公开(公告)号：US11056695B2

公开(公告)日：2021-07-06

申请号：US16184966

申请日：2018-11-08

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Takashi Kakuwa

IPC: H01M8/04089 ,  H01M8/04302 ,  H01M8/04303 ,  H01M8/1007 ,  H01M8/04828 ,  H01M8/04664 ,  H01M8/0662 ,  H01M8/04746 ,  H01M8/0432 ,  H01M8/04955 ,  H01M8/124

Abstract: A solid oxide fuel cell system includes a fuel cell stack that generates electric power through a reaction between a fuel gas and an oxidizing gas; a combustor in which anode and cathode off-gases discharged from the fuel cell stack are burned by diffusion combustion; a temperature sensor that detects temperature of the anode off-gas flowing into the combustor; and a controller. When the system is in at least one of the following states during power generation, the controller instructs the system to perform a power-generation control action for preventing failed combustion reactions: the temperature of the anode off-gas, detected by the temperature sensor, is below a first predetermined temperature for a predetermined continuous period of time; the temperature of the anode off-gas decreases by not less than a predetermined second temperature range during a predetermined period of time.

公开(公告)号：US11050067B2

公开(公告)日：2021-06-29

申请号：US15939408

申请日：2018-03-29

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Takashi Kakuwa

IPC: H01M8/04014 ,  C01B3/36 ,  H01M8/0662 ,  H01M8/04746 ,  H01M8/12 ,  H01M8/04089 ,  F23D14/22

Abstract: A fuel cell system includes a fuel cell, and a burner. The burner has anode off-gas apertures and first and second cathode off-gas apertures. In a cross section of the burner at a cutting plane that passes a first cathode off-gas aperture, an anode off-gas aperture, and a second cathode off-gas aperture that are aligned on a straight line when seen in plan view, the first cathode off-gas aperture is provided on one side of the anode off-gas aperture such that a vector of an ejecting direction of cathode off-gas forms a first acute angle with a vector of an ejecting direction of anode off-gas, and the second cathode off-gas aperture is provided on the other side of the anode off-gas aperture such that the vector of the ejecting direction of cathode off-gas forms a second acute angle with the vector of the ejecting direction of anode off-gas.

公开(公告)号：US10305132B2

公开(公告)日：2019-05-28

申请号：US15590871

申请日：2017-05-09

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Takashi Kakuwa ,  Shigenori Onuma

IPC: B01J8/00 ,  B01J8/02 ,  C01B3/38 ,  F23D14/22 ,  H01M8/124 ,  H01M8/0612 ,  H01M8/0637 ,  H01M8/1231 ,  H01M8/1233 ,  H01M8/1246 ,  H01M8/2428 ,  H01M8/04014

Abstract: A high-temperature fuel cell system includes a reformer that reforms a hydrocarbon-based raw fuel to generate a reformed gas containing hydrogen, a fuel cell that generates power by using the reformed gas and an oxidant gas, and a burner that heats the reformer. The burner includes an anode-off-gas gathering portion that has an anode-off-gas ejection hole and at which an anode off-gas discharged from an anode of the fuel cell gathers. The anode-off-gas gathering portion surrounds a first cathode-off-gas passing area through which a cathode off-gas discharged from a cathode of the fuel cell passes. The anode-off-gas ejection hole is formed such that the anode off-gas ejected upward from the anode-off-gas ejection hole approaches the cathode off-gas passing upward through the first cathode-off-gas passing area. The anode off-gas ejected from the anode-off-gas ejection hole and the cathode off-gas that has passed through the first cathode-off-gas passing area are burned.

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：US12074347B2

公开(公告)日：2024-08-27

申请号：US17511608

申请日：2021-10-27

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Takashi Kakuwa ,  Hiromi Kita ,  Masatoshi Nakamura

IPC: H01M8/00 ,  H01M8/0202 ,  H01M8/1004

CPC classification number: H01M8/006 ,  H01M8/0202 ,  H01M8/1004

Abstract: An electrochemical cell unit according to the present disclosure includes a flat plate type membrane electrode assembly having a structure in which an electrolyte membrane, a first electrode layer disposed on a first surface of the electrolyte membrane, and a second electrode layer disposed on a second surface of the electrolyte membrane are laminated; a first current collector in contact with the first electrode layer of the membrane electrode assembly; an interconnector electrically connected to the first current collector, a second current collector in contact with the second electrode layer of the membrane electrode assembly; and an outer peripheral part made of a metal material that surrounds an outer periphery of the first electrode layer together with the interconnector and the electrolyte membrane to form a gas introduction space for guiding internal gas to the first electrode layer.

