US4124741A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrogen/chlorine electrochemical energy storage system
Assignee: Energy Development Associates Inc
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Filing: 1977-03-04
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Granted: 1978-11-07
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Expires: 1997-03-04
Abstract
Abstract A HCl electrochemical energy storage system comprises a cell having therein an aqueous HCl electrolyte in which at least a portion of the HCl is present in disassociated form and an electrode of ungraphitised carbon, and communicating with said cell, at least one member of the group of means for storing hydrogen and means for storing chlorine, said means for storing hydrogen comprising graphitised carbon, and said means for storing chlorine comprising ungraphitised carbon.
Inventors
- 👤 Thomas G. Hart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 01:55
CPC Classifications
H; H01; H01M; H01M10/00; H01M10/36; H01M4/00; H01M4/86; H01M4/96; Y; Y02; Y02E; Y02E60/00; Y02E60/10; Y02E60/30; Y02E60/32; Y02E60/50
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
53 words
An HCl electrochemical energy storage system comprising a cell having therein an aqueous hydrochloric acid electrolyte in which at least a portion of the HCl is present in disassociated form and an electrode therein of ungraphitised carbon, and a non-halogen electrode, and communicating with said cell, means for storing hydrogen comprising graphitised carbon.
Claim 2
Dependent Claim
53 words
An HCl electrochemical energy storage system comprising a cell having therein an aqueous hydrochloric acid electrolyte in which at least a portion of the HCl is present in disassociated form and an electrode therein of ungraphitised carbon, and a non-halogen electrode, and communicating with said cell, means for storing hydrogen comprising graphitised carbon.
Claim 3
Dependent Claim
21 words
The electrochemical energy storage system of claim 1 wherein said electrolyte has a HCl concentration of at least about 20 percent.
Claim 4
Dependent Claim
19 words
The electrochemical energy storage system of claim 2 wherein said ungraphitised carbon electrode is a platinized ungraphitized carbon electrode.
Claim 5
Dependent Claim
19 words
The electrochemical storage system of claim 3 wherein said electrolyte contains a disassociating amount of an HCl disassociating agent.
Claim 6
Dependent Claim
14 words
The electrochemical storage system of claim 4 wherein said disassociating agent is titanium tetrachloride.
Claim 7
Dependent Claim
20 words
The electrochemical storage system of claim 1 wherein said electrolyte contains an effective disassociating amount of a HCl disassociating agent.
Claim 8
Dependent Claim
14 words
The electrochemical energy storage system of claim 6 wherein said agent is titanium tetrachloride.
Claim 9
Dependent Claim
23 words
The electrochemical energy storage system of claim 1 wherein said system contains means for storing chlorine comprising ungraphitised carbon communicating with said cell.
Claim 10
Dependent Claim
22 words
The electrochemical energy storage system of claim 1 wherein said carbon electrode has previously been subjected to prolonged contact with nitric acid.
Claim 11
Dependent Claim
54 words
A HCl electrochemical energy storage system comprising a cell having therein an aqueous hydrochloric acid electrolyte in which at least a portion of the HCl is present in disassociated form and at least one ungraphitised carbon electrode and a non-halogen electrode wherein said electrolyte contains an effective disassociating amount of a HCl disassociated agent.
Claim 12
Dependent Claim
54 words
A HCl electrochemical energy storage system comprising a cell having therein an aqueous hydrochloric acid electrolyte in which at least a portion of the HCl is present in disassociated form and at least one ungraphitised carbon electrode and a non-halogen electrode wherein said electrolyte contains an effective disassociating amount of a HCl disassociated agent.
Claim 13
Dependent Claim
14 words
The electrochemical energy storage system of claim 10 wherein said agent is titanium tetrachloride.
Claim 14
Independent Claim
13 words
A method of storing hydrogen which comprises adsorbing the hydrogen in graphitised carbon.
Claim 15
Independent Claim
13 words
A method of storing hydrogen which comprises adsorbing the hydrogen in graphitised carbon.
Claim 16
Dependent Claim
65 words
An HCl electrochemical energy storage system comprising a cell having therein an aqueous hydrochloric acid electrolyte in which at least a portion of the HCl is present in disassociated form and an electrode therein of ungraphitised carbon and a non-halogen electrode, and communicating with said cell, means for storing chlorine comprising ungraphitised carbon, wherein said electrolyte contains a disassociating amount of an HCl disassociating agent.
Claim 17
Dependent Claim
65 words
An HCl electrochemical energy storage system comprising a cell having therein an aqueous hydrochloric acid electrolyte in which at least a portion of the HCl is present in disassociated form and an electrode therein of ungraphitised carbon and a non-halogen electrode, and communicating with said cell, means for storing chlorine comprising ungraphitised carbon, wherein said electrolyte contains a disassociating amount of an HCl disassociating agent.
Claim 18
Dependent Claim
20 words
The electrochemical energy storage system of claim 13 wherein said electrolyte has an HCl concentration of at least about 20%.
Claim 19
Dependent Claim
15 words
The electrochemical energy storage system of claim 14 wherein said disassociating agent is titanium tetrachloride.
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) | 1981-11-06 | 1982-05-08 | 1982-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-11-06 | 1986-05-08 | 1986-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-11-06 | 1990-05-08 | 1990-11-07 | $7700.00 | Window Closed / Lapsed |