Ion-polymer gel electrolyte and its precursor composition

C - Chemistry – Metallurgy – 08 – K

Patent

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C08K 13/00 (2006.01) H01G 9/022 (2006.01) H01M 6/16 (2006.01) H01M 8/08 (2006.01) H01M 10/40 (2006.01)

Patent

CA 2512326

A precursor composition capable to form a solid-state electrolyte having good ion conductivity and high heat-resistance, by simple curing procedure, comprising; (A) a polymerizable ion pair compound represented by formula I, (B) a cross-linker having two or more unsaturated groups co-polymerizable with the polymerizable ion pair compound (A), and (C) non-polymerizable ion pair compound. Each of R1, R2, R3, R4, R5 and R6 represents hydrogen atom, alkyl or aryl group having 1-12 carbon atoms; and each of R7 and R8 represents alkyl or aryl group having 1-12 carbon atoms. X designates either of halogen atom, AlCl4-, PF6-, BF4-, bis(oxalato)borate anion, R f1SO3-, (NC)2N-, (R f2y)2N-, (R f2Y)3C-, and (R f2Y)2C-Q, where R f1 designates perfluoro alkyl or aryl group having 1-8 carbon atoms; each R f2 designates fluorine atom, perfluoro alkyl or aryl group having 1-8 carbon atoms; Y designates -SO2- or -PO-R f2; and Q designates -H or -CO-R f2. (see formula I)

Précurseur capable de former un électrolyte à l'état solide possédant une bonne conductivité ionique et une résistance élevée à la chaleur par un simple procédé de polymérisation, comportant (A) une paire d'ions polymérisable de formule I, (B) un agent de réticulation comptant au moins deux groupements insaturés copolymérisables avec la parie d'ions polymérisable (A), et (C) une paie d'ions non polymérisable. R1, R2, R3, R4, R5 et R6 représentent chacun un atome d'hydrogène, un alkyle ou un aryle comptant 1 à 12 carbones; R7 et R8 représentent chacun un alkyle ou un aryle comptant 1 à 12 carbones. X correspond à un atome d'halogène, un AlCl4-, un PF6-, un BF4-, un anion bis(oxalato)borate, un R f1SO3-, un (NC)2N-, un (R f2y)2N-, un (R f2Y)3C- ou à un (R f2Y)2C-Q, où R f1 désigne un groupement perfluoroalkyle ou aryle comptant 1 à 8 carbones; chaque R f2 désigne un atome de fluor ou un groupement perfluoroalkyle ou aryle comptant 1 à 8 carbones; Y correspond à un -SO2- ou à un -PO-R f2; Q est un -H ou un -CO-R f2 (voir la formule I).

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