公开(公告)号：US11367890B2

公开(公告)日：2022-06-21

申请号：US16512319

申请日：2019-07-15

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Takashi Kakuwa ,  Hiromi Kita ,  Tomoya Kamata ,  Masatoshi Nakamura ,  Tomohiro Kuroha

IPC: H01M8/1246 ,  H01M8/1004 ,  H01M4/88 ,  H01M8/12

Abstract: A cell including: a pair of interconnectors for electrically connecting unit cells; a membrane-electrode assembly disposed between the interconnectors; a pair of current collectors, each of which includes an abutting surface abutting against a corresponding one of the electrode layers and a first base material surface being in contact with a corresponding one of the interconnectors and electrically connecting the corresponding of the electrode layers and the corresponding one of the interconnectors; and elastic bodies biasing the abutting surface of at least one current collector toward a corresponding one of the electrode layers. The elastic bodies includes: a second base material surface being in contact with the first base material surface; and an elastic body protruding portion supporting the abutting surface and protruding from the second base material surface toward the corresponding one of the electrode layers to bias the abutting surface toward the corresponding one of the electrode layers.

公开(公告)号：US11127963B2

公开(公告)日：2021-09-21

申请号：US16280041

申请日：2019-02-20

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Takashi Kakuwa ,  Shigenori Onuma ,  Yuichi Mikami

IPC: H01M8/04955 ,  H01M8/04303 ,  H01M8/0432 ,  H01M8/04701 ,  H01M8/04746 ,  H01M8/0612 ,  H01M8/1233 ,  H01M8/124

Abstract: A SOFC system includes: a fuel cell stack; a reformer; an air supplier: a combustor; and a controller. In a stop control of the above system, the controller calculates an average of ratios of the air to the raw material supplied to the reformer as a first average, in a case in which a molar fraction of a hydrogen component in the anode off-gas is higher than a molar fraction of a raw material component in the anode off-gas, and calculates the average of the ratios of the air to the raw material supplied to the reformer as a second average, in a case in which the molar fraction of the hydrogen component in the anode off-gas is lower than the molar fraction of the raw material component in the anode off-gas. The controller controls the air supplier so that the first average is higher than the second average.

公开(公告)号：US10693173B2

公开(公告)日：2020-06-23

申请号：US15800069

申请日：2017-11-01

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Takashi Kakuwa

IPC: H01M8/2475 ,  H01M8/0247 ,  H01M8/0273 ,  H01M8/0276 ,  H01M8/2425 ,  H01M8/248 ,  H01M8/2432 ,  H01M8/04014 ,  H01M8/124

Abstract: A fuel cell device includes: a fuel cell stack having a plurality of stacked unit cells; a first current collector and a second current collector which are arranged so as to have the fuel cell stack sandwiched therebetween in a stacking direction of the unit cells; a housing which stores the fuel cell stack, the first current collector, and the second current collector; a conductive first fastening member which is electrically connected to the second current collector, extends from the second current collector toward a side where the first current collector is disposed along the stacking direction, and has a first protrusion protruding from inside the housing to outside the housing; and a first elastic member which is provided at the first protrusion of the first fastening member so as to elastically bias the second current collector toward the first current collector via the first fastening member.

公开(公告)号：US10256489B2

公开(公告)日：2019-04-09

申请号：US15229115

申请日：2016-08-05

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Takashi Kakuwa ,  Kunihiro Ukai ,  Tatsuo Fujita

IPC: H01M8/04 ,  H01M8/06 ,  H01M8/10 ,  H01M8/0612 ,  H01M8/04014 ,  H01M8/04089 ,  H01M8/1016 ,  C01B3/38 ,  B01J8/00 ,  B01J8/02 ,  H01M8/124

Abstract: A hydrogen generating apparatus includes a reformer that reforms fuel and generates reformed gas containing hydrogen, a combustor that heats the reformer, an exhaust gas path which covers the surroundings of an outer wall of the reformer and through which combustion exhaust gas from the combustor flows, and a reformed gas path through which the reformed gas sent from the reformer toward the combustor flows. The reformer is arranged on a flame forming side of the combustor, and a gas flow within the reformer in a portion thereof where the gas flow contacts the outer wall of the reformer is opposed to a flow of the combustion exhaust gas in the exhaust gas path in a portion thereof where the combustion exhaust gas contacts the outer wall of the reformer.