AQUEOUS VINYLIDENE FLUORIDE-BASED POLYMER COMPOSITION AND USE THEREOF

Title:

AQUEOUS VINYLIDENE FLUORIDE-BASED POLYMER COMPOSITION AND USE THEREOF

Document Type and Number:

WIPO Patent Application WO/2015/079936

Kind Code:

A1

Abstract:

The purpose of the present invention is to provide an aqueous vinylidene fluoride-based polymer composition which can provide a mixture that is for use in a nonaqueous electrolyte secondary battery and that exhibits excellent bond strength to a current collector. This aqueous vinylidene fluoride-based polymer composition comprises both a vinylidene fluoride-based polymer and water, wherein: the vinylidene fluoride-based polymer exhibits a multi-modal scattered light intensity distribution in dynamic light scattering; the vinylidene fluoride-based polymer comprises a component (A) which exhibits particle diameters of 1μm or less in the scattered light intensity distribution and a component (B) which exhibits particle diameters exceeding 1μm therein; the D50 of the component (A) is 0.02 to 0.5μm, while the D50 of the component (B) is 1.1 to 50μm; and in the scattered light intensity distribution, the integrated frequency in a particle diameter range of 1.0 to 1000.0nm is 70.0 to 98.7%.

Inventors:

NAGASAWA YOSHIYUKI (JP)
IGARASHI TAMITO (JP)

Application Number:

PCT/JP2014/080231

Publication Date:

June 04, 2015

Filing Date:

November 14, 2014

Export Citation:

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Assignee:

KUREHA CORP (JP)

International Classes:

C08F214/22; H01M4/62; C08K3/18; C08L27/16; H01M4/13

Domestic Patent References:

WO2006043609A1	2006-04-27
WO2011043246A1	2011-04-14
WO2013008564A1	2013-01-17
WO2013027771A1	2013-02-28
WO2010138647A1	2010-12-02

Foreign References:

JP2013030449A	2013-02-07
JP2013033702A	2013-02-14
JP2012201866A	2012-10-22
JP2012149152A	2012-08-09
JP2013114848A	2013-06-10
JP2007005148A	2007-01-11
JPH08195201A	1996-07-30

Other References: