Non-aqueous solvent mixture and non-aqueous electrolytic solution containing such mixture
Assignee3M Innovative Properties Company
InventorsHaruki Segawa, Hideto Yanome
Life of this patent
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Abstract
A non-aqueous mixture solvent for a non-aqueous electrolytic solution to be used for electrochemical energy devices, which contains an aprotic solvent, and a fluorinated ketone of the formula: (wherein Rf1 and Rf2 each independently represents a fluorinated aliphatic group, or Rf1 and Rf2 together form a cyclic group, Q represents a fluorinated or non-fluorinated alkylene group or a bond, and n represents 0 or 1), and an electrolytic solution containing the mixture solvent.
Claims7
A non-aqueous mixture solvent for a non-aqueous electrolytic solution to be used for electrochemical energy devices, which contains an aprotic solvent selected from the group consisting of ethylene carbonate, propylene carbonate, butylene, carbonate acid ester represented by a general formula R1OCOOR2 (wherein R1 and R2 each represents same or different alkyl group having 1 to 4 carbon atoms), γ-butylolactone, 1,2-dimethoxyethane, diglyme, triglyme, tetraglyme, tetrahydrofuran, alkyl substituted tetrahydrofuran, 1,3-dioxolane, and alkyl substituted 1,3-dioxolane, and a fluorinated ketone of the formula:
- wherein Rf1 and Rf2 each independently represents a fluorinated aliphatic group, or Rf1 and R f2 together form a cyclic group, Q represents a fluorinated or non-fluorinated alkylene group or a bond, and n represents 0 or 1.
A non-aqueous mixture solvent for a non-aciueous electrolytic solution to be used for electrochemical energy devices, which contains an aprotic solvent, and a fluorinated ketone of the formula:
- wherein Rf1 and Rf2 each independently represents a fluorinated aliphatic group, or Rf1 and Rf1 together form a cyclic group, Q represents a fluorinated or non-fluorinated alkylene group or a bond, and n represents 0 or 1, wherein said fluorinated ketone is pentafluoroethyl heptafluoropropyl ketone or bisheptafluoropropyl ketone.
A non-aqueous electrolytic solution for electrochemical devices, wherein an ion dissociative carrier electrolyte is dissolved in a non-aqueous mixture solvent for a non-aqueous electrolytic solution to be used for electrochemical energy devices, which contains an aprotic solvent, and a fluorinated ketone of the formula:
- wherein Rf1 and Rf2 each independently represents a fluorinated aliphatic group, or Rf1 and Rf2 together form a cyclic group, Q represents a fluorinated or non-fluorinated alkylene group or a bond, and n represents 0 or 1.
Dependencies are inferred from the claim text.