words
The electrolyte of claim 32 wherein the zinc halide is present in a concentration of from about 0.001 to about 10 percent by weight.
Claim 36
Dependent Claim
24 words
The electrolyte of claim 36 wherein the zinc halide is present in an amount ranging from about 10 to about 35 percent by weight.
Claim 37
Dependent Claim
12 words
The electrolyte of claim 32 wherein R4 is a saturated alkylene group.
Claim 38
Dependent Claim
11 words
The electrolyte of claim 32 wherein R4 is an aralkyl group.
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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) | 1977-02-18 | 1977-08-20 | 1978-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-18 | 1981-08-20 | 1982-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-18 | 1985-08-20 | 1986-02-19 | $7700.00 | Window Closed / Lapsed |