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1. (WO2017201173) NONAQUEOUS ELECTROLYTE FOR AN ULTRACAPACITOR

Pub. No.:    WO/2017/201173    International Application No.:    PCT/US2017/033126
Publication Date: Fri Nov 24 00:59:59 CET 2017 International Filing Date: Thu May 18 01:59:59 CEST 2017
IPC: H01G 11/56
H01G 11/36
H01G 11/52
Applicants: AVX CORPORATION
Inventors: KNOPSNYDER, Jonathan Robert
RAWAL, Bharat
Title: NONAQUEOUS ELECTROLYTE FOR AN ULTRACAPACITOR
Abstract:
An ultracapacitor that contains a first electrode, second electrode, separator, nonaqueous electrolyte, and housing is provided. The first electrode comprises a first current collector electrically coupled to a first carbonaceous coating and the second electrode comprises a second current collector electrically coupled to a second carbonaceous coating. The nonaqueous electrolyte is in ionic contact with the first electrode and the second electrode, wherein the nonaqueous electrolyte contains an ionic liquid that is dissolved in a nonaqueous solvent at a concentration of about 1.0 mole per liter or more. The nonaqueous solvent has a boiling temperature of about 150°C or more.