US4502934A
Expired / Lapsed
US
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Electrode comprising an electrochrome polymer film and a display device using such an electrode
Assignee: Thales SA
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Filing: 1983-05-31
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Granted: 1985-03-05
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Expires: 2003-05-31
Abstract
Abstract The invention relates to the elaboration of an electrode comprising an electrochrome polymer. The invention provides an electrode coated with a polymer film obtained by electrochemical polymerization of a monomer M, said polymer corresponding to the general formula (M + X - y)n where X - represents an anion coming from the electrolyte used for the polymerization, the monomer being either a substituted aromatic heterocycle with 5 links containing a single hetero-atom, or an indole substituted on the phenyl nucleus, the substitutions being possibly groups of the alkyl, alkoxyl, hydroxyl, aryl, substituted aryl, halogene, trihalogenomethyl, cyano, amino or dialkylamino type.
Inventors
- 👤 Maryse Gazard
- 👤 G/e/ rard Tourillon
- 👤 Francis Garnier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:59
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/36; H01M4/60; C; C08; C08G; C08G61/00; C08G61/12; C08G61/122; C08G61/123; C09; C09K; C09K9/00; C09K9/02; G; G02; G02F; G02F1/00; G02F1/01; G02F1/15; G02F1/1514; G02F1/1516; G02F1/15165; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
125 words
An electrode comprising a conducting support coated with a polymer film obtained by electrochemical polymerization of at least one monomer M, said polymer corresponding to the general formula (M + X - y)n; X - representing an ion coming from the electrolyte used during said polymerization, y the anion proportion with respect to a mole of monomer and n the degree of polymerization, said monomer having one aromatic heterocycle containing a single hetero-atom said monomer being substituted by at least one substituent, wherein said monomer corresponds to the chemical formula: ##STR4## with: X=S or O, wherein R 1 and R 2 are independently hydrogen alkyl, alkoxy, hydroxyl, aryl, substituted aryl, halogen, trihalogenomethyl, cyano, or dialkylamino wherein R 1 and R 2 are not both H.
Claim 2
Dependent Claim
125 words
An electrode comprising a conducting support coated with a polymer film obtained by electrochemical polymerization of at least one monomer M, said polymer corresponding to the general formula (M + X - y)n; X - representing an ion coming from the electrolyte used during said polymerization, y the anion proportion with respect to a mole of monomer and n the degree of polymerization, said monomer having one aromatic heterocycle containing a single hetero-atom said monomer being substituted by at least one substituent, wherein said monomer corresponds to the chemical formula: ##STR4## with: X=S or O, wherein R 1 and R 2 are independently hydrogen alkyl, alkoxy, hydroxyl, aryl, substituted aryl, halogen, trihalogenomethyl, cyano, or dialkylamino wherein R 1 and R 2 are not both H.
Claim 3
Dependent Claim
81 words
The electrode as claimed in claim 1, wherein said electrolyte is a conducting salt of the A + X - type in which the cation A + is an alkaline element, the N(C 4 H 9 ) 4 + ion or the N(C 2 H 5 ) 4 + ion and in which the anion X - is an anion such as ClO 4 - , BF 4 - , PF 6 - , I - , Br - or: ##STR5##
Claim 4
Dependent Claim
28 words
The electrode as claimed in claim 1, wherein said electrolyte used during said polymerization is in solution in an organic solvent such as acetonitrile, tetrahydrofuran, or methylene chloride.
Claim 5
Dependent Claim
15 words
The electrode as claimed in claim 1, wherein said conducting support is a metal plate.
Claim 6
Dependent Claim
15 words
The electrode as claimed in claim 4, wherein said metal plate is made from platinum.
Claim 7
Dependent Claim
23 words
The electrode as claimed in claim 1, wherein said conducting support is formed by a non conducting plate coated with a conducting layer.
Claim 8
Dependent Claim
13 words
The electrode as claimed in claim 6, wherein said conducting support is transparent.
Claim 9
Dependent Claim
17 words
The electrode as claimed in claim 1, wherein the polymer is obtained from two or more monomers.
Claim 10
Dependent Claim
19 words
An electrochemical cell, wherein one of the electrodes is formed by an electrode obtained in accordance with claim 1.
