US3928066A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrolytic cell with minimal water dissipation
Assignee: Individual
•
Filing: 1974-05-07
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Granted: 1975-12-23
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Expires: 1994-05-07
Abstract
Abstract A rechargeable lead acid storage battery having a lead anode, a lead dioxide cathode, a sulfuric acid electrolyte and a quaternary ammonium compound wherein there has been substituted for all the hydrogen atoms an aliphatic and/or aromatic group. The quaternary ammonium compound is placed in contact with the electrolyte by dissolving the compound in the electrolyte, or by placing the quaternary ammonium compound in the battery container prior to the addition of the electrolyte or by depositing the compound on the anode, for example, via a readily evaporated solvent which leaves a residue of the compound on the anode, or, for example, by thermal evaporation. The compound inhibits the evolution of gaseous hydrogen and thereby attenuates the loss of water.
Inventors
- 👤 Hoshea L Lewenstein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 07:27
CPC Classifications
H; H01; H01M; H01M10/00; H01M10/06; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
61 words
A RECHARGEABLE BATTERY COMPRISING: A LEAD ANODE; A LEAD DIOXIDE CATHODE; A SULFURIC ACID ELECTROLYTE WITHIN A CONTAINER THEREOF, SAID LEAD ANODE AND SAID LEAD DIOXIDE CATHODE BEING IMMERSED IN SAID ELECTROLYTE; AND A QUATERNARY AMMONIUM COMPOUND LOCATED WITHIN SAID CONTAINER IN CONTACT WITH SAID ELECTROLYTE, SAID COMPOUND BEING SOLUBLE IN WATER TO FORM AN ANION AND A QUATERNARY AMMONIUM CATION.
Claim 2
Dependent Claim
61 words
A RECHARGEABLE BATTERY COMPRISING: A LEAD ANODE; A LEAD DIOXIDE CATHODE; A SULFURIC ACID ELECTROLYTE WITHIN A CONTAINER THEREOF, SAID LEAD ANODE AND SAID LEAD DIOXIDE CATHODE BEING IMMERSED IN SAID ELECTROLYTE; AND A QUATERNARY AMMONIUM COMPOUND LOCATED WITHIN SAID CONTAINER IN CONTACT WITH SAID ELECTROLYTE, SAID COMPOUND BEING SOLUBLE IN WATER TO FORM AN ANION AND A QUATERNARY AMMONIUM CATION.
Claim 3
Dependent Claim
30 words
A battery according to claim 1 wherein said quaternary ammonium compound has the formula N(R)4X wherein X is an anion, and an individual R is an aromatic or aliphatic group.
Claim 4
Dependent Claim
27 words
A battery according to claim 2 wherein at least one of the R groups is aromatic and at least one other of the R groups is aliphatic.
Claim 5
Dependent Claim
66 words
A battery according to claim 2 wherein said quaternary ammonium compound is composed of the mixed aromatic-aliphatic group consisting of vinylbenzyl trimethyl ammonium and polymers thereof with their counter anions and trimethyl phenyl ammonium plus an anion wherein each of said anions is drawn from the class of anions which form soluble lead salts, said class consisting of perchlorate, sulfate, nitrate, fluoborate, fluosilicate, trifluoroacetate, and halides.
Claim 6
Dependent Claim
12 words
A battery according to claim 2 wherein R is an aliphatic group.
Claim 7
Dependent Claim
24 words
A battery according to claim 5 wherein R is drawn from the class of alkyl groups consisting of butyl, methyl, propyl, heptyl and ethyl.
Claim 8
Dependent Claim
44 words
A battery according to claim 6 wherein said quaternary ammonium compound is a tetraalkyl ammonium compound wherein from one to three of the alkyl groups has from four to ten carbon atoms, the remainder of the alkyl groups having less than four carbon atoms.
Claim 9
Dependent Claim
18 words
A battery according to claim 7 wherein the alkyl groups having less than four carbon atoms are methyl.
Claim 10
Dependent Claim
36 words
A battery according to claim 2 wherein said quaternary ammonium compound comprises an anion drawn from the class of anions which form soluble lead salts consisting of perchlorate, sulfate, nitrate, fluoborate, fluosilicate, trifluoroacetate and halides. Pg,12
Claim 11
Dependent Claim
17 words
A battery according to claim 1 wherein said quaternary ammonium compound is deposited upon said lead anode.
Claim 12
Dependent Claim
58 words
An electric storage battery comprising: a lead electrode and a lead dioxide electrode; a sulfuric acid electrolyte within a container thereof, each of said electrodes being immersed within said electrolyte; and means for suppressing the evolution of gas from a chemical reaction between said electrolyte and an electrode, said means including a quaternary ammonium ion in said electrolyte.
Claim 13
Dependent Claim
58 words
An electric storage battery comprising: a lead electrode and a lead dioxide electrode; a sulfuric acid electrolyte within a container thereof, each of said electrodes being immersed within said electrolyte; and means for suppressing the evolution of gas from a chemical reaction between said electrolyte and an electrode, said means including a quaternary ammonium ion in said electrolyte.
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) | 1978-12-22 | 1979-06-23 | 1979-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-22 | 1983-06-23 | 1983-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-22 | 1987-06-23 | 1987-12-23 | $7700.00 | Window Closed / Lapsed |