Title:
SEPARATOR FOR NONAQUEOUS ELECTROLYTE ELECTRICITY STORAGE DEVICES, NONAQUEOUS ELECTROLYTE ELECTRICITY STORAGE DEVICE, METHOD FOR PRODUCING SEPARATOR FOR NONAQUEOUS ELECTROLYTE ELECTRICITY STORAGE DEVICES, AND METHOD FOR MANUFACTURING NONAQUEOUS ELECTROLYTE ELECTRICITY STORAGE DEVICE
Document Type and Number:
WIPO Patent Application WO/2012/172789
Kind Code:
A1
Abstract:
The present invention provides a method for producing a separator for nonaqueous electrolyte electricity storage devices, which is capable of: avoiding the usage of a solvent that places large burden on the environment; relatively easily controlling parameters such as void fraction and pore diameter; and providing a separator for nonaqueous electrolyte electricity storage devices, said separator having high electrochemical stability. The present invention relates to a method for producing a separator for nonaqueous electrolyte electricity storage devices, said separator having a thickness within the range of 5-50 μm. This method comprises: a step of preparing an epoxy resin composition which contains an epoxy resin that has no aromatic ring in each molecular structure, a curing agent and porogen; a step of obtaining an epoxy resin sheet by molding a cured body of the epoxy resin composition into a sheet form or by curing a sheet-like molded body of the epoxy resin composition; and a step of removing the porogen from the epoxy resin sheet with use of a halogen-free solvent.
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Inventors:
YANO CHIHARU (JP)
SAKAMOTO MICHIE (JP)
TAKE HIROYOSHI (JP)
YAMADA YOSUKE (JP)
NOUMI SHUNSUKE (JP)
SAKAMOTO MICHIE (JP)
TAKE HIROYOSHI (JP)
YAMADA YOSUKE (JP)
NOUMI SHUNSUKE (JP)
Application Number:
PCT/JP2012/003837
Publication Date:
December 20, 2012
Filing Date:
June 12, 2012
Export Citation:
Assignee:
NITTO DENKO CORP (JP)
YANO CHIHARU (JP)
SAKAMOTO MICHIE (JP)
TAKE HIROYOSHI (JP)
YAMADA YOSUKE (JP)
NOUMI SHUNSUKE (JP)
YANO CHIHARU (JP)
SAKAMOTO MICHIE (JP)
TAKE HIROYOSHI (JP)
YAMADA YOSUKE (JP)
NOUMI SHUNSUKE (JP)
International Classes:
B29C39/02; B29C41/12; C08G59/32; C08J9/26; C08L63/00; H01M50/406; H01M50/414
Foreign References:
| JP2010077358A | 2010-04-08 | |||
| JP2010099654A | 2010-05-06 | |||
| JP2010121122A | 2010-06-03 | |||
| JP2008013672A | 2008-01-24 | |||
| JP2007035556A | 2007-02-08 | |||
| JP2005038793A | 2005-02-10 | |||
| JP2002324579A | 2002-11-08 | |||
| JP2001192487A | 2001-07-17 | |||
| JP2000030683A | 2000-01-28 |
Other References:
See also references of EP 2720290A4
Attorney, Agent or Firm:
KAMADA, Koichi et al. (JP)
Koichi Kamata (JP)
Koichi Kamata (JP)
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Claims: