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公开(公告)号：US20250075344A1
公开(公告)日：2025-03-06
申请号：US18953622
申请日：2024-11-20
Inventor： MISA YOROZUYA , TAKAYUKI NAKAUE , OSAMU SAKAI , YUKIMUNE KANI
IPC: C25B9/05 , C25B1/04 , C25B11/032 , C25B15/023
Abstract: A compression apparatus according to an aspect of the present disclosure includes: a compressor that generates compressed hydrogen at a cathode by an electrolysis of water or by oxidation and reduction of hydrogen generated by applying a voltage between an anode and the cathode having flexural rigidity lower than flexural rigidity of the anode; and a controller that, in startup or in shutdown, determines an abnormality based on a gas flow rate at an exit of the anode or a pressure at the cathode after supplying a testing gas from a testing gas supplier to the cathode.
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公开(公告)号：US20160344054A1
公开(公告)日：2016-11-24
申请号：US15150318
申请日：2016-05-09
Inventor： TOMOYA KAMATA , TOMOHIRO KUROHA , YUKIMUNE KANI , HIROSHIGE MATSUMOTO
IPC: H01M8/1253 , C01G25/00
CPC classification number: H01M8/1253 , C01G25/006 , C04B35/486 , C04B35/6262 , C04B35/62655 , C04B35/62675 , C04B35/62695 , C04B35/638 , C04B35/645 , C04B2235/3215 , C04B2235/3225 , C04B2235/3286 , C04B2235/443 , C04B2235/449 , C04B2235/604 , C04B2235/768 , C04B2235/785 , C04B2235/786 , C04B2235/79 , H01B1/122 , H01M2008/1293 , H01M2300/0077 , Y02E60/525 , Y02P70/56
Abstract: A proton conductor is a proton conductor represented by a composition formula of BaZr1-x-yYxInyO3, and x and y in the composition formula satisfy 0
Abstract translation: 质子导体是由组成式BaZr1-x-yYxInyO3表示的质子导体，组成式中的x和y满足0
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公开(公告)号：US20240318339A1
公开(公告)日：2024-09-26
申请号：US18733054
申请日：2024-06-04
Inventor： TAKAYUKI NAKAUE , OSAMU SAKAI , HIROMI KITA , YUKIMUNE KANI
CPC classification number: C25B15/083 , C25B1/04 , C25B9/19 , C25B9/75
Abstract: A compression apparatus includes at least one compression unit, an anode end plate provided on an anode separator, a cathode end plate provided on a cathode separator, and a plate-like member. The compression apparatus causes, by using the voltage applier to apply a voltage, protons taken out from an anode fluid that is supplied to the anode to move to the cathode via the electrolyte membrane and generates compressed hydrogen. The plate-like member is provided with a recess in which to store the compressed hydrogen and a groove portion that surrounds an outer periphery of the recess. The groove portion is provided with a seal material and a ring material that is adjacent to an outer edge of the seal material and that surrounds the seal material. An outer peripheral surface of the groove portion and an outer peripheral surface of the ring material are both provided with gradients so as to become wider toward an opening of the groove portion.
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公开(公告)号：US20230078714A1
公开(公告)日：2023-03-16
申请号：US18053390
申请日：2022-11-08
Inventor： TOMOYA KAMATA , TAKAYUKI NAKAUE , YUKIMUNE KANI
Abstract: A hydrogen system includes: a compressor that includes an anode, a cathode, and an electrolyte membrane interposed therebetween and generates compressed hydrogen by applying a voltage between the anode and the cathode to move protons extracted from anode fluid supplied to the anode to the cathode; a voltage applicator that applies the voltage between the anode and the cathode; a first flow passage through which a cathode off-gas containing the compressed hydrogen discharged from the cathode is supplied to the anode of the compressor; a first on-off valve disposed in the first flow passage; and a controller that causes the voltage applicator to apply the voltage with the first on-off valve opened during a period of time from startup of the hydrogen system until supply of the cathode off-gas to a hydrogen reservoir is started.
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公开(公告)号：US20210408570A1
公开(公告)日：2021-12-30
申请号：US17471726
申请日：2021-09-10
Inventor： OSAMU SAKAI , YUKIMUNE KANI , TAKASHI KAKUWA , HIROMI KITA , TOMOYA KAMATA , TAKAYUKI NAKAUE
IPC: H01M8/248 , H01M8/0438 , H01M8/0656 , H01M8/1004
Abstract: A compression apparatus includes a stack of electrochemical cells each including an anode, a cathode, and an electrolyte membrane interposed therebetween, a pair of insulating plates disposed at respective ends of the stack in a stacking direction, a pair of end plates disposed on outside surfaces of the respective insulating plates, and a voltage applicator that applies a voltage between the anode and the cathode. The end plate having the cathode gas channel includes a first region that includes an outer peripheral surface of the cathode gas channel and is composed of a first steel material and a second region other than the first region which is composed of a second steel material. The first steel material has higher hydrogen embrittlement resistance than the second steel material, and the second steel material has higher stiffness than the first steel material.
