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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/2022/004851
Kind Code:
A1
Abstract:
The present invention provides a separator for aluminum electrolytic capacitors, said separator being formed of natural cellulose fibers and beaten regenerated cellulose fibers, and having excellent tear strength, short-circuit resistance and impedance characteristics. This separator for aluminum electrolytic capacitors is interposed between a positive electrode and a negative electrode of an aluminum electrolytic capacitor, and is formed of from 50% by mass to 90% by mass of natural cellulose fibers and from 50% by mass to 10% by mass of beaten regenerated cellulose fibers. This separator for aluminum electrolytic capacitors is configured to have a relative tear strength of from 20 to 100 mN·m2/g and a short-circuit ratio of 10% or less when applied with 500 V in a separator dielectric breakdown test.

Inventors:
TANAKA KOSUKE (JP)
FUJIMOTO NAOKI (JP)
IGAWA ATSUSHI (JP)
Application Number:
PCT/JP2021/024993
Publication Date:
January 06, 2022
Filing Date:
July 01, 2021
Export Citation:
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Assignee:
NIPPON KODOSHI CORP (JP)
International Classes:
H01G9/02
Domestic Patent References:
WO2017047699A12017-03-23
Foreign References:
JP2018073856A2018-05-10
JP2016134425A2016-07-25
Attorney, Agent or Firm:
SHIN-YU INTERNATIONAL PATENT FIRM (JP)
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