公开(公告)号：US20190144586A1

公开(公告)日：2019-05-16

申请号：US16098243

申请日：2017-05-09

Applicant: ZEON CORPORATION

Inventor： Takuya ISHII ,  Takafumi SEKIMOTO

IPC: C08F220/48 ,  H01M4/62 ,  H01M4/13 ,  H01M10/0525 ,  C08J9/28 ,  H01G11/38

Abstract: A technique for ensuring the coatability of a slurry composition and also enabling an electrochemical device to exhibit excellent high-voltage cycle characteristics is provided. A binder particle aggregate for an electrochemical device electrode comprises a plurality of binder particles that contain a polymer including 75.0 mol % or more and 99.5 mol % or less of a nitrile group-containing monomer unit, wherein a pore content ratio of the plurality of binder particles is 60% or more.

公开(公告)号：US20190386336A1

公开(公告)日：2019-12-19

申请号：US16490575

申请日：2018-03-08

Applicant: ZEON CORPORATION

Inventor： Takafumi SEKIMOTO

IPC: H01M10/058 ,  H01M10/0569 ,  H01M2/16 ,  H01M4/137 ,  C08F297/04 ,  C08L53/02

Abstract: Provided is a composition for a non-aqueous secondary battery functional layer, capable of forming a non-aqueous secondary battery functional layer that is excellent in pressure-sensitive adhesiveness as well as blocking resistance and allows the secondary battery to exhibit excellent cycle characteristics. The disclosed composition for a non-aqueous secondary battery functional layer includes a polymer and a solvent, the polymer being a block copolymer containing an aromatic vinyl monomer unit and an aliphatic conjugated diene monomer unit, in which the polymer has a diblock content of 5 mass % or more and 85 mass % or less.

公开(公告)号：US20210218030A1

公开(公告)日：2021-07-15

申请号：US17255430

申请日：2019-06-18

Applicant: ZEON CORPORATION

Inventor： Yukie ITO ,  Tomoya MURASE ,  Takafumi SEKIMOTO

IPC: H01M4/62 ,  H01M4/583 ,  H01M4/36 ,  H01M4/525 ,  H01M4/505 ,  H01M4/04 ,  H01M4/66

Abstract: A binder composition for a non-aqueous secondary battery electrode contains: a polymer A including a (meth)acrylic acid ester monomer unit; a polymer B having an iodine value of not less than 5 g/100 g and not more than 100 g/100 g; a polymer C including a nitrile group-containing monomer unit in a proportion of not less than 70 mass % and not more than 98 mass %; and an organic solvent.

公开(公告)号：US20200235398A1

公开(公告)日：2020-07-23

申请号：US16634858

申请日：2018-08-09

Applicant: ZEON CORPORATION

Inventor： Kenya SONOBE ,  Takafumi SEKIMOTO ,  Maki MESUDA ,  Hiroki OGURO

IPC: H01M4/62 ,  H01M10/0525 ,  C08F220/18

Abstract: A binder composition for a non-aqueous secondary battery electrode contains an organic solvent and a binder that includes a polymer A including an ethylenically unsaturated acid monomer unit in a proportion of not less than 1.00 mass % and not more than 10.00 mass %. The polymer A has a viscosity of 10,000 mPa·s or less at a shear rate of 0.1 s−1 when mixed with the organic solvent in a concentration of 8 mass % to obtain a mixture.