公开(公告)号：US20250075344A1

公开(公告)日：2025-03-06

申请号：US18953622

申请日：2024-11-20

Applicant: Panasonic Intellectual Property Management Co., Ltd.

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.

公开(公告)号：US20210285427A1

公开(公告)日：2021-09-16

申请号：US17332063

申请日：2021-05-27

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： TAKAYUKI NAKAUE ,  KUNIHIRO UKAI

IPC: F03G7/00

Abstract: 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.

公开(公告)号：US20240318668A1

公开(公告)日：2024-09-26

申请号：US18733041

申请日：2024-06-04

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： TAKAYUKI NAKAUE ,  HIROMI KITA ,  OSAMU SAKAI ,  YUKIMUNE KANI

IPC: F04F9/02 ,  C25B9/67 ,  C25B9/77

CPC classification number: F04F9/02 ,  C25B9/67 ,  C25B9/77

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.

公开(公告)号：US20240280093A1

公开(公告)日：2024-08-22

申请号：US18635077

申请日：2024-04-15

Applicant: Panasonic Intellectual Property Management Co., Ltd.

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.

公开(公告)号：US20230279570A1

公开(公告)日：2023-09-07

申请号：US18314821

申请日：2023-05-10

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： SHIGENORI ONUMA ,  TAKAYUKI NAKAUE

IPC: C25B15/02 ,  C25B9/23 ,  C25B15/08 ,  C25B1/02

CPC classification number: C25B15/02 ,  C25B9/23 ,  C25B15/08 ,  C25B1/02

Abstract: A hydrogen system includes a compressor that causes, by applying a voltage across an anode and a cathode with an interposed electrolyte membrane therebetween, hydrogen in a hydrogen-containing gas supplied to the anode to move to the cathode and produces compressed hydrogen; a pressure regulator that regulates pressure at least at the anode; and a controller that controls the pressure regulator to make the pressure at the anode higher than pressure at the cathode with the hydrogen-containing gas prevented from flowing out of the anode in a stop.

公开(公告)号：US20230290969A1

公开(公告)日：2023-09-14

申请号：US18297675

申请日：2023-04-10

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： TAKAYUKI NAKAUE ,  TOMOYA KAMATA ,  YUKIMUNE KANI

IPC: H01M8/04111 ,  H01M8/0258 ,  H01M8/04858

CPC classification number: H01M8/04111 ,  H01M8/0258 ,  H01M8/04873

Abstract: A hydrogen system includes: a compressor that causes, by application of a voltage between an anode and a cathode, hydrogen in a hydrogen-containing gas supplied to the anode to move to the cathode through an electrolyte membrane and compresses the hydrogen; a first flow channel that supplies the hydrogen-containing gas to the anode; a second flow channel that branches off from the first flow channel and supplies the hydrogen-containing gas to the cathode; and a check valve that is provided in the second flow channel and prevents a flow in a direction opposite to a flow of the hydrogen-containing gas to be supplied to the cathode.

公开(公告)号：US20230122705A1

公开(公告)日：2023-04-20

申请号：US18065654

申请日：2022-12-14

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： TAKAYUKI NAKAUE ,  SHIGENORI ONUMA ,  YUKIMUNE KANI

IPC: C25B15/02 ,  C25B1/04

Abstract: 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.

公开(公告)号：US20210399319A1

公开(公告)日：2021-12-23

申请号：US17464579

申请日：2021-09-01

Applicant: Panasonic Intellectual Property Management Co., Ltd.

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.

公开(公告)号：US20210323817A1

公开(公告)日：2021-10-21

申请号：US17365033

申请日：2021-07-01

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： TAKAYUKI NAKAUE ,  TOMOYA KAMATA

IPC: C01B3/06

Abstract: 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.

公开(公告)号：US20200350604A1

公开(公告)日：2020-11-05

申请号：US16925379

申请日：2020-07-10

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： KUNIHIRO UKAI ,  TAKAYUKI NAKAUE ,  YUKIMUNE KANI

IPC: H01M8/04082 ,  F04B45/047

Abstract: 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.