公开(公告)号：US20210079546A1

公开(公告)日：2021-03-18

申请号：US17108008

申请日：2020-12-01

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： HIDENOBU WAKITA ,  TOMOYA KAMATA ,  OSAMU SAKAI ,  KUNIHIRO UKAI ,  YUKIMUNE KANI ,  KEIICHI YAMAMOTO ,  MISA YOROZUYA

IPC: C25B15/08 ,  C25B1/10 ,  C25B9/08 ,  C25B13/08

Abstract: A hydrogen system includes: a compressor in which protons extracted from an anode fluid supplied to an anode move to a cathode through an electrolyte membrane and compressed hydrogen is generated; and a first eliminator including: a water-permeable membrane; a cathode gas flow path through which a cathode gas discharged from the cathode of the compressor flows, the cathode gas flow path being provided on one main surface of the water-permeable membrane; and an accommodation portion provided on the other main surface of the water-permeable membrane and filled with a liquid at a pressure lower than that of the cathode gas. The first eliminator removes moisture contained in the cathode gas.

公开(公告)号：US20200340457A1

公开(公告)日：2020-10-29

申请号：US16926794

申请日：2020-07-13

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： KUNIHIRO UKAI ,  YUKIMUNE KANI

IPC: F03G7/00 ,  F04B45/047

Abstract: A hydrogen pressurization system includes: an electrochemical hydrogen pump being configured to transfer hydrogen in a hydrogen-containing gas to be supplied to an anode to a cathode through an electrolyte membrane, and pressurize the hydrogen; and a first removal unit through which an off-gas discharged from the cathode of the electrochemical hydrogen pump and the hydrogen-containing gas to be supplied to the anode flow with a water permeable membrane interposed therebetween, the first removal unit being configured to remove at least one of water vapor and water liquid contained in the off-gas.

公开(公告)号：US20180155193A1

公开(公告)日：2018-06-07

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 ,  C25B1/12 ,  H01M8/14 ,  C01B3/50 ,  H01M8/04082 ,  H01M8/0662 ,  B01D53/32

CPC classification number: C01B3/58 ,  B01D53/326 ,  B01D2256/16 ,  C01B3/503 ,  C25B1/12 ,  H01M8/0232 ,  H01M8/0271 ,  H01M8/04201 ,  H01M8/0681 ,  H01M8/141 ,  H01M8/248 ,  H01M2008/1095 ,  Y02E60/366

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.

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：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.

公开(公告)号：US20190383283A1

公开(公告)日：2019-12-19

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: F04B45/047

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：US20180006317A1

公开(公告)日：2018-01-04

申请号：US15621419

申请日：2017-06-13

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： YUKIMUNE KANI ,  KUNIHIRO UKAI ,  SHIGENORI ONUMA

IPC: H01M8/04007 ,  H01M8/04746 ,  H01M8/0432 ,  H01M8/2465 ,  H01M8/04223

CPC classification number: H01M8/04074 ,  H01M8/04089 ,  H01M8/04126 ,  H01M8/04268 ,  H01M8/0432 ,  H01M8/04328 ,  H01M8/04343 ,  H01M8/04365 ,  H01M8/04402 ,  H01M8/04746 ,  H01M8/0491 ,  H01M8/0618 ,  H01M8/2465 ,  H01M2008/1095

Abstract: A fuel cell system includes a fuel feeder that supplies fuel, a fuel cell stack that generates power through an electrochemical reaction using air and a hydrogen-containing gas generated from the fuel, a temperature sensor that senses the temperature of the fuel cell stack, and a controller. The fuel cell stack has a membrane electrode assembly including an electrolyte membrane through which protons can pass, a cathode on one side of the electrolyte membrane, and an anode on the other side of the electrolyte membrane. The controller defines an upper limit of current output from the fuel cell stack on the basis of the temperature of the fuel cell stack and the supply of the fuel and keeps the current output from the fuel cell stack at or below the upper limit.