Including Heat Exchange Means Patents (Class 429/434)
  • Patent number: 10741852
    Abstract: A bipolar plate for an electrochemical reactor is provided, including first and second opposing outer conductive faces, and including first flow channels formed on the first outer conductive face, extending in a same direction; first injection orifices formed in the first outer conductive face; and a first homogenization zone formed on the first outer conductive face and including homogenization channels, each connecting a first injection orifices to a plurality of the first flow channels, and each sub-dividing into a plurality of branches extending from the first injection orifice to one of the first flow channels.
    Type: Grant
    Filed: July 16, 2015
    Date of Patent: August 11, 2020
    Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventor: Jean-Philippe Poirot-Crouvezier
  • Patent number: 10720660
    Abstract: A fuel cell stack includes a coolant channel provided between a first separator of a first power generation cell among power generation cells and a second separator of a second power generation cell among the power generation cells which is adjacent to the first power generation cell. A coolant manifold is connected to the coolant channel. A coolant manifold end member is connected to the coolant manifold. The coolant manifold end member includes an air vent wall having an opening provided at an uppermost position of the coolant manifold end member in a height direction of the fuel cell stack. The coolant manifold end member includes a wall which surrounds the air vent wall and which is thinner than the air vent wall. The air vent pipe protrudes from the air vent wall. The air vent pipe and the coolant manifold end member are integrally made.
    Type: Grant
    Filed: March 9, 2017
    Date of Patent: July 21, 2020
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Yusuke Nara, Motohiro Takahashi, Daisuke Okonogi
  • Patent number: 10714780
    Abstract: The present invention relates to a separator and a fuel cell stack comprising the same, and according to one aspect of the present invention, there is provided a separator comprising: a plurality of riblet elements arranged to be spaced apart at a predetermined interval; and a plurality of connecting bars connecting two adjacent riblet elements, wherein each of the riblet elements comprises a contact portion having a predetermined area, and a first partition wall and a second partition wall each extended from both sides of the contact portion, the space formed by the first partition wall, the contact portion and the second partition wall is opened along the connection direction of the connecting bar, and at least two riblet elements are provided such that each of the contact portions has a different area.
    Type: Grant
    Filed: July 19, 2016
    Date of Patent: July 14, 2020
    Assignee: LG CHEM, LTD.
    Inventors: Hye Mi Jung, Jae Choon Yang, Jee Hoon Jeong
  • Patent number: 10707505
    Abstract: A cathode gas cooling system provided with a heat exchanger having first internal channels into which cathode gas flows and second internal channels to which water discharged from a fuel cell is supplied and cooling cathode gas flowing through the first internal channels by latent heat of vaporization of water flowing through the second internal channels. The first internal channels and second internal channel are are respectively made independent channels inside the heat exchanger so that steam produced inside the second internal channels by heat exchange with cathode gas flowing through the first internal channels does not flow into the first internal channels.
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: July 7, 2020
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yuya Kusano, Hideaki Mizuno
  • Patent number: 10693150
    Abstract: A stack is provided for manufacturing bipolar plates for fuel cells. Each bipolar plate includes two sheets that are in a superimposed position relative to each and separated by a layer of filler material between the two sheets. The stack includes, in an alternately arranged manner, bipolar plates and intermediate plates. At least one of the intermediate plates has a plurality of slots passing through the intermediate plate in a direction of a thickness of the intermediate plate.
    Type: Grant
    Filed: July 28, 2016
    Date of Patent: June 23, 2020
    Assignee: Compagnie Generale des Etablissements Michelin
    Inventor: Claude Blanc
  • Patent number: 10665874
    Abstract: A combined cooling system for a fuel cell vehicle and a control method thereof is capable of improving cooling performance and fuel efficiency by using interlocking control in various situations and by additionally adding a bypass loop and a control valve to a main line connecting a fuel cell, an electric component, a radiator, and a pump.
