Solvents and novel electrolytic compositions having a large range of stability and high conductivity
AssigneesHydro-Quebec, ACEP Inc., Centre National de la Rechecch Scientifique, 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.
Claims11
An aprotic polar compound having solvent properties, and of the general 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 or C1-18 oxaalkylene;
- R3 to R4 are the same or different and are C1-18 alkyl or C1-18 oxaalkyl;
- R7 is RF, RFCH2O—, (RF)2CHO, or (RFCH2)2N—;
- RF is a fluorine atom, C1-4 alkyl, C1-4 oxaalkyl C1-4 azaalkyl, wherein C1-4 alkyl, C1-4 oxaalkyl and C1-4 azaalkyl are each essentially fluorinated.
Dependencies are inferred from the claim text.