公开(公告)号：US11742514B2

公开(公告)日：2023-08-29

申请号：US16650548

申请日：2018-09-26

Applicant: Toray Industries, Inc.

Inventor： Kei Ikoma ,  Nobuyasu Kai ,  Akimitsu Tsukuda

IPC: H01M50/449 ,  H01M10/0525 ,  H01M50/446 ,  H01M50/463 ,  H01M50/417 ,  H01M50/423 ,  H01M50/489 ,  H01M50/443 ,  H01M50/457 ,  H01M50/451 ,  H01M50/491

CPC classification number: H01M10/0525 ,  H01M50/417 ,  H01M50/423 ,  H01M50/443 ,  H01M50/446 ,  H01M50/451 ,  H01M50/457 ,  H01M50/463 ,  H01M50/489 ,  H01M50/491

Abstract: A porous film includes a porous substrate, and a porous layer laminated on at least one surface of the porous substrate. The porous layer contains an organic resin different from a resin constituting the porous substrate. A height of a projection of the porous layer in an interface between the porous substrate and the porous layer is 200 nm or more, and a distance between projections is 1 μm or more.

公开(公告)号：US11637351B2

公开(公告)日：2023-04-25

申请号：US16472491

申请日：2018-02-15

Applicant: Toray Industries, Inc.

Inventor： Nobuyasu Kai ,  Kei Ikoma ,  Akimitsu Tsukuda

IPC: H01M50/454 ,  H01M50/491 ,  H01M50/414 ,  H01M50/423 ,  H01M50/451 ,  H01M50/489

Abstract: At low cost, a porous film has high thermal film rupture resistance and outstanding battery characteristics. The porous film has a porous layer on at least one surface of a porous substrate, and if the surface porosity of the porous layer is defined as α and the cross-sectional void ratio of the porous layer is defined as β, then α/β does not exceed 90%.

公开(公告)号：US20200321586A1

公开(公告)日：2020-10-08

申请号：US16650548

申请日：2018-09-26

Applicant: Toray Industries, Inc.

Inventor： Kei Ikoma ,  Nobuyasu Kai ,  Akimitsu Tsukuda

IPC: H01M2/16 ,  H01M2/18 ,  H01M10/0525

Abstract: A porous film includes a porous substrate, and a porous layer laminated on at least one surface of the porous substrate. The porous layer contains an organic resin different from a resin constituting the porous substrate. A height of a projection of the porous layer in an interface between the porous substrate and the porous layer is 200 nm or more, and a distance between projections is 1 μm or more.

公开(公告)号：US20190217587A1

公开(公告)日：2019-07-18

申请号：US16312780

申请日：2017-06-14

Applicant: Toray Industries, Inc.

Inventor： Atsushi Sawamoto ,  Masanori Sueoka ,  Kazuma Matsui ,  Kohei Sato ,  Akimitsu Tsukuda ,  Junji Michizoe ,  Do Kyun Kim

IPC: B32B27/34 ,  B32B27/28

Abstract: A laminated film includes, at least on one side thereof, a layer containing a hardening resin, having a total thickness of 1 to 100 μm, a light transmittance of 70% or more at a wavelength of 400 nm, a Young's modulus of 5 GPa or more when applying a nanoindenter to make a 1 μm depression in the thickness direction into the surface of the hardening layer, and undergoing a rate of deformation of 500 ppm or less after applying a stress of 0.5 MPa for 30 minutes.

公开(公告)号：US20230126565A1

公开(公告)日：2023-04-27

申请号：US17913460

申请日：2021-03-26

Applicant: Toray Industries, Inc.

Inventor： Nobuyasu Kai ,  Keiichi Kamon ,  Hiroko Tanaka ,  Akimitsu Tsukuda ,  Naoki Imazu

IPC: C08F220/24 ,  H01M50/42 ,  H01M50/426 ,  H01M50/443 ,  H01M50/449 ,  H01M50/446

Abstract: A porous film has a porous substrate and, on at least one surface of the porous substrate, porous layer that contains particles A. The particles A have a mixture containing a polymer that includes fluorine-containing (meth)acrylate monomers and a polymer that includes monomers having two or more reactive groups per molecule, or the particles A have a copolymer containing fluorine-containing (meth)acrylate monomers and monomers that have two or more reactive groups per molecule. The monomers having two or more reactive groups per molecule are contained in the particles A in an amount ranging from greater than 10% by mass to not more than 30% by mass, where all components of the particles A are assumed to constitute 100% by mass.

公开(公告)号：US10751980B2

公开(公告)日：2020-08-25

申请号：US16312780

申请日：2017-06-14

Applicant: Toray Industries, Inc.

