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Title:
BINDER COMPOSITION FOR NEGATIVE ELECTRODE, SLURRY FOR NEGATIVE ELECTRODE, NEGATIVE ELECTRODE, AND LITHIUM ION SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2017/154949
Kind Code:
A1
Abstract:
Provided is a binder composition for a negative electrode, which has good binding characteristics between an active material and a metal foil, and has excellent reduction resistance. The binder composition for a negative electrode contains a graft copolymer in which a monomer having (meth)acrylonitrile as a main component is grafted to polyvinyl alcohol, wherein the average degree of polymerization of the polyvinyl alcohol is 300 to 3,000, the degree of saponification is 70 to 100 mol%, the amount of polyvinyl alcohol in the graft copolymer is 10 to 90 mass%, and the amount of poly(meth)acrylonitrile is 90 to 10 mass%.

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Inventors:
NARUTOMI TAKUYA (JP)
WATANABE JUN (JP)
SUZUKI SHIGERU (JP)
Application Number:
PCT/JP2017/009147
Publication Date:
September 14, 2017
Filing Date:
March 08, 2017
Export Citation:
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Assignee:
DENKA COMPANY LTD (JP)
International Classes:
C08F261/04; H01M4/62; C08K3/04; C08K3/34; C08K7/06; C08L51/00; H01M4/133; H01M4/134
Domestic Patent References:
WO2015053224A12015-04-16
Foreign References:
JP2010521798A2010-06-24
JP2010500440A2010-01-07
JP2017063026A2017-03-30
EP3109924A12016-12-28
Attorney, Agent or Firm:
SK INTELLECTUAL PROPERTY LAW FIRM et al. (JP)
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