公开(公告)号：US20180277848A1

公开(公告)日：2018-09-27

申请号：US15762202

申请日：2016-09-27

Applicant: ZEON CORPORATION

Inventor： Taku MATSUMURA ,  Jun MIKAMI

IPC: H01M4/62 ,  C08L27/16 ,  C08L47/00 ,  C08L27/20 ,  H01M4/131 ,  H01M10/0525

CPC classification number: H01M4/625 ,  C08L15/00 ,  C08L27/16 ,  C08L27/20 ,  C08L47/00 ,  H01M4/0404 ,  H01M4/13 ,  H01M4/131 ,  H01M4/139 ,  H01M4/1391 ,  H01M4/622 ,  H01M4/623 ,  H01M4/667 ,  H01M4/668 ,  H01M10/0525 ,  H01M2004/028

Abstract: Provided is a slurry composition for a secondary battery electrode that has excellent fibrous carbon nanomaterial dispersibility and is capable of forming an electrode mixed material layer having excellent close adherence to a current collector. The slurry composition is obtained using a conductive material paste composition for a secondary battery electrode that contains a fibrous carbon nanomaterial, a binder, and a solvent. The binder includes a first copolymer that includes an alkylene structural unit and a nitrile group-containing monomer unit and has a weight average molecular weight of at least 170,000 and less than 1,500,000.

公开(公告)号：US20190229368A1

公开(公告)日：2019-07-25

申请号：US16369366

申请日：2019-03-29

Applicant: ZEON CORPORATION

Inventor： Taku MATSUMURA

IPC: H01M10/0525 ,  H01M4/13 ,  H01G11/50 ,  H01G11/38 ,  H01G11/86 ,  H01M4/587 ,  H01M4/525 ,  H01G11/42 ,  H01M4/62 ,  H01G11/24

Abstract: A method for producing composite particles for an electrochemical device electrode is provided. The composite particles include an electrode active material and 0.1 to 10 parts by weight of a binder relative to 100 parts by weight of the electrode active material based on a dry weight, the binder having a glass transition temperature of −30 to 30° C. Tha method comprises a step of adjusting a cumulative 10% diameter (D10 diameter) of the composite particles to 20 μm or more and 100 μm or less in a particle diameter distribution in terms of a volume. The composite particles as a powder have a pressure loss of 5.0 mbar or less and a dynamic repose angle of 20° or more and less than 40°.

公开(公告)号：US20220336812A1

公开(公告)日：2022-10-20

申请号：US17635924

申请日：2020-08-21

Applicant: ZEON CORPORATION

Inventor： Taku MATSUMURA ,  Ai MASUDA

IPC: H01M4/62 ,  H01M10/0525 ,  H01M4/587 ,  H01M4/1393 ,  H01M4/04 ,  C08F297/04

Abstract: A binder composition for a non-aqueous secondary battery contains water-soluble macromolecules, water, and a particulate polymer formed of a polymer that includes a block region formed of an aromatic vinyl monomer unit. Surface acid content A of the particulate polymer is 0.05 mmol/g or more, acid content B in an aqueous phase of the binder composition per 1 g of the particulate polymer is not less than 0.03 mmol/g and not more than 0.80 mmol/g, and a ratio (A/B) of the surface acid content A of the particulate polymer and the acid content B in the aqueous phase of the binder composition is not less than 0.5 and not more than 5.0.

公开(公告)号：US20210328259A1

公开(公告)日：2021-10-21

申请号：US17267495

申请日：2019-08-23

Applicant: ZEON CORPORATION

Inventor： Taku MATSUMURA

IPC: H01M10/0562 ,  H01M10/0525

Abstract: Disclosed is a slurry composition for an all-solid-state secondary battery which comprises an inorganic solid electrolyte, a binder, a basic functional group-containing compound, and a solvent, wherein an amount of the basic functional group-containing compound is 0.005 parts by mass or more and 5 parts by mass or less per 100 parts by mass of the inorganic solid electrolyte.

公开(公告)号：US20170317378A1

公开(公告)日：2017-11-02

申请号：US15522077

申请日：2015-10-23

Applicant: ZEON CORPORATION

Inventor： Taku MATSUMURA

IPC: H01M10/0525 ,  H01G11/42 ,  H01G11/24 ,  H01M4/525 ,  H01G11/86 ,  H01M4/587 ,  H01M4/62 ,  H01M4/02

CPC classification number: H01M10/0525 ,  H01G11/24 ,  H01G11/38 ,  H01G11/42 ,  H01G11/50 ,  H01G11/86 ,  H01M4/13 ,  H01M4/525 ,  H01M4/587 ,  H01M4/622 ,  H01M2004/021 ,  H01M2220/30 ,  Y02E60/13

Abstract: Composite particles for electrochemical device electrodes, which contain an electrode active material and a binder. A composite particle layer formed of the composite particles has a pressure loss of 5.0 mbar or less and a dynamic repose angle of 20° or more and less than 40°.

