公开(公告)号：US20180212218A1

公开(公告)日：2018-07-26

申请号：US15745831

申请日：2016-07-21

Applicant: ZEON CORPORATION

Inventor： Kazuki ASAI ,  Junichi ASANO

IPC: H01M2/16 ,  H01M4/13 ,  C08L33/26

CPC classification number: H01M2/16 ,  C08L33/26 ,  C08L2205/025 ,  C08L2205/22 ,  H01M2/166 ,  H01M4/13 ,  H01M4/622 ,  H01M10/0525

Abstract: Provided is a composition for a non-aqueous secondary battery functional layer that has excellent redispersibility of non-conductive particles and enables formation of a functional layer for a non-aqueous secondary battery having excellent flexibility. Also provided are a functional layer for a non-aqueous secondary battery formed using this composition for a non-aqueous secondary battery functional layer and a non-aqueous secondary battery including this functional layer for a non-aqueous secondary battery. The composition for a non-aqueous secondary battery functional layer contains non-conductive particles, a water-soluble polymer that includes a (meth)acrylamide monomer unit in a proportion of 40 mass % or more and has a weight average molecular weight of less than 3.0×105, and a particulate polymer.

公开(公告)号：US20220181631A1

公开(公告)日：2022-06-09

申请号：US17594417

申请日：2020-04-17

Applicant: ZEON CORPORATION

Inventor： Tomoya MURASE ,  Junichi ASANO ,  Fumiaki BANDO

IPC: H01M4/62 ,  H01M4/04 ,  H01M10/0569

Abstract: A binder composition for a non-aqueous secondary battery electrode contains a polymer A. The polymer A includes a nitrile group-containing monomer unit in a proportion of not less than 80.0 mass % and not more than 99.9 mass %, has a weight-average molecular weight (Mw) of not less than 700,000 and not more than 2,000,000, and has a molecular weight distribution (Mw/Mn) of less than 3.0.

公开(公告)号：US20190221807A1

公开(公告)日：2019-07-18

申请号：US16307252

申请日：2017-05-10

Applicant: ZEON CORPORATION

Inventor： Kei OURA ,  Junichi ASANO

IPC: H01M2/16 ,  H01M4/36 ,  H01M4/62

Abstract: A composition for a non-aqueous secondary battery functional layer contains organic particles having a specific chemical composition and properties, and a binder. The organic particles contained in the composition for a functional layer include an aromatic monovinyl monomer unit in a proportion of at least 20 mass % and not more than 70 mass % and a (meth)acrylic acid alkyl ester monomer unit in a proportion of at least 30 mass % and not more than 70 mass %. The organic particles have a degree of swelling in electrolyte solution of more than a factor of 1.0 and not more than a factor of 4.0, a volume-average particle diameter of at least 0.4 μm and not more than 1.0 μm, and a tetrahydrofuran-insoluble content of at least 20 mass % and not more than 70 mass %.

公开(公告)号：US20220190340A1

公开(公告)日：2022-06-16

申请号：US17594252

申请日：2020-04-17

Applicant: ZEON CORPORATION

Inventor： Junichi ASANO ,  Yukie ITO

IPC: H01M4/62 ,  C08F293/00

Abstract: A binder composition for a non-aqueous secondary battery electrode contains a polymer A. The polymer A includes a nitrile group-containing monomer unit in a proportion of not less than 80.0 mass % and not more than 99.9 mass %, has a weight-average molecular weight (Mw) of not less than 700,000 and not more than 2,000,000, and includes components having a molecular weight of less than 500,000 in a proportion of less than 30%.

公开(公告)号：US20200185724A1

公开(公告)日：2020-06-11

申请号：US16617671

申请日：2018-06-14

Applicant: ZEON CORPORATION

Inventor： Junichi ASANO

IPC: H01M4/62 ,  H01M4/66 ,  H01M10/0525 ,  H01G11/38

Abstract: A binder composition contains a water-soluble polymer and water. The water-soluble polymer includes a nitrile group-containing monomer unit and an ethylenically unsaturated carboxylic acid monomer unit, and has a weight-average molecular weight of not less than 1,000 and not more than 50,000.

