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：US20210050594A1

公开(公告)日：2021-02-18

申请号：US16963251

申请日：2019-02-05

Applicant: ZEON CORPORATION

Inventor： Ai MASUDA

IPC: H01M4/62 ,  H01M2/16 ,  H01M10/0525 ,  C08G69/44

Abstract: A binder composition for an electrochemical device contains a polymer A and water. In the polymer A of the binder composition for an electrochemical device, the content of an amide group-containing monomer unit is not less than 10 mass % and not more than 90 mass %, and the content of an epoxy group-containing monomer unit is not less than 0.1 mass % and not more than 50 mass %.

公开(公告)号：US20220181630A1

公开(公告)日：2022-06-09

申请号：US17593917

申请日：2020-03-19

Applicant: ZEON CORPORATION

Inventor： Ai MASUDA ,  Hiroto KIDOKORO

IPC: H01M4/62 ,  C08F297/04 ,  C08L53/02

Abstract: A binder composition for a non-aqueous secondary battery contains a particulate polymer including a block copolymer A represented by the following general formula (A): Ar1a-Da-Ar2a. (In general formula (A), Ar1a indicates a block region that has a weight-average molecular weight of 5,500 to 20,000 and is formed of an aromatic vinyl monomer unit, Ar2a indicates a block region that has a weight-average molecular weight of 40,000 to 400,000 and is formed of an aromatic vinyl monomer unit, and Da indicates a block region that is 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.

公开(公告)号：US20200295372A1

公开(公告)日：2020-09-17

申请号：US16650382

申请日：2018-09-27

Applicant: ZEON CORPORATION

Inventor： Yusuke ADACHI ,  Kenya SONOBE ,  Yasuhiro ISSHIKI ,  Ai MASUDA

IPC: H01M4/62 ,  C08F220/06 ,  C08F220/56 ,  C08L33/00 ,  C08L51/04

Abstract: Provided is a binder composition for a secondary battery with which a slurry composition for a secondary battery having low foaming can be produced, and that can improve handleability of a functional layer or electrode layer formed using the produced slurry composition for a secondary battery. The binder composition for a secondary battery contains a polymer A and a solvent. The polymer A includes an amide group-containing monomer unit and a carboxylic acid ester-containing monomer unit including an alkyl chain having a carbon number of not less than 2 and not more than 9. Content of the carboxylic acid ester-containing monomer unit in the polymer A is not less than 12 mass % and not more than 28 mass %.