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EP0167321A1
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Reversible electrochemical cell using conjugated polymer as electrode-active material
Assignee: Sumitomo Chemical Co Ltd
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Filing: 1985-06-17
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Granted: —
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Expires: 2005-06-17
Abstract
Abstract A reversible electrochemical cell uses as electrode-active material a polymer of formula: (R 1 and R 2 hydrogen, alkyl or alkoxy, m is 2 or more). The polymer is obtained by first forming a polymeric sulphonium salt of the general formula: (R 1 and R 2 as defined, R 3 and R 4 C 1-20 hydrocarbon, X a counter ion, and n ≥ m ≥ 2) and subjecting the polymeric sulphonium salt to decomposition treatment in an inert atmosphere.
Inventors
- 👤 Satoshi Taguchi
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-26 01:46
CPC Classifications
H; H01; H01B; H01B1/00; H01B1/06; H01B1/12; H01B1/124; H01B1/128; C; C08; C08G; C08G61/00; C08G61/02; G; G02; G02F; G02F1/00; G02F1/01; G02F1/15; G02F1/1514; G02F1/1516; G02F1/15165; H01M; H01M4/00; H01M4/02; H01M4/36; H01M4/60; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
106 words
A reversible electrochemical cell u electrode-active material a polyphenylene polymer comprising a conjugated polymeric str the formula: (wherein R 1 and R 2 represent independently an alkyl group or an alkoxy group, and m is a: of 2 or more) obtained by first forming a polymeric sulphor having the structure represented by the general (wherein R 1 and R 2 are as defined above, R 4 represent independently a hydrocarbon grou 1 to 20 carbon atoms, X is a counter ion, defined by the relationship n > m > 2), and then subjecting the polymeric sulphonium decomposition treatment in an inert atmosphere, further comprising an electrolyte.
Claim 2
Dependent Claim
106 words
A reversible electrochemical cell u electrode-active material a polyphenylene polymer comprising a conjugated polymeric str the formula: (wherein R 1 and R 2 represent independently an alkyl group or an alkoxy group, and m is a: of 2 or more) obtained by first forming a polymeric sulphor having the structure represented by the general (wherein R 1 and R 2 are as defined above, R 4 represent independently a hydrocarbon grou 1 to 20 carbon atoms, X is a counter ion, defined by the relationship n > m > 2), and then subjecting the polymeric sulphonium decomposition treatment in an inert atmosphere, further comprising an electrolyte.
Claim 3
Dependent Claim
19 words
A reversible electrochemical cell according to Claim 1, wherein the conjugated polymeric structure is a poly-p-phenylenevinylene, poly-2,5-dialkyl-p-phenylenevinylene or poly-2,5-dialkoxy-p-phenylenevinylene.
Claim 4
Dependent Claim
22 words
3 . A reversible electrochemical cell according to Claim 2, wherein the alkyl or alkoxy substituents have 1 to 5 carbon atoms.
Claim 5
Dependent Claim
22 words
A reversible electrochemical cell according to Claim 2, wherein the alkyl or alkoxy substituent is a methyl, ethyl, methoxy or ethoxy group.
Claim 6
Dependent Claim
31 words
A reversible electrochemical cell according to any preceding Claim, wherein the cell is a secondary cell using the polypheylene vinylene polymer as electrode-active material for at least one of the electrodes.
Claim 7
Dependent Claim
29 words
A reversible electrochmeical cell according to any of Claims 1 to 4, wherein the cell is an electrochromic display element using the polyphenylene vinylene polymer as a colour former.
Claim 8
Dependent Claim
23 words
A reversible electrochemical cell according to any preceding claim, wherein the polyphenylene vinylene polymer has a shape imparted to the polymeric sulphonium salt.
Claim 9
Dependent Claim
20 words
A reversible electrochemical cell according to preceding claim, wherein the polyphenylene vin polymer is in the shape of a film.
Claim 10
Dependent Claim
18 words
A reversible electrochemical cell according to preceding claim, wherein the polyphenylene viny polymer is applied to a substrate.
Claim 11
Dependent Claim
43 words
A process for fabricating a rever electrochemical cell with a polyphenylene viny polymer as electrode-active material, wherein a des shape is imparted to a polymeric precursor, prefera polymeric sulphonium salt. and the polymeric prect is converted to a poly-para-phenylene vinylene retai the shape.
Claim 12
Dependent Claim
43 words
A process for fabricating a rever electrochemical cell with a polyphenylene viny polymer as electrode-active material, wherein a des shape is imparted to a polymeric precursor, prefera polymeric sulphonium salt. and the polymeric prect is converted to a poly-para-phenylene vinylene retai the shape.
References Cited (Backward Citations)
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