公开(公告)号：US20160344007A1

公开(公告)日：2016-11-24

申请号：US15114949

申请日：2015-02-03

Applicant: ZEON CORPORATION

Inventor： Yujiro TOYODA ,  Hiromi TAKAMATSU

IPC: H01M2/16 ,  H01M2/14 ,  C08J9/00 ,  H01M10/0525

CPC classification number: H01M2/1653 ,  C08J7/047 ,  C08J9/0066 ,  C08J2323/06 ,  C08J2333/26 ,  C08J2433/02 ,  C08J2433/26 ,  C09D133/26 ,  H01M2/145 ,  H01M2/166 ,  H01M10/0525

Abstract: A composition for a porous membrane of a secondary battery including a non-conductive particle and a water-soluble polymer, wherein the water-soluble polymer contains 80% by weight or more of a (meth)acrylamide monomer unit, and the water-soluble polymer has a storage modulus at 150° C. of 2.0×105 Pa or more; and a porous membrane manufactured therefrom and a secondary battery including the same.

Abstract translation: 一种包含非导电颗粒和水溶性聚合物的二次电池多孔膜组合物，其中所述水溶性聚合物含有80重量％以上的（甲基）丙烯酰胺单体单元，水溶性 聚合物在150℃下的储能模量为2.0×10 5 Pa以上; 以及由其制造的多孔膜和包含该多孔膜的二次电池。

公开(公告)号：US20170309916A1

公开(公告)日：2017-10-26

申请号：US15526089

申请日：2015-11-24

Applicant: ZEON CORPORATION

Inventor： Yujiro TOYODA ,  Takuya KANEDA ,  Kentaro HAYASAKA

IPC: H01M4/62 ,  H01M4/04 ,  H01M4/13 ,  H01M10/0525

CPC classification number: H01M4/622 ,  H01M2/16 ,  H01M2/1653 ,  H01M4/0402 ,  H01M4/13 ,  H01M4/62 ,  H01M10/0525 ,  H01M2300/0017

Abstract: Provided is a binder for a non-aqueous secondary battery that has excellent preservation stability and binding capacity, and that can suppress viscosity elevation of a slurry composition. The binder for a non-aqueous secondary battery contains a particulate polymer and water. The particulate polymer has a degree of swelling in an aqueous medium at pH 5 of less than a factor of 2 and has a degree of swelling in an aqueous medium at pH 8 of at least a factor of 2 and no greater than a factor of 7.

公开(公告)号：US20180248162A1

公开(公告)日：2018-08-30

申请号：US15755681

申请日：2016-08-26

Applicant: ZEON CORPORATION

Inventor： Hiromi TAKAMATSU ,  Yuuki OHKUBO ,  Yujiro TOYODA

IPC: H01M2/16 ,  H01M10/0525 ,  H01M4/131 ,  H01M4/1391

CPC classification number: H01M2/16 ,  H01M4/13 ,  H01M4/131 ,  H01M4/139 ,  H01M4/1391 ,  H01M4/505 ,  H01M4/525 ,  H01M10/052 ,  H01M10/0525

Abstract: A composition for a non-aqueous secondary battery functional layer contains a binder and inorganic particles including a sulfonate group. A non-aqueous secondary battery includes a functional layer for a non-aqueous secondary battery that is formed using this composition for a non-aqueous secondary battery functional layer.

公开(公告)号：US20170250389A1

公开(公告)日：2017-08-31

申请号：US15324337

申请日：2015-07-23

Applicant: ZEON CORPORATION

Inventor： Yujiro TOYODA

IPC: H01M2/16 ,  H01M4/525 ,  H01M10/0525

Abstract: Provided is a technique for capturing transition metal ions, such as cobalt ions, in a secondary battery that elute into an electrolysis solution from a positive electrode active material. A porous membrane for a lithium ion secondary battery contains non-conductive particles and a particulate polymer. The particulate polymer includes an aliphatic conjugated diene monomer unit in a proportion of greater than 85 mass %. The cobalt concentration in a film of 500 μm in thickness and 12 mm in diameter, formed from the particulate polymer, after the film is immersed in a specific cobalt chloride solution for 5 days at 25° C. is at least 300 mass ppm.

公开(公告)号：US20150311490A1

公开(公告)日：2015-10-29

申请号：US14646701

申请日：2013-11-26

Applicant: ZEON CORPORATION

Inventor： Tomoya MURASE ,  Yujiro TOYODA ,  Takuya KANEDA

IPC: H01M2/16 ,  H01M2/14 ,  C09J133/26 ,  H01M10/0525

CPC classification number: H01M2/168 ,  C09J133/26 ,  C09J2433/003 ,  H01M2/145 ,  H01M4/139 ,  H01M4/62 ,  H01M10/052 ,  H01M10/0525

Abstract: To provide a method for producing an electrode/separator laminate which, when producing the electrode/separator laminate by subjecting the electrode and separator with adhesive layer to thermocompression bonding, the separator and the electrode can be bonded with adequate adhesion, without detriment to ion conductivity. [Solution] This method for producing an electrode/separator laminate includes a step in which a separator with adhesive layer comprising a porous polyolefin film having an adhesive layer at least on one side, and an electrode which has an electrode active substance layer containing an electrode active substance and an electrode binder, are laminated in such a manner that the adhesive layer and the electrode active substance layer touch one another, and are subsequently subjected to thermocompression.

