公开(公告)号：US20240431126A1

公开(公告)日：2024-12-26

申请号：US18684247

申请日：2022-07-08

Applicant: JFE Steel Corporation

Inventor： Hikaru Kobayashi ,  Mikito Suto ,  Yusuke Fushiwaki ,  Akira Matsuzaki

IPC: H10K30/82 ,  H10K30/57 ,  H10K30/85 ,  H10K30/86 ,  H10K71/50

Abstract: A laminate including a member that serves as a light-transmissive electrode layer and a zinc oxide layer that serves as an electron transport layer for an organic thin-film solar cell is provided. The zinc oxide layer has a Zn deposition amount of not less than 20.0 mg/m2 and not more than 120.0 mg/m2. An S value represented by Formula (1) is not more than 0.90 when, in the zinc oxide layer, an oxygen 1s spectrum obtained by X-ray photoelectron spectroscopy is separated into three peaks, an area of a peak in which a binding energy of a peak top is in a range of not less than 529.0 eV and less than 530.7 eV is represented by α, and an area of a peak in which a binding energy of a peak top is in a range of not less than 530.7 eV and less than 532.2 eV is represented as β: S = β / ( α + β ) . ( 1 )

公开(公告)号：US11926921B2

公开(公告)日：2024-03-12

申请号：US17594502

申请日：2020-02-18

Applicant: JFE STEEL CORPORATION

Inventor： Takashi Ueno ,  Mikito Suto ,  Yoichiro Yamanaka

IPC: C25D9/06 ,  C23C28/00 ,  C25D9/08

CPC classification number: C25D9/08 ,  C23C28/32 ,  C25D9/06

Abstract: A method of producing a surface-treated steel sheet, comprising: subjecting a steel sheet having a Sn coating or plating layer to an anodic electrolytic treatment in an alkaline aqueous solution to form a Sn oxide layer; and then subjecting the steel sheet to a cathodic electrolytic treatment in an aqueous solution containing zirconium ions to form a layer containing zirconium oxide, wherein the Sn coating or plating layer has a Sn coating weight of 0.1 g/m2 to 20.0 g/m2, the Sn oxide layer has, at a point in time when the Sn oxide layer is formed, a reduction current peak within a potential range of −800 mV to −600 mV and an electric quantity of a reduction current in the potential range of 1.5 mC/cm2 to 10.0 mC/cm2, and the layer containing zirconium oxide has a Zr coating weight of 0.1 mg/m2 to 50.0 mg/m2.

公开(公告)号：US10914016B2

公开(公告)日：2021-02-09

申请号：US16060206

申请日：2016-12-01

Applicant: JFE Steel Corporation

Inventor： Yusuke Nakagawa ,  Takeshi Suzuki ,  Mikito Suto ,  Katsumi Kojima ,  Yuya Baba

IPC: C25D5/14 ,  C25D11/38 ,  C25D3/04 ,  C25F3/08 ,  C25D7/06 ,  C23C28/00 ,  C25D5/16

Abstract: A steel sheet for cans has, on the surface thereof, in order from the steel sheet side, a chromium metal layer and a hydrous chromium oxide layer. The chromium metal layer is deposited in an amount of 50-200 mg/m2, and the hydrous chromium oxide layer is deposited in an amount of 3-15 mg/m2 in terms of chromium. The chromium metal layer includes: a flat chromium metal layer that has a thickness of at least 7 nm; and a granular chromium metal layer that includes granular protrusions that are formed on the surface of the flat chromium metal layer. The maximum grain size of the granular protrusions is 150 nm or smaller. The number density of the granular protrusions per unit area is 10/μm2 or higher.

公开(公告)号：US11946121B2

公开(公告)日：2024-04-02

申请号：US16633009

申请日：2018-07-18

Applicant: JFE Steel Corporation

Inventor： Mikito Suto ,  Yoichiro Yamanaka ,  Kiyoshi Tachibana

IPC: H01M50/124 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/08 ,  C22C38/12 ,  C22C38/26 ,  H01M50/119 ,  H01M50/128 ,  H01M50/133

CPC classification number: C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/08 ,  C22C38/12 ,  C22C38/26 ,  H01M50/119 ,  H01M50/124 ,  H01M50/128 ,  H01M50/133

Abstract: Provided are a steel sheet for battery outer tube cans, which is used for an aftergilding method and is suppressed in the occurrence of scratches, and which enables the achievement of a battery outer tube can that has excellent corrosion resistance and buckling resistance; and a battery outer tube can and a battery, each of which uses this steel sheet for battery outer tube cans. This steel sheet for battery outer tube cans has an Fe—Ni diffusion layer on both surface layers of a steel sheet; the Nb content in the steel sheet is from 0.010% by mass to 0.050% by mass (inclusive); and the adhesion amount of the Fe—Ni diffusion layer per one surface of the steel sheet is from 50 mg/m2 to 500 mg/m2 (inclusive) in terms of Ni.

