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公开(公告)号:US20240017210A1
公开(公告)日:2024-01-18
申请号:US18472297
申请日:2023-09-22
Inventor: TAKASHI KAKUWA , OSAMU SAKAI , HIROMI KITA
CPC classification number: B01D53/326 , B01D53/30 , B01D2256/16
Abstract: A compressor device includes: a compressor that causes, by applying a voltage between an anode and a cathode, hydrogen in a hydrogen-containing gas supplied to the anode to move through an electrolyte membrane to the cathode and compresses the hydrogen; a first regulator that regulates the dew point of the hydrogen-containing gas to be supplied to the anode; a second regulator that regulates the temperature of the hydrogen-containing gas to be supplied to the anode; and a controller that controls at least one of the first regulator or the second regulator based on the pressure of the hydrogen-containing gas to be supplied to the anode.
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公开(公告)号:US20220056597A1
公开(公告)日:2022-02-24
申请号:US17517033
申请日:2021-11-02
Inventor: YUICHI MIKAMI , TOMOHIRO KUROHA , TAKASHI KAKUWA , TAKESHI TERAYAMA , SHIGENORI ONUMA , KOSUKE NUNOO , TAKEHITO GOTO , KYOHEI KAWADA
IPC: C25B9/21 , C25B1/04 , C25B13/07 , C25B15/021 , C01B3/50
Abstract: The electrochemical apparatus of the present disclosure includes a first stack that includes an oxide ion conductor as an electrolyte and decomposes water vapor to generate hydrogen and oxygen, a second stack that includes a proton conductor as an electrolyte and separates the hydrogen generated in the first stack from a gas mixture of the hydrogen and the water vapor that has not been decomposed in the first stack, and a heat insulation material that covers the first stack and the second stack.
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公开(公告)号:US20210399319A1
公开(公告)日:2021-12-23
申请号:US17464579
申请日:2021-09-01
Inventor: OSAMU SAKAI , YUKIMUNE KANI , TAKASHI KAKUWA , HIROMI KITA , TOMOYA KAMATA , TAKAYUKI NAKAUE
IPC: H01M8/04276 , H01M8/04029
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 first 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. Upon the voltage applicator applying the voltage, the compression apparatus causes hydrogen included in a hydrogen-containing gas fed to the anode to move to the cathode and produces compressed hydrogen. One of the first end plates have a first channel formed therein, through which the hydrogen-containing gas fed to the anode flows, and a second channel formed therein, through which a heating medium flows. The compression apparatus further includes a heater that heats the heating medium.
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公开(公告)号:US20200044272A1
公开(公告)日:2020-02-06
申请号:US16512319
申请日:2019-07-15
Inventor: TAKASHI KAKUWA , HIROMI KITA , TOMOYA KAMATA , MASATOSHI NAKAMURA , TOMOHIRO KUROHA
IPC: H01M8/1246 , H01M4/88 , H01M8/1004
Abstract: A cell including: a pair of interconnectors for electrically connecting unit cells; a membrane-electrode assembly disposed between the interconnectors; a pair of current collectors, each of which includes an abutting surface abutting against a corresponding one of the electrode layers and a first base material surface being in contact with a corresponding one of the interconnectors and electrically connecting the corresponding of the electrode layers and the corresponding one of the interconnectors; and elastic bodies biasing the abutting surface of at least one current collector toward a corresponding one of the electrode layers. The elastic bodies includes: a second base material surface being in contact with the first base material surface; and an elastic body protruding portion supporting the abutting surface and protruding from the second base material surface toward the corresponding one of the electrode layers to bias the abutting surface toward the corresponding one of the electrode layers.
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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:US20230227990A1
公开(公告)日:2023-07-20
申请号:US18183080
申请日:2023-03-13
Inventor: HIROMI KITA , TAKASHI KAKUWA
Abstract: An anode separator for use in an electrochemical hydrogen pump includes a first anode gas flow channel having a serpentine shape, a second anode gas flow channel having a serpentine shape, and an anode gas discharge manifold into which an anode gas discharged from each of the first anode gas flow channel and the second anode gas flow channel flow. The first anode gas flow channel and the second anode gas flow channel are provided in a first region and a second region, respectively, that are divided from each other by a predetermined line parallel to a direction of the anode gas that flows into the anode gas discharge manifold.
