Title:
電気二重層キャパシタ及び電気二重層キャパシタ用非水電解液
Document Type and Number:
Japanese Patent JP5328952
Kind Code:
B2
Abstract:
Provided is an electric double-layer capacitor excellent in long-term reliability, particularly in suppressing its expansion, and a non-aqueous electrolytic solution for the electric double-layer capacitor. The present invention relates to an electric double-layer capacitor, comprising: a positive electrode; a negative electrode; and a non-aqueous electrolytic solution that includes a non-aqueous solvent and an electrolyte salt, the non-aqueous solvent including: a fluorine-containing ether; a fluorine-containing unsaturated compound (I); and a hydroxyl group-containing compound (II), the fluorine-containing ether being represented by the formula (1):
Rf 1 -O-Rf 2 (1)
wherein Rf 1 and Rf 2 are the same as or different from each other, and are each a C1-C10 alkyl group or a C1-C10 fluoro-alkyl group, provided that at least one of Rf 1 and Rf 2 is a fluoro-alkyl group, the hydroxyl group-containing compound (II) being represented by the formula (2):
Rf 1 OH(2)
wherein Rf 1 is as defined above, the total amount of the compounds (I) and (II) being 5,000 ppm or less based on the amount of the fluorine-containing ether.
Inventors:
Kenzo Takahashi
High light sky
Hideo Sakata
Yamamoto Emi
High light sky
Hideo Sakata
Yamamoto Emi
Application Number:
JP2012077707A
Publication Date:
October 30, 2013
Filing Date:
March 29, 2012
Export Citation:
Assignee:
Daikin Industries, Ltd.
International Classes:
H01G11/54; C07C31/38; C07C43/17; H01M10/0569; H01M14/00
Domestic Patent References:
| JP2010135431A |
Foreign References:
| WO2008078626A1 |
Attorney, Agent or Firm:
Atomi International Patent Office