Title:
COMPOSITE FILM AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2017/026445
Kind Code:
A1
Abstract:
The present invention provides a composite film suitable for use as a filter agent or a separator for secondary batteries that is lightweight and has sufficient mechanical strength in addition to good ion conductivity. This composite film includes an epoxy resin porous cured body having a three-dimensional network skeleton structure and communicating voids, and a cellulose fiber sheet. This method for producing a composite film comprises: impregnating a cellulose fiber sheet with an epoxy resin composition including an epoxy resin, a curing agent, and a porogen; heating the resulting impregnated material and curing the epoxy resin; and removing the porogen from the resulting cured product.
Inventors:
KAGATA HIDEKI (JP)
ODA TOSHIKAZU (JP)
ISHIZUKA NORIO (JP)
TSUJII YOSHINOBU (JP)
SAKAKIBARA KEITA (JP)
SATO TAKAYA (JP)
ODA TOSHIKAZU (JP)
ISHIZUKA NORIO (JP)
TSUJII YOSHINOBU (JP)
SAKAKIBARA KEITA (JP)
SATO TAKAYA (JP)
Application Number:
PCT/JP2016/073299
Publication Date:
February 16, 2017
Filing Date:
August 08, 2016
Export Citation:
Assignee:
EMAUS KYOTO INC (JP)
UNIV KYOTO (JP)
KOSEN NAT INST OF TECH (JP)
UNIV KYOTO (JP)
KOSEN NAT INST OF TECH (JP)
International Classes:
C08J9/26; C08J5/04; H01M50/409; H01M50/443; H01M50/489; H01M50/491
Domestic Patent References:
| WO2014207308A1 | 2014-12-31 |
Foreign References:
| JP2008013672A | 2008-01-24 |
Attorney, Agent or Firm:
SUGIMOTO Katsunori (JP)
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