Title:
SEPARATOR FOR ELECTROCHEMICAL ELEMENTS, AND ELECTROCHEMICAL ELEMENT
Document Type and Number:
WIPO Patent Application WO/2021/186883
Kind Code:
A1
Abstract:
The present invention provides a separator for electrochemical elements, said separator being formed of beaten regenerated cellulose fibers and being capable of withstanding a common element winding process for an aluminum electrolytic capacitor, while having both denseness and low impedance characteristics. A separator for electrochemical elements, said separator being interposed between a pair of electrodes and being formed of beaten regenerated cellulose fibers, while being capable of holding an electrolyte solution that contains an electrolyte, is configured from a single layer so as to have a thickness of from 10 to 35 μm, a density of from 0.35 to 0.80 g/cm3, a tensile strength of 9.8 N/15 mm or more, an average pore diameter of from 0.05 to 1.00 μm, and a modified tensile strength of 5.9 N/15 mm or more, if the value of a tensile strength as measured by setting the distance between holders of a tensile testing machine to 0.1 mm and the elongation rate of a test piece to 200 mm/min is defined as the modified tensile strength.
Inventors:
TANAKA KOSUKE (JP)
IGAWA ATSUSHI (JP)
IGAWA ATSUSHI (JP)
Application Number:
PCT/JP2021/001851
Publication Date:
September 23, 2021
Filing Date:
January 20, 2021
Export Citation:
Assignee:
NIPPON KODOSHI CORP (JP)
International Classes:
H01G11/52; H01G9/02; H01G9/14; H01M50/409
Domestic Patent References:
| WO2017047699A1 | 2017-03-23 | |||
| WO2017047699A1 | 2017-03-23 |
Foreign References:
| JP2018073856A | 2018-05-10 | |||
| JP2015088703A | 2015-05-07 | |||
| JP2016171166A | 2016-09-23 | |||
| JPH05267103A | 1993-10-15 | |||
| JPH0945586A | 1997-02-14 | |||
| JP2012221566A | 2012-11-12 | |||
| JP2018073856A | 2018-05-10 | |||
| JP2006253728A | 2006-09-21 | |||
| JP2016134425A | 2016-07-25 | |||
| JP2017069229A | 2017-04-06 |
Attorney, Agent or Firm:
SHIN-YU INTERNATIONAL PATENT FIRM (JP)
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