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EP0210023A2
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Electrochemical cell with high capacity polyaniline electrodes
Assignee: University Patents Inc
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Filing: 1986-07-10
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Granted: —
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Expires: 2006-07-10
Abstract
Abstract Electrochemical electrodes are provided having improved capacity and efficiency. In accordance with preferred embodiments polyaniline species wherein oxidation and hydrogenation levels are carefully controlled are formulated into such electrodes and into batteries and fuel cells.
Inventors
- 👤 Alan G. Macdiarmid
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-01 13:01
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/86; H01M4/90; H01M4/9008; C; C08; C08G; C08G73/00; C08G73/02; C08G73/026; C08G73/0266; H01M4/02; H01M4/36; H01M4/60; Y; Y02; Y02E; Y02E60/00; Y02E60/10; Y02E60/30; Y02E60/50
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
50 words
An electrochemical cell comprising anode active means, cathode active means and an aprotic electrolyte characterised in that at least one of said anode and cathode means comprises a polyanaline species wherein each nitrogen of the polymer chain is associated with at least one, but not more than two, hydrogen atoms.
Claim 2
Dependent Claim
50 words
An electrochemical cell comprising anode active means, cathode active means and an aprotic electrolyte characterised in that at least one of said anode and cathode means comprises a polyanaline species wherein each nitrogen of the polymer chain is associated with at least one, but not more than two, hydrogen atoms.
Claim 3
Dependent Claim
23 words
The cell of Claim 1 characterised in that each nitrogen of the polymer chain is associated with one, but only one, hydrogen atom.
Claim 4
Dependent Claim
17 words
The cell of claim 1 or 2 characterised in that said polyaniline species comprises the cathode means.
Claim 5
Dependent Claim
19 words
The cell of claim 3 characterised in that said anode active means comprises an alkalai or alkaline earth metal.
Claim 6
Dependent Claim
20 words
The cell of any preceding claim characterised in that said polyaniline species comprises subunits selected from lA and 25 subunits.
Claim 7
Dependent Claim
33 words
The cell of any of claims 1 to 4 characterised in that said polyaniline species is reversibly oxidizable to the formula where A- is a counterion, and is reversibly reducible to the formula
Claim 8
Dependent Claim
17 words
The cell of any preceding claim adapted to function as a secondary battery or a fuel cell.
Claim 9
Dependent Claim
24 words
An electrochemical electrode characterised by a polyaniline species wherein each nitrogen of the polymer chain is associated with one, but only one, hydrogen atom.
Claim 10
Dependent Claim
24 words
An electrochemical electrode characterised by a polyaniline species wherein each nitrogen of the polymer chain is associated with one, but only one, hydrogen atom.
Claim 11
Dependent Claim
30 words
The electrode of claim 8, characterised in that it is cyclable between oxidized and reduced forms wherein the oxidized form has the formula and the reduced form has the formula
Claim 12
Dependent Claim
16 words
The electrode of claim 8 characterised in that it is in contact with an aprotic electrolyte.
Claim 13
Independent Claim
36 words
A method of reversible energy storage characterised by providing an electrode in an aprotic electrolyte and cyclically oxidizing and reducing said electrode between oxidized formula and reduced formula where A- is a counterion from the electrolyte.
Claim 14
Independent Claim
36 words
A method of reversible energy storage characterised by providing an electrode in an aprotic electrolyte and cyclically oxidizing and reducing said electrode between oxidized formula and reduced formula where A- is a counterion from the electrolyte.
References Cited (Backward Citations)
No citation records indexed.
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