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公开(公告)号:US20210372379A1
公开(公告)日:2021-12-02
申请号:US17395944
申请日:2021-08-06
Inventor: TAKAYUKI NAKAUE , TAKASHI KAKUWA , HIROMI KITA
IPC: F03G7/00
Abstract: A compressor includes an electrolyte membrane; an anode catalyst layer in contact with a first primary surface of the electrolyte membrane; a cathode catalyst layer in contact with a second primary surface of the electrolyte membrane; an anode diffusion layer disposed on the anode catalyst layer and including a porous carbon sheet; a cathode gas diffusion layer on the cathode catalyst layer; an anode support disposed on the anode diffusion layer and including a metal sheet having a plurality of vent holes; an anode separator disposed on the anode support and having, on the primary surface thereof closer to the anode support, a fluid flow channel through which an anode fluid flows; and a voltage applicator that applies a voltage across the anode catalyst layer and the cathode catalyst layer. The compressor produces compressed hydrogen by causing the voltage applicator to apply the voltage to move extracted protons from an anode fluid supplied to the anode catalyst layer to the cathode catalyst layer via the electrolyte membrane. The flexural strength of the metal sheet is higher than that of the porous carbon sheet.
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公开(公告)号:US20210305607A1
公开(公告)日:2021-09-30
申请号:US17345210
申请日:2021-06-11
Inventor: TAKASHI KAKUWA , HIROMI KITA , OSAMU SAKAI
IPC: H01M8/0656
Abstract: The 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 the voltage between the anode and the cathode, protons are extracted from an anode fluid fed onto the anode to migrate onto the cathode through the electrolyte membrane and compressed hydrogen is produced. The cathode separator has a first manifold hole and a first O-ring groove surrounding the first manifold hole. 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. The first O-ring is arranged to abut against the anode-side principal surface.
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公开(公告)号:US20170062853A1
公开(公告)日:2017-03-02
申请号:US15229115
申请日:2016-08-05
Inventor: TAKASHI KAKUWA , KUNIHIRO UKAI , TATSUO FUJITA
IPC: H01M8/0612 , H01M8/1016 , H01M8/04089 , H01M8/04014
CPC classification number: H01M8/0618 , B01J8/008 , B01J8/0257 , B01J8/0278 , B01J8/0285 , B01J2208/00504 , B01J2208/0053 , C01B3/38 , C01B2203/0233 , C01B2203/0244 , C01B2203/0261 , C01B2203/066 , C01B2203/0827 , C01B2203/1058 , C01B2203/1064 , C01B2203/107 , C01B2203/1614 , H01M8/04014 , H01M8/04022 , H01M8/04097 , H01M8/0631 , H01M8/1016 , H01M2008/1293
Abstract: A hydrogen generating apparatus includes a reformer that reforms fuel and generates reformed gas containing hydrogen, a combustor that heats the reformer, an exhaust gas path which covers the surroundings of an outer wall of the reformer and through which combustion exhaust gas from the combustor flows, and a reformed gas path through which the reformed gas sent from the reformer toward the combustor flows. The reformer is arranged on a flame forming side of the combustor, and a gas flow within the reformer in a portion thereof where the gas flow contacts the outer wall of the reformer is opposed to a flow of the combustion exhaust gas in the exhaust gas path in a portion thereof where the combustion exhaust gas contacts the outer wall of the reformer.
Abstract translation: 氢气发生装置包括重整器,其重整燃料并产生含氢的重整气体,加热重整器的燃烧器,覆盖重整器外壁周围的排气路径,来自燃烧室的燃烧废气流过该排气路径, 以及从重整器向燃烧器送出的重整气流经重整气路。 重整器布置在燃烧器的火焰形成侧,并且重整器内部气体与重整器的外壁接触的部分中的气流与废气路径中的燃烧废气的流动相对 在其中燃烧废气与重整器的外壁接触的部分。
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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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