公开(公告)号：US20230382737A1

公开(公告)日：2023-11-30

申请号：US18245159

申请日：2021-08-31

Applicant: ZEON CORPORATION

Inventor： Junichi ASANO

IPC: C01B32/174 ,  H01M10/0525 ,  H01M4/04

CPC classification number: C01B32/174 ,  H01M10/0525 ,  H01M4/0416 ,  H01M2004/028 ,  C01B2202/32 ,  C01B2202/36 ,  C01P2006/12

Abstract: Provided is a technique that makes it possible to cause a secondary battery to display excellent output characteristics and other characteristics. Secondary battery production is performed using a conductive material dispersion liquid that contains a conductive material, a dispersant, and a solvent. The conductive material is one or more carbon nanotubes having a specific surface area of not less than 800 m2/g and not more than 1,300 m2/g and having a volume-average particle diameter (D90) of 50 μm or less in the conductive material dispersion liquid. The dispersant is a hydrogenated acrylonitrile-butadiene copolymer having a weight-average molecular weight of 200,000 or less.

公开(公告)号：US20190157680A1

公开(公告)日：2019-05-23

申请号：US16091653

申请日：2017-04-18

Applicant: ZEON CORPORATION

Inventor： Junichi ASANO

IPC: H01M4/62 ,  H01M4/1391 ,  H01M4/04

Abstract: Provided is a binder composition for a non-aqueous secondary battery functional layer that enables production of a composition for a non-aqueous secondary battery functional layer that has excellent stability and can cause a non-aqueous secondary battery to display excellent cycle characteristics. The binder composition contains a water-soluble polymer and water. The water-soluble polymer has a contact angle with water of at least 40° and not more than 80° and has a degree of swelling in electrolyte solution of more than a factor of 1.0 and not more than a factor of 3.0.

公开(公告)号：US20160260973A1

公开(公告)日：2016-09-08

申请号：US15030665

申请日：2014-10-23

Applicant: ZEON CORPORATION

Inventor： Kenya SONOBE ,  Yusaku MATSUO ,  Junichi ASANO ,  Tan KAN

IPC: H01M4/62 ,  H01M4/133 ,  H01M4/587 ,  H01M4/38 ,  H01M4/36 ,  H01M10/0585 ,  H01M4/131 ,  H01M4/525 ,  H01M2/16 ,  H01M10/0569 ,  H01M10/0568 ,  H01M10/0567 ,  H01M10/0525 ,  H01M4/66

CPC classification number: H01M4/62 ,  H01M2/0207 ,  H01M2/024 ,  H01M2/026 ,  H01M2/0262 ,  H01M2/0285 ,  H01M2/1653 ,  H01M4/0404 ,  H01M4/0435 ,  H01M4/0471 ,  H01M4/131 ,  H01M4/133 ,  H01M4/134 ,  H01M4/1391 ,  H01M4/1393 ,  H01M4/1395 ,  H01M4/364 ,  H01M4/386 ,  H01M4/525 ,  H01M4/587 ,  H01M4/622 ,  H01M4/623 ,  H01M4/625 ,  H01M4/661 ,  H01M10/0525 ,  H01M10/0567 ,  H01M10/0568 ,  H01M10/0569 ,  H01M10/0585 ,  H01M2004/027 ,  H01M2004/028 ,  H01M2300/0037

Abstract: A slurry composition for a negative electrode of a lithium ion secondary battery, the slurry composition including 100 parts by weight of an active material (A) containing 8% by weight or higher of a non-carbon negative electrode active material, 0.5 to 10 parts by weight of a water-soluble polymer (B) containing a carboxy group, 0.01 to 0.5 parts by weight of a particulate polymer (C), and water; a negative electrode for a lithium ion secondary battery including a negative electrode material layer obtained therefrom; and a lithium ion secondary battery having the same.

Abstract translation: 一种锂离子二次电池的负极用浆料组合物，该浆料组合物包含100重量份含有8重量％以上的非碳负极活性物质的活性物质（A），0.5〜10重量份 的含有羧基的水溶性聚合物（B），0.01〜0.5重量份的颗粒状聚合物（C）和水; 包含由其获得的负极材料层的锂离子二次电池用负极; 和具有该锂离子二次电池的锂离子二次电池。