Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
SEPARATOR FOR ELECTROCHEMICAL ELEMENTS, AND ELECTROCHEMICAL ELEMENT COMPRISING SAME
Document Type and Number:
WIPO Patent Application WO/2018/074442
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing a separator for electrochemical elements, wherein the occurrence of fluff on a sheet surface of the separator for electrochemical elements is suppressed, and the internal short circuit failure rate is low. The present invention relates to a separator for electrochemical elements, which contains fibrillated solvent-spun cellulose fibers and synthetic fibers, wherein the synthetic fibers include 5-40 wt% of sheath-core type composite fibers having fiber diameters of 6.0 μm or less, said sheath-core type composite fibers consisting of a core component made of a resin having a melting point of 160°C or higher, and a sheath component made of polyethylene.

Inventors:
OOYAMA KEISUKE (JP)
MASUDA TAKAO (JP)
Application Number:
PCT/JP2017/037458
Publication Date:
April 26, 2018
Filing Date:
October 17, 2017
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
MITSUBISHI PAPER MILLS LTD (JP)
International Classes:
H01G9/02; H01G11/52; H01M50/414; H01M50/417; H01M50/42; H01M50/423; H01M50/429; H01M50/494; D01F8/02; D01F8/06
Domestic Patent References:
WO2012008559A12012-01-19
WO2011046066A12011-04-21
Foreign References:
JP2014026877A2014-02-06
JP2008227296A2008-09-25
JP2011228320A2011-11-10
Attorney, Agent or Firm:
EIKOH PATENT FIRM, P.C. (JP)
Download PDF: