Title:
ELECTROLYTIC CAPACITOR
Document Type and Number:
WIPO Patent Application WO/2019/065951
Kind Code:
A1
Abstract:
An electrolytic capacitor provided with a capacitor element and an electrolytic solution, wherein: the capacitor element is provided with a positive electrode body having a chemical conversion coating, and a solid electrolyte in contact with the chemical conversion coating; the electrolytic solution includes a solvent and a solute; the solvent includes at least one compound selected from the group consisting of lactone compounds, glycol compounds, and sulfone compounds; the solute includes at least one component from among benzene dicarboxylic acid and derivatives thereof as a first acid component, and at least one component from among amines and amidines as a base component; the concentration of the solute in the electrolytic solution is 15-40% by mass; and the ratio V/Vw between the chemical conversion voltage V volts applied to the positive electrode body to form the chemical conversion coating and the rated voltage Vw volts of the electrolytic capacitor is 1.7 or less.
Inventors:
SAITO KAZUYO
TSUBAKI YUICHIRO
AOYAMA TATSUJI
TSUBAKI YUICHIRO
AOYAMA TATSUJI
Application Number:
PCT/JP2018/036209
Publication Date:
April 04, 2019
Filing Date:
September 28, 2018
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
H01G9/035; H01G9/028; H01G9/07; H01G9/145; H01G9/15
Domestic Patent References:
| WO2011099261A1 | 2011-08-18 |
Foreign References:
| JP2008010657A | 2008-01-17 | |||
| JP2007080888A | 2007-03-29 | |||
| JP2017069537A | 2017-04-06 | |||
| JP2006108650A | 2006-04-20 | |||
| JP2005286251A | 2005-10-13 | |||
| JP2005327945A | 2005-11-24 |
Attorney, Agent or Firm:
KAMATA Kenji et al. (JP)
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