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公开(公告)号：US12203178B2
公开(公告)日：2025-01-21
申请号：US18598841
申请日：2024-03-07
Inventor： Kunihiro Ukai , Norihiko Kawabata , Osamu Sakai , Hidenobu Wakita , Jin Zhang , Yukimune Kani
Abstract: An electrochemical hydrogen pump includes at least one hydrogen pump unit including an electrolyte membrane, an anode on one main surface of the electrolyte membrane, a cathode on the other main surface of the electrolyte membrane, an anode separator on the anode, and a cathode separator on the cathode, the at least one hydrogen pump unit transferring, to the cathode, hydrogen supplied to the anode and pressurizing the hydrogen, a first fixing member for preventing movement of the cathode separator in a direction in which the cathode separator is stacked, a first end plate on the anode separator at one end in the stacking direction, a second end plate on the cathode separator at the other end in the stacking direction, and a first gas flow channel through which hydrogen in the cathode is supplied to a first space between the second end plate and the cathode separator.
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Patent Agency Ranking
公开(公告)号：US11952671B2
公开(公告)日：2024-04-09
申请号：US16418327
申请日：2019-05-21
Inventor： Kunihiro Ukai , Norihiko Kawabata , Osamu Sakai , Hidenobu Wakita , Jin Zhang , Yukimune Kani
CPC classification number: C25B1/02 , B01D53/326
Abstract: An electrochemical hydrogen pump includes at least one hydrogen pump unit including an electrolyte membrane, an anode on one main surface of the electrolyte membrane, a cathode on the other main surface of the electrolyte membrane, an anode separator on the anode, and a cathode separator on the cathode, the at least one hydrogen pump unit transferring, to the cathode, hydrogen supplied to the anode and pressurizing the hydrogen, a first fixing member for preventing movement of the cathode separator in a direction in which the cathode separator is stacked, a first end plate on the anode separator at one end in the stacking direction, a second end plate on the cathode separator at the other end in the stacking direction, and a first gas flow channel through which hydrogen in the cathode is supplied to a first space between the second end plate and the cathode separator.
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公开(公告)号：US11549187B2
公开(公告)日：2023-01-10
申请号：US16591570
申请日：2019-10-02
Inventor： Kunihiro Ukai , Tsuneyuki Ejima , Norihiko Kawabata
IPC: C25B9/05 , F04B45/047 , C25B1/04 , B01D53/32 , H01M8/026 , H01M8/248 , H01M8/0662
Abstract: An electrochemical hydrogen pump includes: at least one hydrogen pump unit including an electrolyte membrane, an anode, a cathode, an anode separator, and a cathode separator; an anode end plate disposed on the anode separator positioned in a first end in a stacking direction, the first end is one end and the second end is another end; a cathode end plate disposed on the cathode separator positioned in a second end in the stacking direction; a fixing member that prevents at least members from the cathode end plate to the cathode separator positioned in the second end from moving in the stacking direction; a first gas flow channel through which hydrogen generated in the cathode is supplied to a first space disposed between the cathode end plate and the cathode separator positioned in the second end; and a first pressure transmitting member disposed in the first space.
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公开(公告)号：US11239482B2
公开(公告)日：2022-02-01
申请号：US16542296
申请日：2019-08-15
Inventor： Shuji Ito , Masahisa Fujimoto , Haruko Kubota , Norihiko Kawabata
IPC: H01M8/18 , H01M8/04186
Abstract: The flow battery in an aspect of the present disclosure includes a first liquid containing a lithium ion and a first redox material, a first electrode in contact with the first liquid, a second electrode functioning as a counter electrode of the first electrode, an isolation unit that isolates the first electrode and the second electrode from each other, a first chamber, and a first circulation mechanism for circulating the first liquid between the first electrode and the first chamber, and in the flow battery, the first liquid is non-aqueous and the first circulation mechanism includes a magnetically driven pump.
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公开(公告)号：US09937465B2
公开(公告)日：2018-04-10
申请号：US15131767
申请日：2016-04-18
Inventor： Norihiko Kawabata , Kazuya Ushirokawa , Yasuhiro Ueyama , Shinji Yoshino , Reiko Taniguchi
Abstract: A gas-producing apparatus that produces hydrogen or oxygen, includes: an electrolysis cell that produces hydrogen and oxygen through electrolysis of water; and a gas-liquid separation device that is connected to the electrolysis cell and that receives the water and the hydrogen or the oxygen, wherein the gas-liquid separation device includes a first chamber and a second chamber, the first chamber and the second chamber are separated by a partition wall, and a lower part of the first chamber and a lower part of the second chamber communicate with one another.
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公开(公告)号：US10202696B2
公开(公告)日：2019-02-12
申请号：US15497184
申请日：2017-04-25
Inventor： Norihiko Kawabata , Kazuya Usirokawa , Shinji Yoshino , Hidenobu Wakita
IPC: H01M8/06 , H01M8/04 , C25B1/02 , C25B9/18 , B01D53/22 , B01D63/00 , H01M8/04082 , H01M8/0612 , B01D53/32 , H01M8/0662
Abstract: Provided is an electromechanical hydrogen pump, including: (i) an electrolyte membrane; (ii) an anode electrode layer and an anode diffusion layer that are provided at one side of the electrolyte membrane; (iii) a cathode electrode layer and a cathode diffusion layer that are provided at the other side of the electrolyte membrane; (iv) an anode seal that has openings each surrounding the anode diffusion layer; (v) a cathode seal that has openings each surrounding the cathode diffusion layer; (vi) an anode separator that is placed on an outer side of the anode diffusion layer; and (vii) a cathode separator that is placed on an outer side of the cathode diffusion layer, wherein no spaces are provided between the anode diffusion layer and the anode seal or between the cathode diffusion layer and the cathode seal.
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