Abstract translation: 提供一种电极/隔板层叠体的制造方法，在通过使电极和隔膜通过粘合剂层进行热压接来制造电极/隔膜层叠体时，隔板和电极可以以足够的粘合力粘合而不损害离子传导性 。 [解决方案]电极/隔板层合体的制造方法具有以下工序：将具有粘接剂层的粘合剂层的隔膜的至少一面侧具有粘合剂层的电极和含有电极活性物质层的电极 活性物质和电极粘合剂以使粘合剂层和电极活性物质层彼此接触的方式层压，然后进行热压。

公开(公告)号：US20210226301A1

公开(公告)日：2021-07-22

申请号：US16973423

申请日：2019-06-06

Applicant: ZEON CORPORATION

Inventor： Yujiro TOYODA

IPC: H01M50/451 ,  H01M4/36 ,  H01M4/62 ,  H01M10/0525 ,  H01M50/417

Abstract: Provided is a method of efficiently producing a slurry for a secondary battery functional layer having non-conductive inorganic particles well dispersed in water. The method of producing a slurry includes a step of performing pulverizing and dispersing treatment of a composition containing non-conductive inorganic particles and water to obtain a dispersion liquid, and further includes either or both: a step of mixing the non-conductive inorganic particles and the water with a dispersant that includes a sulfo group and has a weight-average molecular weight of not less than 1,000 and not more than 15,000, before the step of performing pulverizing and dispersing treatment, to prepare the composition; and a step of adding a dispersant that includes a sulfo group and has a weight-average molecular weight of not less than 1,000 and not more than 15,000 to the dispersion liquid after the step of performing pulverizing and dispersing treatment.

公开(公告)号：US20180233728A1

公开(公告)日：2018-08-16

申请号：US15750949

申请日：2016-08-18

Applicant: ZEON CORPORATION

Inventor： Yuuki OHKUBO ,  Hiromi TAKAMATSU ,  Yujiro TOYODA

IPC: H01M2/16 ,  C08F220/46 ,  C08F220/14 ,  C08F228/02 ,  C08L33/20 ,  C08L33/10 ,  C08L41/00 ,  H01M10/0525

CPC classification number: H01M2/1653 ,  C08F220/14 ,  C08F220/46 ,  C08F228/02 ,  C08F2800/00 ,  C08L33/10 ,  C08L33/20 ,  C08L41/00 ,  C08L2201/50 ,  C08L2205/025 ,  H01M2/166 ,  H01M2/1673 ,  H01M2/1686 ,  H01M4/131 ,  H01M4/366 ,  H01M4/622 ,  H01M10/0525

Abstract: Provided is a binder composition for a non-aqueous secondary battery that enables formation of a functional layer and an electrode mixed material layer having high transition metal capturing ability. The binder composition for a non-aqueous secondary battery contains a water-soluble polymer and water. The water-soluble polymer includes a sulfonate group-containing monomer unit in a proportion of at least 10 mass % and not more than 50 mass % and a (meth)acrylonitrile monomer unit in a proportion of 20 mass % or more.

公开(公告)号：US20180114966A1

公开(公告)日：2018-04-26

申请号：US15558660

申请日：2016-03-30

Applicant: ZEON CORPORATION

Inventor： Naohiro YASUDA ,  Yujiro TOYODA

IPC: H01M2/16 ,  H01M10/0525 ,  H01M2/14 ,  B01D71/02

CPC classification number: H01M2/166 ,  B01D71/022 ,  C01F7/02 ,  C01F7/026 ,  H01M2/145 ,  H01M2/1686 ,  H01M10/0525 ,  H01M10/4235

Abstract: The purpose of the present disclosure is to provide a composition for a second battery porous membrane having an excellent redispersibility. The disclosed composition for a second battery porous membrane contains α-alumina-based modified particles, a particulate binder and water, and each α-alumina-based modified particle has a peak in a region from 3500 cm−1 to 3600 cm−1 in an infrared diffuse reflectance spectrometry.

公开(公告)号：US20180233725A1

公开(公告)日：2018-08-16

申请号：US15580790

申请日：2016-06-29

Applicant: ZEON CORPORATION

Inventor： Naohiro YASUDA ,  Yujiro TOYODA

IPC: H01M2/16 ,  H01M10/0525

CPC classification number: H01M2/166 ,  H01M2/16 ,  H01M10/0525

Abstract: Provided is a composition for a secondary battery porous membrane having excellent redispersibility. The composition for a secondary battery porous membrane contains inorganic oxide particles X, a metal hydroxide Y, a binder, and water. The metal hydroxide Y is a divalent or trivalent hydroxide, and is contained in an amount of at least 0.001 parts by mass and not more than 10 parts by mass per 100 parts by mass of the inorganic oxide particles X.

公开(公告)号：US20170279152A1

公开(公告)日：2017-09-28

申请号：US15504103

申请日：2015-09-17

Applicant: ZEON CORPORATION

Inventor： Yujiro TOYODA ,  Hiromi TAKAMATSU

IPC: H01M10/0525 ,  H01M2/16 ,  H01M4/80 ,  H01M4/76 ,  H01M4/62 ,  H01M4/13

CPC classification number: H01M10/0525 ,  H01M2/16 ,  H01M2/166 ,  H01M2/1686 ,  H01M4/13 ,  H01M4/622 ,  H01M4/762 ,  H01M4/80

Abstract: Provided is a technique for capturing transition metal ions, such as cobalt ions, in a secondary battery that elute from a positive electrode active material and for preventing deposition of transition metal at a negative electrode. A composition for a lithium ion secondary battery porous membrane that contains non-conductive particles and a binding material is provided. The binding material includes a polymer A including an aliphatic conjugated diene monomer unit in a proportion of greater than 85 mass % and a polymer B including a (meth)acrylic acid ester monomer unit in a proportion of at least 60 mass %. A mass basis ratio of content of the polymer A relative to content of the polymer B is at least 0.2 and no greater than 9.0.