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1. 发明申请

US20210285427A1 ELECTROCHEMICAL HYDROGEN PUMP 有权
公开(公告)号：US20210285427A1
公开(公告)日：2021-09-16
申请号：US17332063
申请日：2021-05-27
申请人： Panasonic Intellectual Property Management Co., Ltd.
发明人： TAKAYUKI NAKAUE , KUNIHIRO UKAI
IPC分类号： F03G7/00
摘要： An electrochemical hydrogen pump includes an electrolyte membrane, an anode on a first primary surface of the electrolyte membrane, a cathode on a second primary surface of the electrolyte membrane, and an anode separator on the anode. The anode includes an anode catalyst layer on the first primary surface of the electrolyte membrane and an anode gas diffusion layer on the anode catalyst layer. The anode gas diffusion layer includes a porous carbon sheet that is a powder molded body.

2. 发明申请

US20210372379A1 COMPRESSOR 有权
公开(公告)号：US20210372379A1
公开(公告)日：2021-12-02
申请号：US17395944
申请日：2021-08-06
申请人： Panasonic Intellectual Property Management Co., Ltd.
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.

3. 发明申请

US20200340471A1 ELECTROCHEMICAL HYDROGEN PUMP 审中-公开
公开(公告)号：US20200340471A1
公开(公告)日：2020-10-29
申请号：US16925371
申请日：2020-07-10
申请人： Panasonic Intellectual Property Management Co., Ltd.
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.

4. 发明申请

US20200011313A1 ELECTROCHEMICAL HYDROGEN PUMP 审中-公开
公开(公告)号：US20200011313A1
公开(公告)日：2020-01-09
申请号：US16442578
申请日：2019-06-17
申请人： Panasonic Intellectual Property Management Co., Ltd.
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.

5. 发明申请

US20230122705A1 HYDROGEN SYSTEM AND METHOD OF OPERATING HYDROGEN SYSTEM 有权
公开(公告)号：US20230122705A1
公开(公告)日：2023-04-20
申请号：US18065654
申请日：2022-12-14
申请人： Panasonic Intellectual Property Management Co., Ltd.
发明人： TAKAYUKI NAKAUE , SHIGENORI ONUMA , YUKIMUNE KANI
IPC分类号： C25B15/02 , C25B1/04
摘要： A hydrogen system includes: a compressor including at least one cell that includes an electrolyte membrane, an anode catalyst layer provided on one principal surface of the electrolyte membrane, a cathode catalyst layer provided on another principal surface of the electrolyte membrane, an anode gas diffusion layer provided on the anode catalyst layer and including a porous sheet containing a metal, and a cathode gas diffusion layer provided on the cathode catalyst layer, and a voltage applicator that apples a voltage between the anode catalyst layer and the cathode catalyst layer, wherein the compressor that generates compressed hydrogen by causing the voltage applicator to apply the voltage to move hydrogen in hydrogen-containing gas supplied to an anode to the cathode via the electrolyte membrane; and a controller that causes the voltage applicator to apply the voltage after shutdown or at startup.

6. 发明申请

US20210399319A1 COMPRESSION APPARATUS 有权
公开(公告)号：US20210399319A1
公开(公告)日：2021-12-23
申请号：US17464579
申请日：2021-09-01
申请人： Panasonic Intellectual Property Management Co., Ltd.
发明人： OSAMU SAKAI , YUKIMUNE KANI , TAKASHI KAKUWA , HIROMI KITA , TOMOYA KAMATA , TAKAYUKI NAKAUE
IPC分类号： H01M8/04276 , H01M8/04029
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 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.

7. 发明申请

US20210323817A1 HYDROGEN SYSTEM AND METHOD OF OPERATING HYDROGEN SYSTEM 有权
公开(公告)号：US20210323817A1
公开(公告)日：2021-10-21
申请号：US17365033
申请日：2021-07-01
申请人： Panasonic Intellectual Property Management Co., Ltd.
发明人： TAKAYUKI NAKAUE , TOMOYA KAMATA
IPC分类号： C01B3/06
摘要： A hydrogen system includes: a compressor that applies a voltage between an anode and a cathode to move hydrogen in hydrogen-containing gas supplied to the anode to the cathode via an electrolyte membrane and compress the hydrogen; a first flow path through which hydrogen-containing gas discharged from the anode of the compressor flows; a second flow path to supply cathode off-gas to the anode of the compressor, the cathode off-gas being discharged from the cathode of the compressor; an on-off valve provided on the second flow path; and a controller that opens the on-off valve in a normal stop.

8. 发明申请

US20200350604A1 ELECTROCHEMICAL HYDROGEN PUMP 审中-公开
公开(公告)号：US20200350604A1
公开(公告)日：2020-11-05
申请号：US16925379
申请日：2020-07-10
申请人： Panasonic Intellectual Property Management Co., Ltd.
发明人： KUNIHIRO UKAI , TAKAYUKI NAKAUE , YUKIMUNE KANI
IPC分类号： H01M8/04082 , F04B45/047
摘要： An electrochemical hydrogen pump includes an electrolyte membrane, an anode catalyst layer on one primary surface of the electrolyte membrane, a cathode catalyst layer on the other primary surface of the electrolyte membrane, an anode gas diffusion layer on the anode catalyst layer, an anode separator on the anode gas diffusion layer, and a voltage applicator that applies a voltage between the anode catalyst layer and the cathode catalyst layer. Application of the voltage 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 contains carbon fibers and a carbon material different from the carbon fibers and that has a larger porosity in a first surface layer on the anode separator side, than in a second surface layer on the anode catalyst layer side.

9. 发明申请

US20230078714A1 HYDROGEN SYSTEM AND METHOD FOR OPERATING HYDROGEN SYSTEM 有权
公开(公告)号：US20230078714A1
公开(公告)日：2023-03-16
申请号：US18053390
申请日：2022-11-08
申请人： Panasonic Intellectual Property Management Co., Ltd.
发明人： TOMOYA KAMATA , TAKAYUKI NAKAUE , YUKIMUNE KANI
IPC分类号： C25B1/02 , C25B9/05 , C25B9/30 , C25B9/60 , C25B11/033 , C25B15/08
摘要： 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.

10. 发明申请

US20220081780A1 COMPRESSION APPARATUS 有权
公开(公告)号：US20220081780A1
公开(公告)日：2022-03-17
申请号：US17535615
申请日：2021-11-25
申请人： Panasonic Intellectual Property Management Co., Ltd.
发明人： TAKAYUKI NAKAUE , CHIKUEN WONG
IPC分类号： C25B1/02 , C25B9/19
摘要： A compression apparatus including an electrolyte membrane; an anode catalyst layer in contact with one of main surfaces; a cathode catalyst layer in contact with the other of the main surfaces; an anode gas diffusion layer in contact with the anode catalyst layer; and a cathode gas diffusion layer in contact with the cathode catalyst layer, the membrane electrode assembly used in a compression apparatus that generates compressed hydrogen by applying voltage between the anode catalyst layer and the cathode catalyst layer to move protons, taken out of an anode fluid supplied to the anode catalyst layer, to the cathode catalyst layer via the electrolyte membrane. The cathode gas diffusion layer includes a porous carbon sheet and a porosity of a first surface layer in an opposite side to a side of the cathode catalyst layer is lower than a porosity of a layer inward from the first surface layer.

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