公开(公告)号：US20220336814A1

公开(公告)日：2022-10-20

申请号：US17753833

申请日：2020-09-25

Applicant: ZEON CORPORATION

Inventor： Taku MATSUMURA

IPC: H01M4/62 ,  C08L53/02

Abstract: A binder composition for a non-aqueous secondary battery contains specific polymer particles. The polymer particles contain a polymer 1 that is a block polymer including an acidic group-containing monomer unit and a polymer 2 that does not include an acidic group-containing monomer unit. The polymer 1 constitutes a proportion of not less than 10 mass % and not more than 90 mass % in the polymer particles. The polymer 2 includes either or both of an aliphatic conjugated diene monomer unit and an alkylene structural unit. The aliphatic conjugated diene monomer unit and the alkylene structural unit constitute a total proportion of 55 mass % or more based on the total mass of all repeating units included in the polymer 2.

公开(公告)号：US20190058194A1

公开(公告)日：2019-02-21

申请号：US16079680

申请日：2017-01-31

Applicant: ZEON CORPORATION

Inventor： Taku MATSUMURA

IPC: H01M4/62 ,  H01M10/0566 ,  C08L33/08 ,  C08L33/10 ,  C08L33/20

Abstract: Provided is a binder composition for a non-aqueous secondary battery electrode that has excellent viscosity stability and can form an electrode mixed material layer having excellent electrolyte solution resistance. The binder composition for a non-aqueous secondary battery electrode contains a polymer including a functional group that is bondable with a cationic group and an organic compound including at least two cationic groups.

公开(公告)号：US20170346130A1

公开(公告)日：2017-11-30

申请号：US15520940

申请日：2015-10-23

Applicant: ZEON CORPORATION

Inventor： Kouichirou MAEDA ,  Taku MATSUMURA ,  Kunihito ARAI

IPC: H01M10/058 ,  H01M2/14 ,  H01M2/34 ,  H01M10/052

Abstract: The double-sided tape for fixing an electrode constituent body is used in an electrochemical device that houses in a pouch-type outer casing an electrode constituent body wherein a positive electrode member, a separator member and a negative electrode member are layered or wound. The double-sided tape comprises a surface having a pressure-sensitive adhesive for adhering to the electrode constituent body, and a surface having a heat-sensitive adhesive for adhering to the pouch-type outer casing.

公开(公告)号：US20230282832A1

公开(公告)日：2023-09-07

申请号：US18006872

申请日：2021-08-27

Applicant: ZEON CORPORATION

Inventor： Taku MATSUMURA ,  Keiichiro TANAKA ,  Hiroki OSHIMA

IPC: H01M4/62

CPC classification number: H01M4/622 ,  H01M2004/021

Abstract: Provided is a binder composition for a non-aqueous secondary battery electrode that can form an electrode for a non-aqueous secondary battery having excellent moisture resistance. The binder composition for a non-aqueous secondary battery electrode contains phenolic compound particles and a particulate polymer formed of a graft polymer that includes an acidic graft chain and that is obtained through a graft polymerization reaction of an acidic group-containing monomer and/or macromonomer with core particles containing a block copolymer that includes an aromatic vinyl block region formed of an aromatic vinyl monomer unit and an aliphatic conjugated diene block region formed of an aliphatic conjugated diene monomer unit.

公开(公告)号：US20220293947A1

公开(公告)日：2022-09-15

申请号：US17635945

申请日：2020-08-21

Applicant: ZEON CORPORATION

Inventor： Ai MASUDA ,  Taku MATSUMURA

IPC: H01M4/62 ,  H01M10/0525 ,  C08F279/02 ,  C08F2/10

Abstract: A binder composition for a non-aqueous secondary battery contains water-soluble macromolecules, water, and a particulate polymer formed of a polymer that includes a block region formed of an aromatic vinyl monomer unit. The surface acid content of the particulate polymer is 0.02 mmol/g or more, and the content of components having a molecular weight of not less than 1,000 and less than 15,000 among the water-soluble macromolecules is not less than 0.01 parts by mass and not more than 1.50 parts by mass per 100 parts by mass of the particulate polymer.