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：US10989184B2

公开(公告)日：2021-04-27

申请号：US16442578

申请日：2019-06-17

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Kunihiro Ukai ,  Hiromi Kita ,  Takayuki Nakaue

IPC: F04B37/04 ,  F04B37/18 ,  F04B43/04

Abstract: 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.

公开(公告)号：US12046781B2

公开(公告)日：2024-07-23

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

CPC classification number: 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：US11577196B2

公开(公告)日：2023-02-14

申请号：US16503661

申请日：2019-07-05

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Kunihiro Ukai ,  Takayuki Nakaue ,  Hidenobu Wakita

IPC: B01D53/32 ,  C01B3/50 ,  H01M16/00

Abstract: An electrochemical hydrogen pump includes an electrolyte membrane, an anode catalyst layer, a cathode catalyst layer, an anode gas diffusion layer, a cathode gas diffusion layer, an anode separator, a cathode separator, a first end plate and a second end plate that are disposed on the respective ends of at least one hydrogen pump unit in which the electrolyte membrane, the catalyst layers, the gas diffusion layers, and the separators are stacked on each other, a fastener that fastens the end plates and at least one hydrogen pump unit, and a voltage applier. The electrochemical hydrogen pump transfers hydrogen from the anode catalyst layer to the cathode catalyst layer and pressurizes hydrogen when the voltage applier applies the voltage. The cathode gas diffusion layer includes a water-repellent carbon fiber layer in a main surface thereof that is on a side of the cathode catalyst layer, and is compressed by the fastener.