Title:
VINYLIDENE FLUORIDE POLYMER POWDER AND USE THEREOF
Document Type and Number:
WIPO Patent Application WO/2009/047969
Kind Code:
A1
Abstract:
Disclosed are: a powder of a vinylidene fluoride polymer having a high molecular
weight, which is excellent in the solubility in an organic solvent and is useful
as an electrode binder for a non-aqueous battery; an NMP solution; and a method
for producing an electrode mix. Specifically disclosed is a vinylidene fluoride
polymer powder which is produced by using a vinylidene fluoride polymer that
is produced by the supercritical suspension polymerization in an aqueous dispersion
medium, in which the volume of pores each having a pore diameter of 0.03 to 1.0 μm
inclusive makes up 77 to 93 vol% inclusive of the total pore volume as measured
on a mercury porosimeter, and which has an inherent viscosity of 2.0 dl/g or more.
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Inventors:
SAKUMA MITSUYASU (JP)
SATO HIROSHI (JP)
MIYAHARA MICHIHISA (JP)
HORIE KATSUO (JP)
SAKABE HIROSHI (JP)
SATO HIROSHI (JP)
MIYAHARA MICHIHISA (JP)
HORIE KATSUO (JP)
SAKABE HIROSHI (JP)
Application Number:
PCT/JP2008/066927
Publication Date:
April 16, 2009
Filing Date:
September 12, 2008
Export Citation:
Assignee:
KUREHA CORP (JP)
SAKUMA MITSUYASU (JP)
SATO HIROSHI (JP)
MIYAHARA MICHIHISA (JP)
HORIE KATSUO (JP)
SAKABE HIROSHI (JP)
SAKUMA MITSUYASU (JP)
SATO HIROSHI (JP)
MIYAHARA MICHIHISA (JP)
HORIE KATSUO (JP)
SAKABE HIROSHI (JP)
International Classes:
C08F2/18; C08F14/22; H01M4/62; H01M10/052; H01M10/36
Foreign References:
JPS59174605A | 1984-10-03 | |||
JPS4817388B1 | 1973-05-29 | |||
JP2005310747A | 2005-11-04 | |||
JPH0673135A | 1994-03-15 | |||
JPS4219333B1 |
Other References:
See also references of EP 2196479A4
Attorney, Agent or Firm:
ONO, Shinjiro et al. (Section 206 New Ohtemachi Bldg.,2-1, Ohtemachi 2-chom, Chiyoda-ku Tokyo 04, JP)
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