Claims
- 1. Solid electrolyte which comprises a copolymer of at least one ionic compound and of one or more precursors of solvating polyethers, wherein said ionic compound is an ionic compound in which the negative charge is highly delocalized, corresponding to the formula [CF2CF—A]mMm+ in which:Mm+ is a proton or a metal cation having the valency m chosen from the alkali metal, alkaline earth metal, transition metal or rare earth metal ions or an organic onium cation or an organometallic cation 1≦m≦3; A is an anionic group having one of the formulae [—(CF2)n—SO2Z]−, (I) [(O)n′-Φ-SO2Z]− (II) or n and n′ represent 0 or 1; Φ represents a condensed or noncondensed aromatic group, which may or may not carry one or more substituents and which may or may not comprise heteroatoms, or a polyhalogenated group —C6H(4-x-y)FxCly-(1≦x+y≦4); Z represents —O or one of the —NC≡N, —C(C≡N)2, —NSO2R or —C[SO2R]2 groups, Z being other than —O when n or n′ are zero; D represents a single bond, an oxygen atom, a sulfur atom, a —CO— carbonyl group or an —SO2- sulfonyl group; the groups X1 to X4, hereinafter denoted by Xi, represent N, C—C≡N, CR, CCOR or CSO2R, it being understood that, in a pentacyclic group, the Xi groups can be identical or different; R represents Y, YO—, YS—, Y2N, F, RFCgF2g+1 (preferably 0≦q≦12), CF2═CF—, CF2═CFCF2- or CF2═CF—O—, it being understood that, if 2 R substituents are present on the same group, they can be identical or different; Y represents H or a monovalent organic radical having from 1 to 16 carbon atoms chosen from alkyl, alkenyl, oxaalkyl, oxaalkenyl, azaalkyl, azaalkenyl, aryl or alkylaryl radicals or from the radicals obtained from the abovementioned radicals by substitution, in the chains and/or the aromatic part, by heteroatoms, such as halogens, oxygen, nitrogen, sulfur or phosphorus, it being understood that, if sulfur or phosphorus are present, they can optionally be bonded to substituted nitrogen or oxygen atoms, or else Y is a repeat unit of a polymeric backbone.
- 2. Electrolyte according to claim 1, wherein the cation of the ionic compound is an alkali metal cation.
- 3. Primary or secondary battery comprising a negative electrode, a positive electrode and an electrolyte comprising the electrolyte according to claim 1.
- 4. Electrolyte according to claim 1, wherein Mm+ is a metal cation chosen from the group consisting of Li30 , K+, Ca++, Ba++, Cu++, Zn++, Fe++ and Re+++.
- 5. Electrolyte according to claim 1, wherein Mm+ is an ammonium [N(Yj)4]−, an amidinium RC[N(Yj)2]2+, a guanidinium C[N(Yj)2]3+, a pyridinium [C5N(Yj)6]+, an imidazolium C3N2(Yj)5+, an imidazolinium C3N2(Yj)7+, a triazolium C2N3(Yj)4+, a carbonium C5(Yj)5C+, an NO+ (nitrosyl), NO2+, a sulfonium [S(Yj)3]+, a phosphonium [P(Yj)4]+ or an iodonium [I(Yj)2]+, the Yj substituents of the same cation, which can be identical or different, representing one of the substituents indicated for Y.
- 6. Electrolyte according to claim 1, wherein Mm+ is an organometallic cation chosen from metalloceniums; metal cations coordinated by atoms, carried by organic molecules, these cations optionally forming part of a polymeric backbone;or a trialkylsilyl, trialkylgermanyl or trialkylstannyl group.
- 7. Electrolyte according to claim 1, wherein the M+ cation is the repeat unit of a conjugated polymer in cationic oxidized form.
- 8. Electrolyte according to claim 1, wherein the divalent radical Φ is a phenyl C6H4 corresponding to the ortho, meta and para positions of substitution or an aromatic group, a phenyl which is substituted and/or comprising condensed nuclei which may or may not comprise heteroatoms.
- 9. Electrolyte according to claim 1, wherein the ionic compound corresponds to one of the following formulae:{[CF2═CF—SO2NCN]−}mMm+, {[CF2═CF—SO2C(CN)2]−}mMm+, {[CF2═CFCF2—SO2NCN]−}mMm+, {[CF2═CFCF2—SO2C(CN2]−}mMm+, {[CF2═CF-ΦSO2NCN]−}mMm+, {[CF2═CF-ΦSO2C(CN)2]−}mMm+, {[CF2═CF-ΦSO2NSO2CF3]−}mMm+, {[CF2═CF-ΦSO2C(SO2CF3)2]−}mMm+, {[CF2═CF-ΦSO2CH(SO2CF3)]−}mMm+,
- 10. Electrolyte according to claim 1, wherein the ionic compound corresponds to one of the following formulae:{[(CF2═CF—SO2)2N]−}mMm+, {[(CF2═CFCF2—SO2)2]−}mMm+, {[(CF2═CFSO2)2CH]−}mMm+, {[(CF2═CFCF2—SO2)2CH]−}mMm+, {[(CF2═CF—SO2)3C]−}mMm+, {[(CF2═CFCF2—SO2)3C]−}mMm+, {[(CF2═CF-ΦSO2)2N]−}mMm+, {[(CF2═CF—O-ΦSO2)2N]−}mMm+, [{(CF2═CF-ΦSO2)2CH]−}mMm+, {[(CF2═CP—O-ΦSO2)2CH]−}mMm+, {[(CF2═CF-ΦSO2)3C]−}mMm+, {[(CF2CF—O-ΦSO2)2CH]−}mMm+, {[(CF2═CF-ΦSO2)3C]−}mMm+, {[(CF2CF—O-ΦSO2)3C]−}mMm+, [{(CF2═CF—)2C6H3SO3)2]−}mMm+, {[3,5-(CF2═CF—)2C6H3SO2NSO2CF3]−}mMm+,
- 11. System for modulating light comprising an electrolyte and electrodes, wherein the electrolyte comprises an electrolyte according to claim 1.
- 12. Supercapacitor composed of an electrolyte and electrodes, wherein the electrolyte comprises an electrolyte according to claim 1.
- 13. Electrolyte according to claim 6, wherein the metal cations are coordinated by atoms selected from the group consisting of O, S, Se, N, P and As.
Priority Claims (1)
Number |
Date |
Country |
Kind |
2212974 |
Jul 1997 |
CA |
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Parent Case Info
This application is a divisional of U.S. application Ser. No. 09/898,380, filed on Jul. 5, 2001, and now U.S. Pat. No. 6,426,397 which is a divisional of U.S. application Ser. No. 09/269,268, filed on Mar. 25, 1999, and now U.S. Pat. No. 6,288,187 which was a national stage filing under 35 U.S.C. §371 of International Application No. PCT/FR98/01664 filed on Jul. 27, 1998, which International Application was not published by the International Bureau in English on Feb. 4, 1999.
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Date |
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5463005 |
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