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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
发明人： TAKAYUKI NAKAUE , TAKASHI KAKUWA , HIROMI KITA
IPC分类号： F03G7/00
摘要： 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
发明人： TAKASHI KAKUWA , HIROMI KITA , OSAMU SAKAI
IPC分类号： H01M8/0656
摘要： 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：US20200340471A1
公开(公告)日：2020-10-29
申请号：US16925371
申请日：2020-07-10
发明人： TAKAYUKI NAKAUE , KUNIHIRO UKAI , HIROMI KITA
IPC分类号： F04B45/047 , H01M8/04082
摘要： An electrochemical hydrogen pump includes an electrolyte membrane, an anode catalyst layer in contact with one primary surface of the electrolyte membrane, a cathode catalyst layer in contact with the other primary surface of the electrolyte membrane, an anode gas diffusion layer in contact with the anode catalyst layer, a cathode gas diffusion layer in contact with the cathode catalyst layer, and a voltage applicator that applies a voltage between the anode catalyst layer and the cathode catalyst layer. Application of the voltage by the voltage applicator causes hydrogen in a hydrogen-containing gas supplied to above the anode catalyst layer to move above the cathode catalyst layer and to be pressurized. The anode gas diffusion layer includes a porous carbon sheet that has a smaller porosity in a first surface layer, which is on the anode catalyst layer side, than in the inside layer deeper than the first surface layer.
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公开(公告)号：US20200011313A1
公开(公告)日：2020-01-09
申请号：US16442578
申请日：2019-06-17
发明人： KUNIHIRO UKAI , HIROMI KITA , TAKAYUKI NAKAUE
IPC分类号： F04B37/04
摘要： An electrochemical hydrogen pump includes a hydrogen pump unit including an electrolyte film, an anode catalyst layer, a cathode catalyst layer, an anode gas diffusion layer, an anode separator, a cathode gas diffusion layer, and a cathode separator, a first end plate and a second end plate, a fastener, and a voltage applicator. The electrochemical hydrogen pump transfers and pressurizes hydrogen on the cathode catalyst layer, when a voltage is applied by the voltage applicator. Cathode gas flow channels in which the cathode gas flows are connected to each other. The amount of thickness reduction of the cathode gas diffusion layer due to compression resulting from fastening of the fastener is larger in the hydrogen pump unit positioned at at least one end of the stacked hydrogen pump units than in the hydrogen pump unit positioned at neither end of the stacked hydrogen pump units.
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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
发明人： TAKAYUKI NAKAUE , OSAMU SAKAI , HIROMI KITA , YUKIMUNE KANI
CPC分类号： C25B15/083 , C25B1/04 , C25B9/19 , C25B9/75
摘要： 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：US20230227987A1
公开(公告)日：2023-07-20
申请号：US18183092
申请日：2023-03-13
发明人： TAKASHI KAKUWA , HIROMI KITA , OSAMU SAKAI
摘要： 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, and first and second plates 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. The first plate has formed therein a first space in which to store a cathode gas containing the compressed hydrogen. The second plate is provided with a first manifold through which the cathode gas flows and a first communicating path through which to lead, to the first space, the cathode gas having flowed in from the first manifold.
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公开(公告)号：US20230213027A1
公开(公告)日：2023-07-06
申请号：US18183071
申请日：2023-03-13
发明人： OSAMU SAKAI , HIROMI KITA , TAKASHI KAKUWA , TAKAYUKI NAKAUE
摘要： A compression apparatus includes an electrolyte membrane, an anode provided on a first principal surface of the electrolyte membrane, a cathode provided on a second principal surface of the electrolyte membrane, an anode separator provided on the anode, a cathode separator provided on the cathode, and a voltage applier that applies a voltage between the anode and the cathode. The compression apparatus causes, by using the voltage applier to apply a voltage, protons taken out from a hydrogen-containing gas that is supplied to the anode to move to the cathode via the electrolyte membrane and produces compressed hydrogen. The anode separator has a first flow channel, provided in a principal surface thereof facing away from the anode, through which a cooling fluid flows.
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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
发明人： OSAMU SAKAI , YUKIMUNE KANI , TAKASHI KAKUWA , HIROMI KITA , TOMOYA KAMATA , TAKAYUKI NAKAUE
IPC分类号： H01M8/248 , H01M8/0438 , H01M8/0656 , H01M8/1004
摘要： 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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公开(公告)号：US20210399324A1
公开(公告)日：2021-12-23
申请号：US17463629
申请日：2021-09-01
发明人： TOMOYA KAMATA , TAKASHI KAKUWA , HIROMI KITA , TOMOHIRO KUROHA
IPC分类号： H01M8/1213 , H01M4/86 , H01M8/1253
摘要： A membrane electrode assembly according to the present disclosure includes an electrode, an electrolyte layer bonded to the electrode and containing an electrolyte having proton conductivity, a metal frame, and a bonding layer disposed between a peripheral part of the electrolyte layer and the metal frame and held in contact with each of the electrolyte layer and the metal frame, wherein the bonding layer has a thickness of greater than or equal to 0.50 mm.
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公开(公告)号：US20200044263A1
公开(公告)日：2020-02-06
申请号：US16516874
申请日：2019-07-19
IPC分类号： H01M8/0271 , H01M8/2425 , H01M8/1213 , C25B9/08
摘要： A solid oxide fuel cell including unit cells, including: a pair of interconnectors for electrically connecting the unit cells; a membrane-electrode assembly including an electrolyte membrane and a pair of electrode layers disposed with the electrolyte membrane therebetween; a pair of current collectors disposed between the electrode layers and the interconnectors so as to be in contact with the pair of electrode layers and the pair of interconnectors, respectively, and electrically connecting the pair of electrode layers and the pair of interconnectors; and elastic bodies biasing at least one current collector of the pair of current collectors toward a corresponding electrode layer and made of austenitic stainless steel.
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