Inventor： Atsushi Sawamoto ,  Masanori Sueoka ,  Kazuma Matsui ,  Kohei Sato ,  Akimitsu Tsukuda ,  Junji Michizoe ,  Do Kyun Kim

IPC: B32B27/34 ,  B32B27/00 ,  C08J7/046 ,  C09D7/20 ,  B32B7/02 ,  C08J7/04 ,  B32B27/28 ,  B32B38/00

Abstract: A laminated film includes, at least on one side thereof, a layer containing a hardening resin, having a total thickness of 1 to 100 μm, a light transmittance of 70% or more at a wavelength of 400 nm, a Young's modulus of 5 GPa or more when applying a nanoindenter to make a 1 μm depression in the thickness direction into the surface of the hardening layer, and undergoing a rate of deformation of 500 ppm or less after applying a stress of 0.5 MPa for 30 minutes.

公开(公告)号：US20170358817A1

公开(公告)日：2017-12-14

申请号：US15523803

申请日：2015-12-09

Applicant: Toray Industries, Inc.

Inventor： Atsushi Sawamoto ,  Dai Nishimura ,  Akimitsu Tsukuda

IPC: H01M10/0565 ,  H01M2/16 ,  B32B27/28 ,  B32B5/18 ,  B32B27/34 ,  H01B1/12 ,  H01M4/13 ,  C08J5/18

CPC classification number: H01M10/0565 ,  B32B5/18 ,  B32B27/281 ,  B32B27/34 ,  C08J5/18 ,  H01B1/06 ,  H01B1/122 ,  H01M2/16 ,  H01M2/1673 ,  H01M2/1686 ,  H01M4/13 ,  H01M10/0525 ,  H01M10/4235 ,  H01M2300/0082

Abstract: An ion-permeable membrane is substantially free of holes and has excellent ion permeability, heat resistance, strength, and flexibility, and can form a battery electrolyte membrane that uses the ion-permeable membrane, and an electrode composite. The polymer-ion-permeable membrane has a per-unit-thickness puncture strength of 0.3-3.0 N/μm and a membrane resistance of 3.0-100.0 Ω·cm2 at 25° C.

公开(公告)号：US12002988B2

公开(公告)日：2024-06-04

申请号：US17294874

申请日：2019-11-20

Applicant: Toray Industries, Inc.

Inventor： Nobuyasu Kai ,  Keiichi Kamon ,  Akimitsu Tsukuda

IPC: H01M50/446 ,  H01M50/443 ,  H01M50/489 ,  H01M50/491

CPC classification number: H01M50/446 ,  H01M50/443 ,  H01M50/489 ,  H01M50/491

Abstract: A low cost porous film has high thermal dimensional stability and good adhesion with electrodes and also has excellent battery characteristics. The porous film includes a porous base and a porous layer containing particles A and particles B disposed at least on one side thereof, wherein the particles A contain a polymer having at least one selected from the monomer unit group a that consists of fluorine-containing (meth)acrylate monomer units and silicon-containing monomer units whereas the particles B are inorganic particles.

公开(公告)号：US20230130427A1

公开(公告)日：2023-04-27

申请号：US17913944

申请日：2021-03-26

Applicant: Toray Industries, Inc.

Inventor： Keiichi Kamon ,  Nobuyasu Kai ,  Hiroko Tanaka ,  Akimitsu Tsukuda ,  Naoki Imazu

IPC: H01M50/446 ,  H01M10/0525

Abstract: A porous film includes a porous substrate and, on at least one surface of the porous substrate, a porous layer including inorganic particles and organic particles A, the organic particles A having adhesiveness to electrodes. The inorganic particle content in the porous layer is 50% by mass to 95% by mass. In 50 measurements of the surface elastic modulus of the porous layer, the value of α/β is 10 to 40, where α is the surface elastic modulus indicating the inorganic particles, and β is the minimum of the measured values, and the percentage of the 50 measured values that are included in the range from β to 2β is 30% to 100%.

公开(公告)号：US10950914B2

公开(公告)日：2021-03-16

申请号：US16650377

申请日：2018-09-25

Applicant: Toray Industries, Inc.

Inventor： Nobuyasu Kai ,  Kei Ikoma ,  Akimitsu Tsukuda

IPC: H01M50/446 ,  B32B27/28 ,  B32B27/34

Abstract: A porous film includes a porous substrate, and a porous layer provided on at least one surface of the porous substrate. The porous layer includes the following resin A and resin B, and satisfies that α/β is less than 1.0, where α is a surface opening ratio of the porous layer and β is a cross-sectional porosity of the porous layer. The resin A is a resin having a melting point of 150° C. or higher, or a resin having no substantial melting point. The resin B is a resin having a melting point of lower than 150° C., or an amorphous resin.