公开(公告)号：US20230223540A1

公开(公告)日：2023-07-13

申请号：US18007578

申请日：2021-05-31

Applicant: SHOWA DENKO K.K.

Inventor： Yuma TANAKA ,  Kentarou TAKAHASHI ,  Kazunari FUKASE ,  Tomonori KURATA ,  Mitsuru HANASAKI

IPC: H01M4/62 ,  H01M10/0525 ,  C08F220/06

CPC classification number: H01M4/622 ,  H01M10/0525 ,  C08F220/06 ,  C08F2800/20

Abstract: The present invention provides a binder for a nonaqueous secondary battery electrode capable of greatly improving the peeling strength of an electrode active material layer to a current collector while suppressing the occurrence of cracks in the electrode active material layer formed on the current collector. The binder for a nonaqueous secondary battery electrode includes a copolymer (P) having a structural unit (a) derived from a monomer (A) represented by formula (1), a structural unit (b) derived from a monomer (B) which is at least one kind selected from the group consisting of a (meth)acrylic acid and a salt thereof, and a structural unit (c) derived from a monomer (C) which is an ethylenically unsaturated carboxylic acid ester of an aromatic alcohol.

公开(公告)号：US20180162100A1

公开(公告)日：2018-06-14

申请号：US15576337

申请日：2016-05-17

Applicant: SHOWA DENKO K.K.

Inventor： Kazunari FUKASE ,  Hiroto KOUKA ,  Yasuhiro NAKAGAWA ,  Mitsuru DOI

IPC: B32B15/095 ,  H01M2/02 ,  B32B7/12 ,  C08G18/79 ,  C09J175/04

CPC classification number: B32B15/095 ,  B32B7/12 ,  B32B15/08 ,  C08G18/10 ,  C08G18/222 ,  C08G18/3212 ,  C08G18/36 ,  C08G18/4233 ,  C08G18/6208 ,  C08G18/6511 ,  C08G18/664 ,  C08G18/69 ,  C08G18/725 ,  C08G18/758 ,  C08G18/7837 ,  C08G18/79 ,  C08G18/792 ,  C09J175/04 ,  C09J175/06 ,  H01M2/0257 ,  H01M2/0287

Abstract: An adhesive for laminating a metal foil to a resin film, the adhesive including: a polyol (A); a multimer of a polyisocyanate (B); and a metal compound (C) being a compound of at least one metal of Groups 7 and 12, wherein the multimer of a polyisocyanate (B) includes a multimer of a saturated aliphatic polyisocyanate (b1) and a multimer of a saturated alicyclic polyisocyanate (b2).

公开(公告)号：US20190023954A1

公开(公告)日：2019-01-24

申请号：US16070432

申请日：2016-12-09

Applicant: SHOWA DENKO K.K.

Inventor： Hiroto KOUKA ,  Kazunari FUKASE ,  Yasuhiro NAKAGAWA

IPC: C09J175/04 ,  B32B15/08 ,  B32B7/12 ,  B32B15/20 ,  H01M2/02 ,  C08G18/62 ,  C08G18/73 ,  C08G18/22

Abstract: An adhesive for laminating a metal foil to a resin film, the adhesive including: a polyol (A); a multimer of a polyisocyanate (B); and a metal compound (C) being a compound of at least one metal of Groups 7 and 12, wherein the multimer of a polyisocyanate (B) contains a multimer of a saturated aliphatic polyisocyanate and a multimer of a saturated alicyclic polyisocyanate. Also disclosed is a laminate having a metal foil and a resin film laminated through an adhesive layer obtained from the adhesive for laminating of the invention. Yet further disclosed is a packaging material for a battery casing obtained by using the laminate. Yet further disclosed is a battery case obtained by using the packaging material for a battery casing. Also disclosed is a method for producing a battery case which includes deep drawing or bulging the packaging material for a battery casing.

公开(公告)号：US20170207427A1

公开(公告)日：2017-07-20

申请号：US15326137

申请日：2015-05-25

Applicant: SHOWA DENKO K.K.

Inventor： Hiroto KOUKA ,  Kazunari FUKASE ,  Naoki MURATA ,  Hui LI ,  Yasuhiro NAKAGAWA ,  Mitsuru DOI

IPC: H01M2/02 ,  B32B15/20 ,  B32B15/08 ,  B29C55/00 ,  B29C55/02 ,  C08G18/73 ,  H01M10/0525 ,  C08G18/10 ,  C08G18/42 ,  C09J175/06 ,  C08G18/24 ,  B29C51/00 ,  B29C51/08

Abstract: There are provided an adhesive for laminating a metal foil to a resin film and the like, the adhesive comprising: a polyurethane polyol (A); and a saturated aliphatic and/or saturated alicyclic polyisocyanate (B), wherein the polyurethane polyol (A) is obtained by polyaddition of components comprising a chain polyolefin polyol (a1) and/or a polyester polyol (a2) having a constituent unit derived from a hydrogenated dimer acid and a constituent unit derived from a hydrogenated dimer diol, a hydroxylated hydrocarbon compound (b) having a saturated or unsaturated cyclic hydrocarbon structure and two or more hydroxy groups, and a polyisocyanate (c).

公开(公告)号：US20150357647A1

公开(公告)日：2015-12-10

申请号：US14760647

申请日：2014-01-20

Applicant: SHOWA DENKO K.K.

Inventor： Tomonori KURATA ,  Mitsuru HANASAKI ,  Kazunari FUKASE

IPC: H01M4/62 ,  H01M4/133 ,  H01M10/0525 ,  H01M4/131

CPC classification number: H01M4/622 ,  H01M4/131 ,  H01M4/133 ,  H01M4/139 ,  H01M10/0525 ,  H01M2004/027 ,  H01M2004/028 ,  H01M2220/20 ,  H01M2220/30

Abstract: The present invention provides a binder for lithium ion secondary battery electrodes that is obtained by emulsion polymerization of an ethylenically unsaturated monomer in an aqueous medium in the presence of a surfactant, the ethylenically unsaturated monomer being composed, with respect to the total mass of the ethylenically unsaturated monomer, of 15% by mass to 70% by mass of styrene, 1% by mass to 10% by mass of an N atom-containing ethylenically unsaturated monomer, 1% by mass to 10% by mass of an ethylenically unsaturated carboxylic acid, 0.1% by mass to 5% by mass of an internal crosslinking agent, and 22% by mass to 82.9% by mass of another ethylenically unsaturated monomer that is copolymerizable with these substances, and has a glass transition temperature of −55° C. to 30° C.

Abstract translation: 本发明提供了一种用于锂离子二次电池电极的粘合剂，其通过烯属不饱和单体在水性介质中在表面活性剂存在下乳液聚合而获得，所述表面活性剂组成的烯属不饱和单体相对于烯属不饱和单体的总质量 不饱和单体为15质量％〜70质量％的苯乙烯，1质量％〜10质量％的含N原子的烯键式不饱和单体，1质量％〜10质量％的烯属不饱和羧酸 ，0.1质量％〜5质量％的内部交联剂，22质量％〜82.9质量％的另外的可与这些物质共聚的烯属不饱和单体，玻璃化转变温度为-55℃。 至30℃