Claim 11
Dependent Claim
18 words
The electrochemical cell as claimed in claim 9, serving for accumulating and restoring energy by an oxido-reduction phenomenon.
Claim 12
Dependent Claim
14 words
An electrochemical display device using an electrochemical cell such as claimed in claim 9.
Claim 13
Dependent Claim
27 words
The display device as claimed in claim 11, wherein the color of said display may be modified by changing the nature of the electrolyte of said device.
Claim 14
Dependent Claim
147 words
An electrode comprising a conducting support coated with a polymer film obtained by electrochemical polymerization of at least one monomer M, said polymer corresponding to the general formula (M + X - y)n; X - representing an ion coming from the electrolyte used during said polymerization, y the anion proportion with respect to a mole of monomer and n the degree of polymerization, said monomer having one aromatic heterocycle containing a single hetero-atom, said monomer being substituted by at least one substituent, wherein said monomer is an indole substituted on the phenyl nucleus by at least one of the compound R 3 , R 4 , R 5 , R 6 , of the general formula: ##STR6## R 3 , R 4 , R 5 and R 6 being either hydrogen or a substituted such as alkyl, alkoxy, hydroxyl, aryl, substituted aryl, halogen, trihalogenomethyl, cyano, or amino.
Claim 15
Dependent Claim
147 words
An electrode comprising a conducting support coated with a polymer film obtained by electrochemical polymerization of at least one monomer M, said polymer corresponding to the general formula (M + X - y)n; X - representing an ion coming from the electrolyte used during said polymerization, y the anion proportion with respect to a mole of monomer and n the degree of polymerization, said monomer having one aromatic heterocycle containing a single hetero-atom, said monomer being substituted by at least one substituent, wherein said monomer is an indole substituted on the phenyl nucleus by at least one of the compound R 3 , R 4 , R 5 , R 6 , of the general formula: ##STR6## R 3 , R 4 , R 5 and R 6 being either hydrogen or a substituted such as alkyl, alkoxy, hydroxyl, aryl, substituted aryl, halogen, trihalogenomethyl, cyano, or amino.
Claim 16
Dependent Claim
81 words
The electrode as claimed in claim 13, wherein said electrolyte is a conducting salt of the A + X - type in which the cation A + is an alkaline element, the N(C 4 H 9 ) 4 + ion or the N(C 2 H 5 ) 4 + ion and in which the anion X - is an anion such as ClO 4 - , BF 4 - , PF 6 - , I - , Br - or: ##STR7##
Claim 17
Dependent Claim
28 words
The electrode as claimed in claim 13, wherein said electrolyte used during said polymerization is in solution in an organic solvent such as acetonitrile, tetrahydrofuran, or methylene chloride.
Claim 18
Dependent Claim
15 words
The electrode as claimed in claim 13, wherein said conducting support is a metal plate.
Claim 19
Dependent Claim
15 words
The electrode as claimed in claim 16, wherein said metal plate is made from platinum.
Claim 20
Dependent Claim
23 words
The electrode as claimed in claim 13, wherein said conducting support is formed by a non conducting plate coated with a conducting layer.
Claim 21
Dependent Claim
13 words
The electrode as claimed in claim 18, wherein said conducting support is transparent.
Claim 22
Dependent Claim
17 words
The electrode as claimed in claim 13, wherein the polymer is obtained from two or more monomers.
Claim 23
Dependent Claim
19 words
An electrochemical cell, wherein one of the electrodes is formed by an electrode obtained in accordance with claim 13.
Claim 24
Dependent Claim
18 words
The electrochemical cell as claimed in claim 21, serving for accumulating and restoring energy by an oxido-reduction phenomenon.
Claim 25
Dependent Claim
14 words
An electrochemical display device using an electrochemical cell used as claimed in claim 21.
Claim 26
Dependent Claim
27 words
The display device as claimed in claim 23, wherein the color of said display may be modified by changing the nature of the electrolyte of said device.
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) | 1988-03-04 | 1988-09-03 | 1989-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-03-04 | 1992-09-03 | 1993-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-03-04 | 1996-09-03 | 1997-03-05 | $7700.00 | Window Closed / Lapsed |