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Patent Searching and Data


Title:
SEPARATOR FOR ALUMINUM ELECTROLYTIC CAPACITORS, AND ALUMINUM ELECTROLYTIC CAPACITOR
Document Type and Number:
WIPO Patent Application WO/2019/188659
Kind Code:
A1
Abstract:
A separator for aluminum electrolytic capacitors, which is interposed between a pair of electrodes, and which has a porosity of 65-85%, an average pore diameter of 0.5-25.0 μm and a Clark stiffness of 1-10 cm3/100. In addition, this separator is composed of a nonwoven fabric which has these features, while containing polyamide fibers. By using this separator in a solid electrolytic capacitor or in a hybrid electrolytic capacitor, the initial ESR and short circuit failure ratio are able to be reduced, while enabling improvement of reliability that is good enough for use in a harsh environment over a long period of time. In addition, this separator is able to be used in an aluminum electrolytic capacitor which uses a conductive polymer as a negative electrode material.

Inventors:
OCHI Takafumi (648 Hirooka-kami, Haruno-cho Kochi-sh, Kochi 95, 〒7810395, JP)
ISHIGAYASUMI Masaki (648 Hirooka-kami, Haruno-cho Kochi-sh, Kochi 95, 〒7810395, JP)
KUMAOKA Hironori (648 Hirooka-kami, Haruno-cho Kochi-sh, Kochi 95, 〒7810395, JP)
Application Number:
JP2019/011699
Publication Date:
October 03, 2019
Filing Date:
March 20, 2019
Export Citation:
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Assignee:
NIPPON KODOSHI CORPORATION (648 Hirooka-kami, Haruno-cho Kochi-sh, Kochi 95, 〒7810395, JP)
International Classes:
H01G9/02; H01G9/145; H01G9/15
Foreign References:
JP2010277800A2010-12-09
JP2011228320A2011-11-10
JP2014072361A2014-04-21
JPH0371618A1991-03-27
JP2017162840A2017-09-14
Attorney, Agent or Firm:
MARUYAMA Yukio (3rd Floor Tanaka Scale Building, 2-6-7 Kandamisaki-cho, Chiyoda-k, Tokyo 61, 〒1010061, JP)
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