Title:
NON-WOVEN FABRIC COMPRISING CELLULOSE FIBERS, AND SEPARATOR FOR ELECTRICAL STORAGE ELEMENT
Document Type and Number:
WIPO Patent Application WO/2012/017953
Kind Code:
A1
Abstract:
Cellulose fibers having an average fiber diameter of 0.1-20 μm and cellulose nanofibers having an average fiber diameter of less than 100 nm are made into a sheet form, thereby preparing a non-woven fabric. The non-woven fabric may have a thickness of 20 μm or less. The content ratio of the cellulose nanofibers may be about 0.01-15 parts by weight relative to 100 parts by weight of the cellulose fibers. This non-woven fabric may contain substantially no synthetic resin, and can have excellent mechanical strength even when the non-woven fabric does not contain any sheet force increasing agent such as a polyacrylamide or has a small thickness. Further, this non-woven fabric has excellent gas permeability, and therefore can be used as a separator or a filter for an electrical storage element.
Inventors:
OMURA MASAYA (JP)
Application Number:
PCT/JP2011/067486
Publication Date:
February 09, 2012
Filing Date:
July 29, 2011
Export Citation:
Assignee:
DAICEL CHEM (JP)
OMURA MASAYA (JP)
OMURA MASAYA (JP)
International Classes:
D21H11/18; D04H1/04; D04H1/42; H01M2/16
Domestic Patent References:
| WO2006004012A1 | 2006-01-12 |
Foreign References:
| JP2007231438A | 2007-09-13 |
Attorney, Agent or Firm:
KUWATA Mitsuo et al. (JP)
Atsuo Kuwata (JP)
Atsuo Kuwata (JP)
Download PDF:
Claims: