Electrolyte for an energy storage device

Details Electrolyte for an energy storage device Electrolyte for an energy storage device

2003-03-19

2008-01-01

Koslow, C. Melissa (Department: 1755)

Compositions: coating or plastic

Materials or ingredients

Vehicles or solvents

C252S364000

Reexamination Certificate

active

07314514

ABSTRACT:
The invention relates to energy storage devices such as capacitors and supercapacitors and non-aqueous solvent systems suitable for use as an electrolyte solvent therein. Devices incorporating the solvent system are suitable for use in, for example, wireless devices or automotive applications at high temperatures with minimal, if any mass loss. The solvent system has at least one low boiling component (preferably a nitrile, eg acetonitrile) at least one high boiling component compatible with said low boiling component (preferably lactones, eg γ-butyrolactone and/or organic carbonates eg ethylene carbonate or propylene carbonate); and wherein the components are selected in an amount such that said non-aqueous solvent system does not boil at the boiling point of the low viscosity solvent alone but has a boiling point greater than said low viscosity solvent alone.

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