Solvents and novel electrolytic compositions having a large range of stability and high conductivity
AssigneesACEP Inc., Centre National De La Recherche Scient., Universite de Montreal
InventorsChristophe Michot, Dany Brouillette, Daniel Baril, Jean-Yves Bergeron, Michel Armand
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Abstract
The present invention is concerned with novel polar solvents and novel electrolytic compositions comprising such solvents, and having a high range of stability, as required for applications in the field of electrochemistry. The present solvents have a highly polar amide function, and preferably combine with a salt soluble in the solvent and having an anion with a delocalized charge, and at least one polymer, to form an electrolytic composition.
Claims20
An aprotic polar compound having solvent properties and having the formula:
- R1R2NX(Z)R7
- wherein
- X=C or SO;
- Z=O, NSO2NR3R4 or NCN;
- R1 and R2 are the same or different and are C1-18 alkyl, C1-18 oxaalkyl, C1-18 alkylene, C1-18 oxaalkylene;
- R7 is RF, RFCH2O—, (RF)2CHO—, or (RFCH2)2N— or R5R6N—;
- R3 to R6 are the same or different and are C1-18 alkyl or C1-18 oxaalkyl;
- RF is C1-4 alkyl, C1-4 oxaalkyl, C1-4 azaalkyl, wherein C1-4 alkyl, C1-4 oxaalkyl, C1-4 azaalkyl are each perfluorinated,
- with the proviso that if Z=O then R7 is not NR5R6.
An electrolytic composition, comprising:
- at least one aprotic polar compound having solvent properties and having the formula:
- R1R2NX(Z)R7
- wherein
- X=C or SO;
- Z=O, NSO2NR3R4 or NCN;
- R1 and R2 are the same or different and are C1-18 alkyl, C1-18 oxaalkyl, C1-18 alkylene, C1-18 oxaalkylene;
- R7 is RF, RFCH2O—, (RF)2CHO—, or (RFCH2)2N— or NR5R6;
- R3 to R6 are the same or different and are C1-18 alkyl or C1-18 oxaalkyl;
- RF is a fluorine atom, C1-4 alkyl, C1-4 oxaalkyl, or C1-4 azaalkyl, wherein C1-4 alkyl, C1-4 oxaalkyl, C1-4 azaalkyl are each perfluorinated,
- with the proviso that if Z=O then R is not NR5R6,
- and a salt soluble in said polar compound having an anion with a delocalized charge.
Dependencies are inferred from the claim text.