Title:
正極用組成物
Document Type and Number:
Japanese Patent JP6909288
Kind Code:
B2
Abstract:
An object of the present invention is to provide a composition for a positive electrode having high binding properties and high flexibility. A composition for a positive electrode, comprising: a graft copolymer-based resin; a polyvinylidene fluoride-based resin, wherein the graft copolymer-based resin includes a graft copolymer in which a monomer, having (meth)acrylonitrile as a main component, is graft-copolymerized with a polyvinyl alcohol. The graft copolymer-based resin optionally further includes at least one of a (meth)acrylonitrile-based non-graft polymer and a polyvinyl alcohol homopolymer. And, a slurry for a positive electrode comprising the composition. A positive electrode comprising a metal foil and a coating film of the slurry. The composition preferably has a mass ratio of the graft copolymer-based resin and the polyvinylidene fluoride resin, which is: graft copolymer-based resin/polyvinylidene fluoride-based resin=2/8 to 8/2.
Inventors:
Takuya Naritomi
Jun Watanabe
Shigeru Suzuki
Jun Watanabe
Shigeru Suzuki
Application Number:
JP2019525480A
Publication Date:
July 28, 2021
Filing Date:
June 13, 2018
Export Citation:
Assignee:
Denka Co., Ltd.
International Classes:
H01M4/62; H01M4/13; H01M4/1391; H01M4/505; H01M4/525; H01M4/66
Domestic Patent References:
| JP2004134208A |
Foreign References:
| WO2015053224A1 | ||||
| WO2018021073A1 |
Attorney, Agent or Firm:
sk patent corporation
Akihiko Okuno
Hiroyuki Ito
Akihiko Okuno
Hiroyuki Ito