公开(公告)号：US20210296651A1

公开(公告)日：2021-09-23

申请号：US17260440

申请日：2019-07-12

Applicant: SHOWA DENKO K.K.

Inventor： Tomonori KURATA ,  Shuhei MARUTA ,  Kirida KUNANURUKSAPONG ,  Mitsuru HANASAKI

IPC: H01M4/62 ,  H01M4/13 ,  H01M10/0525 ,  C08F290/06

Abstract: The present invention relates to a copolymer for a binder for a non-aqueous battery electrode, which ensures sufficient binding properties between active materials and between the active materials and a current collector, suppresses generation of aggregates in a slurry containing the electrode active material, suppresses generation of cracks in an electrode active material layer, and sufficiently ensures peel strength of the electrode active material layer against the current collector. The copolymer for a binder for a non-aqueous battery electrode is a copolymer (P) of a monomer mixture (M) containing a monomer (A) represented by general formula (1), a (meth)acrylic acid monomer (B), and a monomer (C) represented by general formula (2), wherein a content of a structure derived from the monomer (A) in the copolymer (P) is 0.5 to 20.0 mass % and a content of a structure derived from the monomer (C) in the copolymer (P) is 0.5 to 20.0 mass %.