公开(公告)号：US20230290934A1

公开(公告)日：2023-09-14

申请号：US18032629

申请日：2022-07-28

Applicant: JFE CHEMICAL CORPORATION ,  JFE STEEL CORPORATION

Inventor： Mikito Suto ,  Yusuke Fushiwaki ,  Akira Matsuzaki ,  Ryota Yamaji ,  Ryuta Haga

IPC: H01M4/36 ,  H01M10/0525 ,  H01M4/133 ,  H01M4/587 ,  C01B32/21

CPC classification number: H01M4/366 ,  H01M10/0525 ,  H01M4/133 ,  H01M4/587 ,  C01B32/21 ,  H01M2004/027

Abstract: Provided is carbonaceous substance-coated graphite particles that exhibit excellent battery properties when used as a negative electrode material for a lithium ion secondary battery. The carbonaceous substance-coated graphite particles includes: graphite particles; and carbonaceous coatings covering at least part of surfaces of the graphite particles, and the carbonaceous substance-coated graphite particles have a specific surface area SBET determined by BET method of 4.0 to 15.0 m2/g, and a pore volume Vs of pores with a pore size of 7.8 to 36.0 nm is 0.001 to 0.026 cm3/g, and in a pore size distribution graph with the pore size being plotted on a horizontal axis and a dV/dP value obtained by differentiating the pore volume with the pore size being plotted on a vertical axis, a pore size Pmax with which the dV/dP value is maximized is 2.5 to 5.5 nm.

公开(公告)号：US20230290933A1

公开(公告)日：2023-09-14

申请号：US18031056

申请日：2022-07-28

Applicant: JFE CHEMICAL CORPORATION ,  JFE STEEL CORPORATION

Inventor： Mikito Suto ,  Yusuke Fushiwaki ,  Akira Matsuzaki ,  Ryota Yamaji ,  Ryuta Haga

IPC: H01M4/36 ,  H01M10/0525 ,  H01M4/133 ,  H01M4/587 ,  C01B32/21

CPC classification number: H01M4/366 ,  H01M10/0525 ,  H01M4/133 ,  H01M4/587 ,  C01B32/21 ,  H01M2004/021

Abstract: Provided are carbonaceous substance-coated graphite particles that include: graphite particles; and carbonaceous coatings covering at least part of surfaces of the graphite particles, the carbonaceous substance-coated graphite particles have a maximum particle diameter of 30.0 to 90.0 μm, a pore volume Vs of pores with a pore size of 7.8 to 36.0 nm is 0.009 to 0.164 cm3/g, and in a pore size distribution graph with the pore size being plotted on a horizontal axis and a dV/dP value obtained by differentiating the pore volume with the pore size being plotted on a vertical axis, a pore size Pmax with which the dV/dP value is maximized is 2.5 to 5.5 nm.

公开(公告)号：US20180355496A1

公开(公告)日：2018-12-13

申请号：US16061079

申请日：2016-12-01

Applicant: JFE Steel Corporation

Inventor： Yusuke Nakagawa ,  Takeshi Suzuki ,  Mikito Suto ,  Katsumi Kojima ,  Yuya Baba

IPC: C25D3/04 ,  C25D5/14 ,  C25D5/16 ,  C25D9/10 ,  C23C28/00 ,  C25D7/04

Abstract: A steel sheet for cans has, on the surface thereof, in order from the steel sheet side, a chromium metal layer and a hydrous chromium oxide layer. The chromium metal layer is deposited in an amount of 65-200 mg/m2, and the hydrous chromium oxide layer is deposited in an amount of 3-15 mg/m2 in terms of chromium. The chromium metal layer includes: a flat chromium metal layer that has a thickness of at least 7 nm; and a granular chromium metal layer that includes granular protrusions that are formed on the surface of the flat chromium metal layer. The maximum grain size of the granular protrusions is 100 nm or smaller. The number density of the granular protrusions per unit area is 10/μm2 or higher.

