3m Innovative Properties Company

Haruki Segawa

Richard M Flynn

Michael G Costello

Hideto Yanome

An electrolyte composition includes (a) a solvent composition including at least one hydrofluoroether compound, the hydrofluoroether compound including two terminal fluoroalkyl groups and an intervening substituted or unsubstituted oxymethylene group, each of the fluoroalkyl groups including only one hydrogen atom and, optionally, at least one catenated (that is, in-chain) heteroatom, with the proviso that, when the oxymethylene group is unsubstituted, at least one of the terminal fluoroalkyl groups is branched and/or includes at least one catenated heteroatom; and (b) at least one electrolyte salt.

Electrolyte composition

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 Rand Reach independently represents a fluorinated aliphatic group, or Rand Rtogether 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.

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Sagimhara, Japan

Haruki Segawa