公开(公告)号：US20210346879A1

公开(公告)日：2021-11-11

申请号：US17381137

申请日：2021-07-20

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： HIROYUKI KOSHIKAWA ,  HIDEAKI MURASE ,  TAKAO HAYASHI ,  KOSUKE NAKAJIMA ,  SEIGO SHIRAISHI

IPC: B01J35/00 ,  C25B11/091 ,  C25B1/04 ,  C25B9/17 ,  C25B9/65 ,  C25B11/02 ,  B01J35/02

Abstract: A layered double hydroxide of the present disclosure includes two or more transition metals and a chelating agent. The layered double hydroxide has an average particle diameter of 10 nm or less.

公开(公告)号：US20240052505A1

公开(公告)日：2024-02-15

申请号：US18491746

申请日：2023-10-20

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： KOICHIRO ASAZAWA ,  HIROSHI SHIRATAKI ,  HIDEAKI MURASE ,  TAKAO HAYASHI ,  KOICHI KOGA

IPC: C25B11/061 ,  C25B1/04 ,  C25B9/23 ,  C25B11/032 ,  C25B11/052 ,  C25B11/075

CPC classification number: C25B11/061 ,  C25B1/04 ,  C25B9/23 ,  C25B11/032 ,  C25B11/052 ,  C25B11/075

Abstract: A water electrolysis cell includes an anode, a cathode, and an anion-exchange membrane disposed between the anode and the cathode. The anode includes a catalyst layer disposed on the anion-exchange membrane and an anode gas diffusion layer disposed on the catalyst layer. The anode gas diffusion layer includes metal fiber. In the metal fiber, a section constituting a surface of the metal fiber is composed of nickel.

公开(公告)号：US20190356009A1

公开(公告)日：2019-11-21

申请号：US16386801

申请日：2019-04-17

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： YOSUKE KITAZAWA ,  MARINE FAYOLLE ,  SATORU TAMURA ,  TAKAO HAYASHI

IPC: H01M8/18 ,  H01M8/04119 ,  H01M8/04828 ,  H01M8/04701

Abstract: A fuel cell system includes a fuel cell that includes an anode and a cathode and generates electricity by reducing a mediator at the cathode, a regenerator that oxidizes the mediator, a fuel gas feed path through which fuel gas to be supplied to the anode flows, a humidifier that is disposed in the fuel gas feed path and humidifies the fuel gas, and a water collection path that extends from the regenerator to the humidifier and guides to the humidifier at least one selected from steam produced at the regenerator and condensation formed from the steam.

公开(公告)号：US20240044028A1

公开(公告)日：2024-02-08

申请号：US18487062

申请日：2023-10-14

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： HIROSHI SHIRATAKI ,  TAKAO HAYASHI ,  HIDEAKI MURASE ,  KOICHIRO ASAZAWA

IPC: C25B15/027 ,  C25B1/04 ,  C25B15/021 ,  C25B9/67 ,  C25B11/075 ,  C25B11/054 ,  C25B11/037 ,  C25B11/032 ,  C25B11/061

CPC classification number: C25B15/027 ,  C25B1/04 ,  C25B15/021 ,  C25B9/67 ,  C25B11/075 ,  C25B11/054 ,  C25B11/037 ,  C25B11/032 ,  C25B11/061

Abstract: A water electrolyzer includes an electrochemical cell including an anode and a cathode, an electrolyte solution, a voltage applicator, and a controller. The voltage applicator applies a voltage between the anode and the cathode. The electrochemical cell includes nickel. In the shutdown of the water electrolyzer, the controller causes the voltage applicator to apply the voltage at least when the temperature of the electrolyte solution is equal to or more than a predetermined threshold value.

公开(公告)号：US20230220571A1

公开(公告)日：2023-07-13

申请号：US18183210

申请日：2023-03-14

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： HIROSHI SHIRATAKI ,  HIDEAKI MURASE ,  TAKAO HAYASHI ,  MICHIO SUZUKA

IPC: C25B11/057 ,  C25B1/04 ,  C25B9/23 ,  C25B11/054 ,  C25B11/075

CPC classification number: C25B11/057 ,  C25B1/04 ,  C25B9/23 ,  C25B11/054 ,  C25B11/075

Abstract: An electrode catalyst for a water electrolysis cell includes a catalyst, and a polymer of intrinsic microporosity having a Tröger's base skeleton containing a quaternary ammonium group. A water electrolysis cell includes an anode, a cathode, and an electrolyte membrane. The electrolyte membrane is disposed between the anode and the cathode. At least one selected from the group consisting of the anode and the cathode includes the electrode catalyst.