公开(公告)号：US11804594B2

公开(公告)日：2023-10-31

申请号：US18032629

申请日：2022-07-28

Applicant: JFE CHEMICAL CORPORATION ,  JFE STEEL CORPORATION

Inventor： Mikito Suto ,  Yusuke Fushiwaki ,  Akira Matsuzaki ,  Ryota Yamaji ,  Ryuta Haga

IPC: H01M4/36 ,  H01M10/0525 ,  H01M4/133 ,  H01M4/587 ,  C01B32/21 ,  H01M4/02

CPC classification number: H01M4/366 ,  C01B32/21 ,  H01M4/133 ,  H01M4/587 ,  H01M10/0525 ,  C01P2004/84 ,  C01P2006/12 ,  C01P2006/14 ,  C01P2006/16 ,  C01P2006/40 ,  H01M2004/021 ,  H01M2004/027

Abstract: Provided is carbonaceous substance-coated graphite particles that exhibit excellent battery properties when used as a negative electrode material for a lithium ion secondary battery. The carbonaceous substance-coated graphite particles includes: graphite particles; and carbonaceous coatings covering at least part of surfaces of the graphite particles, and the carbonaceous substance-coated graphite particles have a specific surface area SBET determined by BET method of 4.0 to 15.0 m2/g, and a pore volume Vs of pores with a pore size of 7.8 to 36.0 nm is 0.001 to 0.026 cm3/g, and in a pore size distribution graph with the pore size being plotted on a horizontal axis and a dV/dP value obtained by differentiating the pore volume with the pore size being plotted on a vertical axis, a pore size Pmax with which the dV/dP value is maximized is 2.5 to 5.5 nm.

公开(公告)号：US20230286806A1

公开(公告)日：2023-09-14

申请号：US18030097

申请日：2022-07-28

Applicant: JFE CHEMICAL CORPORATION ,  JFE STEEL CORPORATION

Inventor： Ryota Yamaji ,  Yasushi Madokoro ,  Akira Matsuzaki ,  Yusuke Fushiwaki ,  Mikito Suto

IPC: C01B32/21 ,  H01M10/0525 ,  H01M4/583 ,  H01M4/36

CPC classification number: C01B32/21 ,  H01M10/0525 ,  H01M4/583 ,  H01M4/366 ,  H01M2004/027

Abstract: Provided is spherically-shaped coated graphite exhibiting excellent cycle capacity-maintaining property when used as a negative electrode material for a lithium ion secondary battery. The spherically-shaped coated graphite includes: spherically-shaped graphite in which primary particles with an equivalent spherical diameter of not more than 0.8 μm have a volume ratio of more than 40.0% and not more than 70.0%, and primary particles with an equivalent spherical diameter of not less than 1.5 μm and not more than 3.0 μm have a volume ratio of not less than 3.0% and not more than 17.0%, in a particle size distribution of primary particles obtained using X-ray computed tomography; and a carbonaceous substance covering the spherically-shaped graphite, and a pore volume of pores with a pore size of 7.8 nm to 36.0 nm is not more than 0.017 cm3/g, and a mass of infiltrated dibutyl phthalate is less than 0.70 g/cm3.

公开(公告)号：US11683944B2

公开(公告)日：2023-06-20

申请号：US17760631

申请日：2020-09-28

Applicant: JFE Steel Corporation ,  NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITY

Inventor： Mikito Suto ,  Hiroyuki Masuoka ,  Akira Matsuzaki ,  Hiroki Habazaki ,  Hikaru Kobayashi

IPC: H01L31/00 ,  H10K30/82 ,  H10K30/30 ,  H10K30/40 ,  H10K71/60 ,  H10K102/10

CPC classification number: H10K30/82 ,  H10K30/30 ,  H10K30/40 ,  H10K71/60 ,  H10K2102/101

Abstract: A laminate which allows to obtain an organic thin-film solar cell having excellent output characteristics and transparency is provided. The laminate as above has a titanium oxide layer that is disposed on the member serving as a light-transmissive electrode layer and serves as an electron transport layer. The titanium oxide layer has a thickness of not less than 1.0 nm and not more than 200.0 nm. The titanium oxide layer contains indium oxide and metallic indium, InOx/Ti is not less than 0.50 and not more than 20.00 in atomic ratio, and InM/Ti is less than 0.100 in atomic ratio, where an elemental titanium content is represented by Ti, an indium oxide content is represented by InOx, and a metallic indium content is represented by InM.