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公开(公告)号：US11621424B2
公开(公告)日：2023-04-04
申请号：US17042092
申请日：2019-04-24
Inventor： Hiroki Hayashi , Takumi Yamaguchi , Nao Matsumura , Yasuyuki Ito , Motohiro Sakata , Hideo Sakata
IPC: H01M4/133 , H01M4/137 , H01M4/1399 , H01M4/66 , H01M4/02 , H01G11/28 , H01G11/50 , H01M4/04 , H01M50/46
Abstract: An electrochemical device of the present invention includes a positive electrode, a negative electrode, and a separator disposed between the positive electrode and the negative electrode. The positive electrode includes a positive current collector containing aluminum, a positive electrode material layer containing a conductive polymer, and an aluminum oxide layer disposed on a surface of the positive current collector. The aluminum oxide layer contains fluorine.
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公开(公告)号：US11121373B2
公开(公告)日：2021-09-14
申请号：US15924289
申请日：2018-03-19
Inventor： Kiyohiro Isii , Takuma Asari , Chiho Nobumori , Yasuyuki Ito , Nao Matsumura
IPC: H01M4/60 , H01M4/137 , H01M4/1399 , H01M10/0525 , H01M10/0568 , H01M10/0585 , H01G11/06 , H01G11/48 , H01G11/50 , H01G11/86 , H01M10/0566 , H01M10/058 , H01M10/052 , H01G11/82 , H01G11/58 , H01G11/66 , H01M4/02
Abstract: A method for manufacturing an electrochemical device includes the following steps: a step of preparing a positive electrode, the positive electrode including a first current collector and a positive electrode layer containing a conductive polymer; a step of preparing a negative electrode, the negative electrode including a second current collector and a negative electrode layer; and a step of sealing the positive electrode, the negative electrode, and an electrolytic solution in an exterior body. The step of preparing the positive electrode includes a step of holding the positive electrode in depressurized atmosphere and then introducing gas containing CO2 as a primary component into the depressurized atmosphere.
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Patent Agency Ranking
公开(公告)号：US11063324B2
公开(公告)日：2021-07-13
申请号：US16120337
申请日：2018-09-03
Inventor： Shigetaka Furusawa , Yasuyuki Ito , Susumu Nomoto , Nao Matsumura
IPC: H01M50/531 , H01M4/133 , H01M4/1397 , H01M4/36 , H01M4/62 , H01M4/66 , H01G11/28 , H01G11/32 , H01G11/48 , H01G11/58 , H01G11/66 , H01G11/74 , H01G11/86 , H01G11/06 , H01M4/1393
Abstract: An electrochemical device positive electrode with a lead member includes a positive electrode and a lead member attached to the positive electrode. The positive electrode includes a positive current collector, a carbon layer, and an active layer. The carbon layer is disposed on a surface of the positive current collector, and contains a conductive carbon material. The active layer is supported by the positive current collector via the carbon layer disposed between the active layer and the positive current collector, and contains a conductive polymer. The lead member is in contact with the carbon layer.
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公开(公告)号：US09620299B2
公开(公告)日：2017-04-11
申请号：US14521262
申请日：2014-10-22
Inventor： Yasuyuki Ito
Abstract: A capacitor includes a capacitor element and an electrolyte containing a lactone compound. At least one of a positive electrode and a negative electrode of the capacitor element contains activated carbon Entire surface functional group amount D (meq/g/nm2) in an average sectional area of pores of the activated carbon is calculated at 0.152 or less by the following equation: D=F/S where F represents an entire surface functional group amount per unit weight (meq/g) of the activated carbon, and S represents an area (nm2) of a circle of which diameter is an average diameter of the pores of the activated carbon.
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公开(公告)号：US09997300B2
公开(公告)日：2018-06-12
申请号：US15202584
申请日：2016-07-06
Inventor： Yasuyuki Ito , Hiroyuki Yanagisawa , Koichi Morikawa , Eri Hirose , Nao Matsumura , Mitsuhiro Fujita
CPC classification number: H01G11/26 , H01G11/24 , H01G11/28 , H01G11/38 , H01G11/42 , H01G11/68 , Y02E60/13
Abstract: A capacitor electrode includes a substrate having electrical conductivity, a conductive layer formed on a surface of the substrate, and an electrode layer formed on the conductive layer. The electrode layer is allowed to adsorb and desorb ions on a surface thereof. The conductive layer contains flake graphite. A density of the conductive layer is greater than 1.1 g/cm3. An average particle size D50 of the flake graphite, which is measured by using a dynamic light scattering method, is less than or equal to 10 μm.
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公开(公告)号：US10923296B2
公开(公告)日：2021-02-16
申请号：US16115568
申请日：2018-08-29
Inventor： Tougo Endou , Yasuyuki Ito , Susumu Nomoto , Nao Matsumura , Hiroki Hayashi , Makoto Akutsu
IPC: H01G11/86 , H01M2/26 , H01M4/1399 , H01M10/0585 , H01M10/0587 , H01M4/66 , H01M4/02
Abstract: A method for manufacturing a positive electrode for a power storage device includes the steps of: preparing a current collector that includes a first region and a second region on a surface of the current collector, the first region having a carbon layer formed on the surface, the second region having the surface exposed; and forming a conductive polymer layer selectively on a surface of the carbon layer by immersing the current collector in an electrolytic solution containing a raw material monomer and then conducting electrolytic polymerization of the raw material monomer.
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公开(公告)号：US10431394B2
公开(公告)日：2019-10-01
申请号：US15381844
申请日：2016-12-16
Inventor： Eri Hirose , Mitsuhiro Fujita , Hiroyuki Yanagisawa , Yasuyuki Ito
Abstract: An object of the present invention is to provide a capacitor excellent in reliability, of which charge-discharge characteristics are hardly deteriorated. The capacitor of the present invention includes: a capacitor element including a positive electrode and a negative electrode; and a case that stores the capacitor element together with an electrolytic solution, wherein at least one of the positive electrode and the negative electrode contains activated carbon, and a sum of volumes per unit weight of pores having a pore diameter of from 30 Å to 100 Å inclusive among pores of the activated carbon is 0.2 cm3/g or more.
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