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Patent Agency Ranking
公开(公告)号：US20240301570A1
公开(公告)日：2024-09-12
申请号：US18661344
申请日：2024-05-10
Inventor： TAKAYUKI NAKAUE , OSAMU SAKAI , YUKIMUNE KANI
Abstract: A compression device includes: an electrochemical cell that includes an anode and a cathode that sandwich an electrolyte membrane; a voltage application unit that applies a voltage between the anode and the cathode; and a metal plate that is exposed to compressed hydrogen generated at the cathode and that is resistant to hydrogen embrittlement. The metal plate includes a first terminal connected to the voltage application unit. The first terminal is directly connected to a second terminal that has a lower resistance than the first terminal. The second terminal is directly connected to the voltage application unit, and the first terminal is connected to the voltage application unit via the second terminal.
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公开(公告)号：US20240060190A1
公开(公告)日：2024-02-22
申请号：US18500159
申请日：2023-11-02
Inventor： TAKAYUKI NAKAUE , TAKASHI KAKUWA , OSAMU SAKAI , YUKIMUNE KANI
IPC: C25B1/02 , C25B9/19 , C25B11/032 , C25B11/052
CPC classification number: C25B1/02 , C25B9/19 , C25B11/032 , C25B11/052
Abstract: An electrochemical cell for a hydrogen pump includes an electrolyte membrane, an anode catalyst layer disposed on a first main surface of the electrolyte membrane, a cathode catalyst layer disposed on a second main surface of the electrolyte membrane, an anode gas diffusion layer disposed on the anode catalyst layer, and a cathode gas diffusion layer disposed on the cathode catalyst layer. When a voltage is applied between the anode catalyst layer and the cathode catalyst layer, the cathode gas diffusion layer is exposed to a hydrogen-containing gas at a pressure higher than that at the anode gas diffusion layer. A thickness of the anode gas diffusion layer is greater than or equal to a thickness of the cathode gas diffusion layer.
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公开(公告)号：US20230327156A1
公开(公告)日：2023-10-12
申请号：US18333605
申请日：2023-06-13
Inventor： TOMOYA KAMATA , SHIGENORI ONUMA , YUKIMUNE KANI
IPC: H01M8/04858 , H01M8/04537 , H01M50/46 , H01M8/04089
CPC classification number: H01M8/04888 , H01M8/04089 , H01M50/46 , H01M8/04567
Abstract: A compressor includes at least one cell that includes an electrolyte membrane, an anode located on one main surface of the electrolyte membrane, and a cathode located on the other main surface of the electrolyte membrane; a metallic anode separator located on the anode; a cathode separator located on the cathode; and a voltage application unit for applying a voltage between the anode and the cathode, wherein the compressor causes, by using the voltage applier to apply a voltage, a proton extracted from an anode fluid supplied to the anode to move to the cathode and generates compressed hydrogen, and the compressor includes a controller for causing the voltage application unit to apply the voltage such that a voltage applied per unit cell is lower than a corrosion potential of the metallic anode separator.
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公开(公告)号：US20220025529A1
公开(公告)日：2022-01-27
申请号：US17498314
申请日：2021-10-11
Inventor： TOMOYA KAMATA , YUKIMUNE KANI
IPC: C25B9/65 , C25B13/00 , C25B9/19 , C25B15/021 , C25B1/02
Abstract: An electrochemical hydrogen pump according to the present disclosure includes: a cell including an electrolyte membrane, an anode disposed on a first main surface of the electrolyte membrane, and a cathode disposed on a second main surface of the electrolyte membrane; a voltage applicator applying a voltage between the anode and the cathode, the voltage applicator applying the voltage to cause the electrochemical hydrogen pump to transfer hydrogen in hydrogen-containing gas supplied to the anode to the cathode and to pressurize the hydrogen; and a controller, when at least one selected from the group consisting of a dew point of the hydrogen-containing gas supplied to the anode and a temperature of the cell is increased, controlling the voltage applied by the voltage applicator to increase a current flowing between the anode and the cathode.
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公开(公告)号：US20240318668A1
公开(公告)日：2024-09-26
申请号：US18733041
申请日：2024-06-04
Inventor： TAKAYUKI NAKAUE , HIROMI KITA , OSAMU SAKAI , YUKIMUNE KANI
Abstract: A compressor includes a stack of electrochemical cells each including an anode, a cathode, and an electrolyte membrane sandwiched therebetween, an end plate at an end in a stacking direction of the stack, and a voltage applicator that applies a voltage between the anode and the cathode, wherein, the compressor causes, by using the voltage applicator to apply the voltage, hydrogen in a hydrogen-containing gas fed to the anode to move to the cathode and produces compressed hydrogen, the end plate has a first channel through which a heating medium flows, the stack has a second channel extending therethrough and connected to the first channel, the first channel has a smaller cross-sectional area than the second channel and includes an annular channel and a transverse passage extending across the annular channel, and an external channel disposed outside the stack and through which the heating medium flows is connected to the transverse passage.
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