公开(公告)号：US11721819B2

公开(公告)日：2023-08-08

申请号：US17659771

申请日：2022-04-19

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Hiroki Okabe ,  Tomohiro Shinagawa ,  Yoshihiro Shinozaki

IPC: H01M8/04 ,  H01M8/04537 ,  H01M8/04082 ,  H01M8/04791

CPC classification number: H01M8/04552 ,  H01M8/04201 ,  H01M8/04798 ,  H01M2250/20

Abstract: A fuel cell system for air vehicles, wherein the fuel cell system comprises: a fuel cell, a fuel gas system for supplying fuel gas to the fuel cell, a potential sensor, and a controller; wherein the fuel gas system comprises a fuel gas supplier; wherein the controller determines whether or not a potential of the fuel cell measured by the potential sensor, is a reversal potential; and wherein, when the controller determines that the potential of the fuel cell is a reversal potential, the controller increases a fuel gas supply from the fuel gas supplier to the fuel cell.

公开(公告)号：US10511036B2

公开(公告)日：2019-12-17

申请号：US15592579

申请日：2017-05-11

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA ,  TOYOTA SHATAI KABUSHIKI KAISHA

Inventor： Hiroya Nakaji ,  Kazunori Shibata ,  Hiroki Okabe ,  Kousuke Kawajiri ,  Satoshi Futami ,  Keiji Hashimoto ,  Takamasa Kanie

IPC: H01M8/04119 ,  H01M8/04291 ,  H01M8/1004 ,  H01M8/04089

Abstract: A channel forming body used in a fuel cell module has a gas channel, a water conduit, and a communication path that provides communication between the gas channel and the water conduit. When a ridge is seen in a cross-section perpendicular to a channel extension direction, one of both ends of an external shape of the ridge is shaped so as to be located closer to a center of the ridge than an imaginary surface of the channel assumed to extend in a straight line along the channel extension direction. Portions of the ridge located closer to the center of the ridge are formed opposite from each other at left and right ends of the external shape of the ridge with the communication path interposed therebetween.

公开(公告)号：US10818938B2

公开(公告)日：2020-10-27

申请号：US15837687

申请日：2017-12-11

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Hiroki Okabe

IPC: H01M8/02 ,  H01M8/0267 ,  H01M8/0258 ,  H01M8/0273 ,  H01M8/1004 ,  H01M8/242 ,  H01M8/2485 ,  H01M8/1018 ,  H01M8/04029 ,  H01M8/2483

Abstract: A fuel cell stack includes a plurality of cells laminated. Each of the cells includes: a membrane electrode gas diffusion layer assembly; an insulating member; a first separator including a first gas passage and a first refrigerant passage; first, second, and third manifolds penetrating through the insulating member and the first separator such that a first gas, a second gas, and a refrigerant circulate through the first, second, and third manifolds, respectively; and a second separator including a second gas passage and a second refrigerant passage and configured to sandwich the membrane electrode gas diffusion layer assembly and the insulating member together with the first separator. In the each of the cells, the insulating member includes a first communication portion, a second communication portion, and a third communication portion, and the first separator has a communication opening via which the third communication portion communicates with the first refrigerant passage.

公开(公告)号：US09923228B2

公开(公告)日：2018-03-20

申请号：US15110807

申请日：2015-01-06

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Hideki Kubo ,  Hiroki Okabe ,  Takashi Kondo ,  Atsushi Ida

IPC: H01M8/02 ,  H01M8/2483 ,  H01M8/241 ,  H01M8/0271 ,  H01M8/0258 ,  H01M8/242 ,  H01M8/2465 ,  H01M8/0232 ,  H01M8/0245 ,  H01M8/0247 ,  H01M8/0273 ,  H01M8/0276 ,  H01M8/04291 ,  H01M8/1007 ,  H01M8/2457 ,  H01M8/1004 ,  H01M8/1018

CPC classification number: H01M8/2483 ,  H01M8/0232 ,  H01M8/0245 ,  H01M8/0247 ,  H01M8/0258 ,  H01M8/0271 ,  H01M8/0273 ,  H01M8/0276 ,  H01M8/04291 ,  H01M8/1004 ,  H01M8/1007 ,  H01M8/241 ,  H01M8/242 ,  H01M8/2457 ,  H01M8/2465 ,  H01M2008/1095 ,  H01M2300/0082

Abstract: A fuel cell is formed by laminating a plurality of power generating units. The power generating unit includes: a membrane electrode gas diffusion layer assembly; a sealing portion disposed along its outer circumference; a porous body flow path in which oxidant gas supplied to a cathode-side catalytic layer flows; a shielding plate provided between the sealing portion and the porous body flow path; and first, second separator plates configured to sandwich the membrane electrode gas diffusion layer assembly and the porous body flow path therebetween. The shielding plate, the porous body flow path, and the first separator plate making contact with the porous body flow path project into the oxidant exhaust gas discharge manifold determined by the sealing portion.

