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公开(公告)号：US20190383283A1
公开(公告)日：2019-12-19
申请号：US16418327
申请日：2019-05-21
Inventor： KUNIHIRO UKAI , NORIHIKO KAWABATA , OSAMU SAKAI , HIDENOBU WAKITA , JIN ZHANG , YUKIMUNE KANI
IPC: F04B45/047
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：US20190173114A1
公开(公告)日：2019-06-06
申请号：US16198271
申请日：2018-11-21
Inventor： OSAMU SAKAI , KUNIHIRO UKAI , HIDENOBU WAKITA
IPC: H01M8/0662 , B01D53/22 , C01B3/50 , B01D53/32 , H01M8/04082 , H01M8/04119
CPC classification number: H01M8/0681 , B01D53/22 , B01D53/326 , B01D2256/16 , C01B3/503 , C25B9/10 , C25B15/02 , C25B15/08 , H01M8/04126 , H01M8/04164 , H01M8/04201
Abstract: A hydrogen supply system includes an electrochemical hydrogen pump which includes: an electrolyte membrane; an anode provided on a first surface of the electrolyte membrane; a cathode provided on a second surface of the electrolyte membrane opposite to the first surface; and a current adjuster adjusting a current amount flowing between the anode and the cathode, and which performs a hydrogen supply operation by allowing a current to flow between the anode and the cathode using the current adjuster so as to boost the pressure of hydrogen which is supplied to an anode side at a cathode side and to supply the pressure-boosted hydrogen to a hydrogen demander; and a dew point adjuster adjusting a dew point of a mixed gas in which a hydrogen-containing gas which is discharged from the anode side and a hydrogen-containing gas which is supplied from an outside are mixed together.
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公开(公告)号：US20170054170A1
公开(公告)日：2017-02-23
申请号：US15226114
申请日：2016-08-02
Inventor： HIDENOBU WAKITA , YASUHIKO ITOH , ATSUO OKAICHI , OSAMU SAKAI
IPC: H01M8/0662 , H01M8/0612
CPC classification number: H01M8/0681 , B01D53/326 , B01D2256/16 , C01B3/384 , C01B3/48 , C01B2203/0233 , C01B2203/0283 , C01B2203/044 , C01B2203/0445 , C01B2203/047 , C01B2203/066 , C01B2203/0811 , H01M8/0618 , Y02P20/52
Abstract: A hydrogen purifier includes an electrolyte membrane including a proton conductive polymer, an anode having an anode catalyst layer disposed on one side of the electrolyte membrane, a cathode having a cathode catalyst layer disposed on the other side of the electrolyte membrane, a separator which has a fluid channel and through which carbon monoxide, hydrogen and oxygen are supplied to the anode, and a power supply that energizes the anode and the cathode, the anode catalyst layer including Pt, the cathode catalyst layer including Pt and Ru.
Abstract translation: 氢净化器包括电解质膜，该电解质膜包括质子传导性聚合物，具有设置在电解质膜的一侧的阳极催化剂层的阳极，具有设置在电解质膜的另一侧的阴极催化剂层的阴极， 向阳极提供一氧化碳，氢和氧的流体通道，以及使阳极和阴极通电的电源，包括Pt的阳极催化剂层，包括Pt和Ru的阴极催化剂层。
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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：US20240011174A1
公开(公告)日：2024-01-11
申请号：US18472299
申请日：2023-09-22
Inventor： TAKASHI KAKUWA , OSAMU SAKAI , HIROMI KITA
IPC: C25B15/021 , C25B1/04 , C25B9/05
CPC classification number: C25B15/021 , C25B1/04 , C25B9/05
Abstract: A compressor device includes: a compressor that causes, by applying a voltage between an anode and a cathode, hydrogen in an anode gas to move through an electrolyte membrane to the cathode and compresses the hydrogen; a regulator that regulates the temperature of the anode gas in the compressor; and a controller that controls the regulator to regulate the temperature of the anode gas at an outlet of the anode based on at least one of the pressure of a cathode gas or a current flowing between the anode and the cathode under the application of the voltage.