公开(公告)号：US20240309527A1

公开(公告)日：2024-09-19

申请号：US18672484

申请日：2024-05-23

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： KOICHIRO ASAZAWA ,  HIDEAKI MURASE ,  KOICHI SAWADA ,  TAKAO HAYASHI

IPC: C25B15/021 ,  C25B1/04 ,  C25B9/19 ,  C25B9/67 ,  C25B11/046 ,  C25B15/025 ,  C25B15/08

CPC classification number: C25B15/021 ,  C25B1/04 ,  C25B9/19 ,  C25B9/67 ,  C25B11/046 ,  C25B15/025 ,  C25B15/087

Abstract: A method for operating a water electrolyzer includes applying a voltage to a water electrolysis cell such that a current having a target current value flows through the water electrolysis cell and stopping the current that flows through the water electrolysis cell upon a voltage applied to the water electrolysis cell being increased to a predetermined threshold value or more when a water electrolysis reaction is performed.

公开(公告)号：US20230235467A1

公开(公告)日：2023-07-27

申请号：US18183223

申请日：2023-03-14

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： HIROSHI SHIRATAKI ,  HIDEAKI MURASE ,  TAKAO HAYASHI ,  MICHIO SUZUKA

IPC: C25B11/073 ,  C25B1/04 ,  C25B11/057 ,  C25B9/19 ,  C25B13/04 ,  C25B9/65

CPC classification number: C25B11/073 ,  C25B1/04 ,  C25B9/19 ,  C25B9/65 ,  C25B11/057 ,  C25B13/04

Abstract: The electrode catalyst ink for a water electrolysis cell includes a catalyst including a layered double hydroxide, an organic polymer, and a solvent. The Hansen solubility parameter distance Ra1 between the solvent and the catalyst is 15.0 MPa½ or more and less than 20.5 MPa½. The Hansen solubility parameter distance Ra2 between the solvent and the organic polymer is 10.0 MPa½ or more and 14.0 MPa½ or less.

公开(公告)号：US20230227989A1

公开(公告)日：2023-07-20

申请号：US18183044

申请日：2023-03-13

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： HIROSHI SHIRATAKI ,  HIDEAKI MURASE ,  TAKAO HAYASHI ,  MICHIO SUZUKA

IPC: C25B11/075 ,  B01J23/755 ,  C09D11/52 ,  C25B1/04 ,  C25B9/19

CPC classification number: C25B11/075 ,  B01J23/755 ,  C09D11/52 ,  C25B1/04 ,  C25B9/19

Abstract: The electrode catalyst ink includes a catalyst including a layered double hydroxide, an organic polymer, and a solvent. The solvent includes a first solvent, a second solvent, and a third solvent. The third solvent has a boiling point higher than a boiling point of the first solvent and higher than a boiling point of the second solvent. The Hansen solubility parameter distance Ra1 [MPa1/2] between the third solvent and the catalyst and the Hansen solubility parameter distance Ra2 [MPa1/2] between the third solvent and the organic polymer satisfy a relationship of 2.08Ra1−16.0≤Ra2≤2.08Ra1−13.5.

公开(公告)号：US20230160082A1

公开(公告)日：2023-05-25

申请号：US18150685

申请日：2023-01-05

Applicant: Panasonic Intellectual Property Management Co., Ltd

Inventor： HIROSHI SHIRATAKI ,  TAKAO HAYASHI ,  HIDEAKI MURASE ,  MICHIO SUZUKA

IPC: C25B11/095 ,  C25B1/04 ,  C25B9/23 ,  C25B9/19

CPC classification number: C25B11/095 ,  C25B1/04 ,  C25B9/23 ,  C25B9/19

Abstract: An electrode catalyst for a water electrolysis cell includes a catalyst and a polymer of intrinsic microporosity, and the polymer of intrinsic microporosity is neutral.

公开(公告)号：US20230121007A1

公开(公告)日：2023-04-20

申请号：US18067775

申请日：2022-12-19

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： HIROYUKI KOSHIKAWA ,  HIDEAKI MURASE ,  TAKAO HAYASHI ,  MICHIO SUZUKA ,  SEIGO SHIRAISHI

IPC: C25B11/053 ,  C25B1/04 ,  C25B11/075

Abstract: A catalyst includes a layered double hydroxide and a metal particle. The layered double hydroxide includes ions of at least two transition metals. The metal particle includes at least one transition metal. The metal particle has a surface coated with the layered double hydroxide.