公开(公告)号：US20170331123A1

公开(公告)日：2017-11-16

申请号：US15592579

申请日：2017-05-11

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA ,  TOYOTA SHATAI KABUSHIKI KAISHA

Inventor： Hiroya Nakaji ,  Kazunori Shibata ,  Hiroki Okabe ,  Kousuke Kawajiri ,  Satoshi Futami ,  Keiji Hashimoto ,  Takamasa Kanie

IPC: H01M8/04119 ,  H01M8/1004 ,  H01M8/04291

CPC classification number: H01M8/04156 ,  H01M8/0258 ,  H01M8/04089 ,  H01M8/04291 ,  H01M8/1004

Abstract: A channel forming body used in a fuel cell module has a gas channel, a water conduit, and a communication path that provides communication between the gas channel and the water conduit. When a ridge is seen in a cross-section perpendicular to a channel extension direction, one of both ends of an external shape of the ridge is shaped so as to be located closer to a center of the ridge than an imaginary surface of the channel assumed to extend in a straight line along the channel extension direction. Portions of the ridge located closer to the center of the ridge are formed opposite from each other at left and right ends of the external shape of the ridge with the communication path interposed therebetween.

公开(公告)号：US10826084B2

公开(公告)日：2020-11-03

申请号：US16364944

申请日：2019-03-26

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Hiroki Okabe ,  Manabu Kato

IPC: H01M8/02 ,  H01M8/026 ,  H01M8/0267 ,  H01M8/04029 ,  H01M8/2457 ,  H01M8/241 ,  H01M8/1004 ,  H01M8/04089 ,  H01M8/1018

Abstract: A fuel cell includes: a membrane electrode assembly; and a separator disposed on one side of the membrane electrode assembly, wherein the separator includes flow path grooves through which reactant gas flows between the separator and the membrane electrode assembly, the flow path grooves include: wavy grooves wavily extending in a first direction and arranged in a second direction orthogonal to the first direction; and a linear groove linearly extending in the first direction, the wavy grooves include: a first wavy groove located closest to the linear groove among the wavy grooves; and a second wavy groove located opposite to the linear groove with respect to the first wavy groove, and amplitude of the first wavy groove is smaller than that of the second wavy groove.

公开(公告)号：US10763530B2

公开(公告)日：2020-09-01

申请号：US15797526

申请日：2017-10-30

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Hiroki Okabe

IPC: H01M8/1004 ,  H01M8/0202 ,  H01M8/0273 ,  H01M8/2418 ,  H01M8/0247

Abstract: A manufacturing method for a fuel cell includes: preparing a membrane electrode gas diffusion layer assembly; preparing a support frame having an electrical insulating property and an ultraviolet permeability; preparing a separator; bonding the membrane electrode gas diffusion layer assembly and the support frame to each other via a first ultraviolet curable adhesive; and, after the membrane electrode gas diffusion layer assembly and the support frame are bonded to each other, bonding the support frame and the separator to each other via a second ultraviolet curable adhesive.

公开(公告)号：US10181607B2

公开(公告)日：2019-01-15

申请号：US15660085

申请日：2017-07-26

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA ,  TOYOTA SHATAI KABUSHIKI KAISHA

Inventor： Kazunori Shibata ,  Hiroya Nakaji ,  Hiroki Okabe ,  Yoshinori Shinozaki ,  Kousuke Kawajiri ,  Satoshi Futami ,  Takamasa Kanie

IPC: H01M8/0254 ,  H01M8/04119 ,  H01M8/0202 ,  H01M8/026 ,  H01M8/1004 ,  H01M8/0258 ,  H01M8/0206 ,  H01M8/1018

Abstract: A gas flow passage-forming member is disposed between a membrane electrode and gas diffusion layer assembly and a separator of a fuel cell, and the gas flow passage-forming member is configured to form a gas flow passage. The gas flow passage-forming member has a corrugated shape such that groove portions and ridge portions are provided on each of a front side and a back side of the gas flow passage-forming member. The groove portions each serve as the gas flow passage. The gas flow passage-forming member has communication holes providing communication between the front side and the back side, and the communication holes are provided in a region downstream of an upstream region in a gas flow direction. The upstream region is a non-communication region with no communication hole.

公开(公告)号：US10038202B2

公开(公告)日：2018-07-31

申请号：US14918871

申请日：2015-10-21

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Hiroki Okabe ,  Norishige Konno

IPC: H01M2/38 ,  H01M8/0247 ,  H01M8/0267 ,  H01M8/1018

CPC classification number: H01M8/0247 ,  H01M8/0267 ,  H01M2008/1095

Abstract: A fuel cell separator 10 includes a power generation section 10B provided in a central region on a surface of the separator formed into a plate, a plurality of manifolds 11A, 11B, 12A, and 12B provided in a region closer to the outer periphery than the power generation section 10B, and a reinforcing portion 14A provided so as to extend from a manifold beam portion 15 formed between the plurality of manifolds 11A, 11B, 12A, and 12B to a gap region 13 formed between the power generation section 10B and the manifolds 11A, 11B, 12A, and 12B.

公开(公告)号：US12134325B2

公开(公告)日：2024-11-05

申请号：US17659779

申请日：2022-04-19

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Hiroki Okabe ,  Kimio Saito

IPC: B60L50/75 ,  B60L58/40 ,  B64D27/24 ,  B64D41/00

Abstract: To provide a fuel cell system configured to charge a battery with maintaining the independence and redundancy of a fuel cell and a battery as power sources. A fuel cell system for air vehicles, wherein the fuel cell system comprises a fuel cell, a battery, a motor and a controller; wherein the fuel cell and the battery are connected to the motor as independent power sources, and the motor includes a double three-phase winding that uses a double inverter; and wherein, when normal output is requested from the motor, the controller operates the motor by a predetermined first output from the fuel cell, and the controller charges the battery by a torque generated in the motor.