公开(公告)号：US12100874B2

公开(公告)日：2024-09-24

申请号：US17345210

申请日：2021-06-11

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Takashi Kakuwa ,  Hiromi Kita ,  Osamu Sakai

IPC: H01M8/0656

CPC classification number: 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.

公开(公告)号：US10811712B2

公开(公告)日：2020-10-20

申请号：US16198271

申请日：2018-11-21

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Osamu Sakai ,  Kunihiro Ukai ,  Hidenobu Wakita

IPC: H01M8/06 ,  H01M8/0662 ,  C25B15/08 ,  C25B9/10 ,  C25B15/02 ,  B01D53/22 ,  B01D53/32 ,  C01B3/50 ,  H01M8/04119 ,  H01M8/04082

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.

公开(公告)号：US11952671B2

公开(公告)日：2024-04-09

申请号：US16418327

申请日：2019-05-21

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Kunihiro Ukai ,  Norihiko Kawabata ,  Osamu Sakai ,  Hidenobu Wakita ,  Jin Zhang ,  Yukimune Kani

IPC: C25B1/02 ,  B01D53/32

CPC classification number: C25B1/02 ,  B01D53/326

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.

公开(公告)号：US12139805B2

公开(公告)日：2024-11-12

申请号：US17368993

申请日：2021-07-07

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Osamu Sakai ,  Hidenobu Wakita ,  Atsuo Okaichi

IPC: C25B9/67 ,  C01B3/38 ,  C25B1/04 ,  H01M8/04007 ,  H01M8/0656

Abstract: A hydrogen system includes a compressor that 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 a voltage applicator that applies a voltage between the anode and the cathode, the compressor producing compressed hydrogen by causing the voltage applicator to apply a voltage between the anode and the cathode to move hydrogen in hydrogen-containing-gas containing steam supplied to the anode to the cathode via the electrolyte membrane; a supply path through which the hydrogen-containing-gas containing steam to be supplied to the anode flows; a cooling mechanism disposed in the supply path; and a heat exchanger disposed in the supply path, the heat exchanger exchanging heat between the hydrogen-containing-gas flowing through the supply path upstream of the cooling mechanism and the hydrogen-containing-gas flowing through the supply path downstream of the cooling mechanism.

公开(公告)号：US10756376B2

公开(公告)日：2020-08-25

申请号：US16377888

申请日：2019-04-08

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Hidenobu Wakita ,  Kunihiro Ukai ,  Osamu Sakai ,  Yoichiro Tsuji

IPC: H01M8/04 ,  H01M8/18 ,  H01M8/04746

Abstract: A hydrogen supply system includes: an electrochemical hydrogen pump including an electrolyte membrane, an anode and a cathode provided to a first and second main surfaces of the electrolyte membrane, respectively, an anode flow path and cathode flow path through which hydrogen flows, and a voltage applicator applying a voltage between the anode and cathode, pressurizing and sending hydrogen supplied to the anode via the anode flow path to the cathode by applying a voltage by the voltage applicator, and supplying the pressurized hydrogen in the cathode flow path to a hydrogen reservoir; a pressure adjuster adjusting a cathode flow path pressure; and a controller controlling the pressure adjuster and making the cathode flow path pressure higher than an anode flow path pressure before starting a hydrogen pressurization action for pressurizing and supplying hydrogen supplied to the anode flow path to the cathode flow path.

公开(公告)号：US10320016B2

公开(公告)日：2019-06-11

申请号：US15590859

申请日：2017-05-09

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Osamu Sakai ,  Kunihiro Ukai ,  Yasushi Kaneko ,  Shigenori Onuma ,  Takashi Kakuwa

IPC: C01B3/06 ,  H01M8/124 ,  H01M8/0612 ,  H01M8/0662 ,  H01M8/04007 ,  H01M8/04014

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.

公开(公告)号：US12203178B2

公开(公告)日：2025-01-21

申请号：US18598841

申请日：2024-03-07

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Kunihiro Ukai ,  Norihiko Kawabata ,  Osamu Sakai ,  Hidenobu Wakita ,  Jin Zhang ,  Yukimune Kani

IPC: C25B1/02 ,  B01D53/32

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.

公开(公告)号：US12095132B2

公开(公告)日：2024-09-17

申请号：US17471726

申请日：2021-09-10

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Osamu Sakai ,  Yukimune Kani ,  Takashi Kakuwa ,  Hiromi Kita ,  Tomoya Kamata ,  Takayuki Nakaue

IPC: H01M8/248 ,  H01M8/0438 ,  H01M8/0656 ,  H01M8/1004

CPC classification number: H01M8/248 ,  H01M8/04388 ,  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.

公开(公告)号：US11978933B2

公开(公告)日：2024-05-07

申请号：US17412331

申请日：2021-08-26

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Osamu Sakai ,  Takashi Kakuwa

IPC: H01M8/0656 ,  C25B9/05

CPC classification number: H01M8/0656 ,  C25B9/05

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, protons are extracted from an anode fluid fed to the anode to move to the cathode through the electrolyte membrane and compressed hydrogen is produced. The anode separator has a fluid channel, a manifold hole, and a communicating path which are formed in an anode-side principal surface. The compression apparatus includes a face seal disposed on an outer periphery of a region of the anode-side principal surface of the anode separator which faces the anode. The face seal has a three-layer structure including a metal sheet and a pair of elastic sheets.

公开(公告)号：US10301179B2

公开(公告)日：2019-05-28

申请号：US15726445

申请日：2017-10-06

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Osamu Sakai ,  Kunihiro Ukai ,  Hidenobu Wakita ,  Yukimune Kani ,  Yuuichi Yakumaru ,  Takashi Sotoku

IPC: C01B3/58 ,  H01M8/14 ,  C25B1/12 ,  H01M8/04082 ,  H01M8/0662 ,  B01D53/32 ,  C01B3/50 ,  H01M8/248 ,  H01M8/0232 ,  H01M8/0271 ,  H01M8/1018

Abstract: An apparatus includes: an electrolyte membrane; a cathode catalyst layer provided to one main surface of the electrolyte membrane; an anode catalyst layer provided to the other main surface of the electrolyte membrane; a cathode gas diffusion layer provided on a main surface of the cathode catalyst layer not facing the electrolyte membrane; a separator including a recess through which cathode gas flows; an anode gas diffusion layer provided on a main surface of the anode catalyst layer not facing the electrolyte membrane; a voltage applicator applying a voltage between the cathode catalyst layer and the anode catalyst layer; and a fastener fastening a laminated body. The cathode gas diffusion layer is accommodated in the recess, projects from the recess in a thickness direction before fastening of the laminated body, and includes an elastic member between side surfaces of the cathode gas diffusion layer and of the recess.