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Patent Agency Ranking
公开(公告)号：US20230313788A1
公开(公告)日：2023-10-05
申请号：US18302092
申请日：2023-04-18
Inventor： TAKASHI KAKUWA , HIROMI KITA , OSAMU SAKAI
IPC: F04B17/00
CPC classification number: F04B17/00
Abstract: A compression apparatus includes at least one compression unit, a voltage applier, an anode end plate provided on an anode separator located at a first end in a direction of stacking, a cathode end plate provided on a cathode separator located at a second end in the direction of stacking, a first seal material that surrounds an outer periphery of the cathode, and a second seal material that surrounds an outer periphery of a first space in which to store compressed hydrogen, the first space being provided between the cathode end plate and the cathode separator located at the second end. 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 produces compressed hydrogen. An area of a region surrounded by the second seal material is larger than an area of a region surrounded by the first seal material.
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公开(公告)号：US20210310137A1
公开(公告)日：2021-10-07
申请号：US17346423
申请日：2021-06-14
Inventor： TAKASHI KAKUWA , HIROMI KITA , OSAMU SAKAI
Abstract: A compression apparatus includes an electrolyte membrane, an anode on a principal surface of the electrolyte membrane, a cathode on another principal surface of the electrolyte membrane, an anode separator on the anode, a cathode separator on the cathode, and a voltage applicator. Upon the voltage applicator applying a voltage between the anode and the cathode, protons are extracted from an anode fluid fed to the anode to migrate to the cathode through the electrolyte membrane and compressed hydrogen is produced. The cathode separator has a first O-ring groove formed in a cathode-side principal surface of the cathode separator to surround a region of the cathode-side principal surface which faces the cathode. The compression apparatus includes a first O-ring held by the first O-ring groove and a face seal disposed on an outer periphery of a region of an anode-side principal surface of the anode separator which faces the anode.
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公开(公告)号：US20170338505A1
公开(公告)日：2017-11-23
申请号：US15590859
申请日：2017-05-09
Inventor： OSAMU SAKAI , KUNIHIRO UKAI , YASUSHI KANEKO , SHIGENORI ONUMA , TAKASHI KAKUWA
IPC: H01M8/1231 , H01M8/04007 , H01M8/04014 , H01M8/04082 , H01M8/0612 , H01M8/1233 , H01M8/124
CPC classification number: H01M8/0618 , C01B3/06 , H01M8/04022 , H01M8/04074 , H01M8/0662 , H01M2008/1293
Abstract: A high-temperature fuel cell system includes a fuel cell that includes an anode and a cathode and that generates power by using a fuel gas and an oxidant gas, a fuel-gas path along which the fuel gas flows, an oxidant-gas path along which the oxidant gas flows, an anode-off-gas path along which an anode off-gas flows, a cathode-off-gas path along which a cathode off-gas flows, a combustion space in communication with the anode-off-gas path and the cathode-off-gas path and in which the anode off-gas and the cathode off-gas are burned, a flue-gas path along which a flue gas flows, a cathode-off-gas branch portion disposed on the cathode-off-gas path between the combustion space and the cathode and at which some of the cathode off-gas is branched from the cathode-off-gas path, and a first heat exchanger that enables heat exchange between the oxidant gas, the flue gas, and the cathode off-gas.
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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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公开(公告)号：US20240280093A1
公开(公告)日：2024-08-22
申请号：US18635077
申请日：2024-04-15
Inventor： OSAMU SAKAI , TAKASHI KAKUWA , TAKAYUKI NAKAUE
IPC: F04B35/00
CPC classification number: F04B35/00
Abstract: A compression apparatus includes an electrolyte membrane, an anode disposed on a principal surface of the electrolyte membrane, a cathode disposed on another principal surface of the electrolyte membrane, and a voltage applicator that applies a voltage between the anode and the cathode. Upon the voltage applicator applying a voltage between the anode and the cathode, the compression apparatus causes protons extracted from an anode fluid fed to the anode to move to the cathode through the electrolyte membrane and produces compressed hydrogen. The compression apparatus includes a face seal disposed on an outer periphery of the anode and an elastic material interposed between the anode and the face seal.
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