    Type: Grant
    Filed: November 8, 2017
    Date of Patent: May 26, 2020
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Boung Ho Min, Dong Hun Lee, Soon Il Jeon
  • Patent number: 10665871
    Abstract: The invention relates to a fuel cell stack having bipolar plates (10), each of which has two separator plates (12, 14) with an active region (16) and two distribution regions (18, 20) with main gas ports (22, 24) as well as a coolant main port (26), wherein the separator plates (12, 14) are formed and arranged one over the other in such a way that the respective bipolar plate (10) has separate channels (28, 30, 32) for the reaction gases and the coolant that connect the main gas port (22, 24) for the reaction gases and the coolant main port (26) of the two distribution region (18, 20) to each other. It is provided that the channels (28) for a reaction gas have an impermeable first dividing plate (38) in an inlet area (40) of the active area (16) that separates the channels (28) into two volume areas (58, 60), and in that a second main gas port (23) is provided adjacent to the first main gas port (22) in a distribution region (18) in order to supply the reaction gas.
    Type: Grant
    Filed: November 14, 2016
    Date of Patent: May 26, 2020
    Assignees: VOLKSWAGEN AG, AUDI AG
    Inventors: Hannes Scholz, Jan-Philipp Brinkmeier, Daniel Grundei, Christian Lucas, Christian Schlitzberger
  • Patent number: 10651495
    Abstract: A fuel cell includes a first separator and a second separator. A second protrusion is formed on a first sealing portion of the first separator. A concave portion is formed in a second sealing portion of the second separator. When fuel cells are stacked together sequentially in the vertical direction without displacing relative to one another, the center of the second protrusion and the center of the concave portion are aligned with each other. Even if the fuel cells are displaced while being stacked together, the upper fuel cell in the vertical direction is moved to decrease the distance between the center of the second protrusion and the center of the corresponding concave portion.
    Type: Grant
    Filed: May 8, 2015
    Date of Patent: May 12, 2020
    Assignees: TOYOTA SHATAI KABUSHIKI KAISHA, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Keiji Hashimoto, Satoshi Futami, Kousuke Kawajiri, Nobuaki Nonoyama
  • Patent number: 10644331
    Abstract: A rapid start power unit and a method of operating a rapid start power unit are disclosed. A fuel cell converts combustible fuel into electrical power during a normal operational period after an initial start-up period when little to no electrical energy is produced. One combustion chamber receives unspent fuel emitted by the fuel cell and combusts the unspent fuel to generate a first heated gas stream. Another combustion chamber receives combustible fuel and burns the combustible fuel to generate a second heated gas stream during the initial start-up period. A turbine receives and is driven by the first and second heated gas streams to drive a drive shaft. A generator coupled to the drive shaft generates electrical power during the initial start-up period and supplemental power during the normal operational period. In an alternative embodiment, a two-stage combustion chamber is used instead of two serially-arranged separate combustion chambers.
    Type: Grant
    Filed: October 24, 2016
    Date of Patent: May 5, 2020
    Assignee: The Boeing Company
    Inventors: Tina Stoia, Shailesh Atreya, Chellappa Balan, David Whelan, David J. Glll, Vincent J. Castelli
  • Patent number: 10637083
    Abstract: The invention relates to a method for ascertaining the overvoltage of a working electrode in a fuel cell, in which the potential of a reference electrode compared to the grounded counter electrode is measured. For the measurement, a fuel cell comprising a polymer electrolyte membrane is used, in which the counter electrode comprises a lateral edge having at least one convexly curved region, and the electrolyte membrane surface, adjoining the counter electrode, comprises an electrode-free region in which the reference electrode is disposed on the electrolyte membrane surface. In contrast, the working electrode is continuous, which is to say has a large surface.
    Type: Grant
    Filed: February 18, 2016
    Date of Patent: April 28, 2020
    Assignee: Forschungszentrum Juelich GmbH
    Inventor: Andrei Kulikovsky
  • Patent number: 10637078
    Abstract: A fuel cell disclosed herein may comprise: a substrate provided with a recess through which fuel gas passes; an electrolyte membrane covering an opening of the recess; an insulating film covering one surface of the electrolyte membrane and having a through hole reaching the electrolyte membrane; a first electrode in contact with the one surface of the electrolyte membrane in the through hole; a second electrode in contact with the other surface of the electrolyte membrane; and a heater disposed in the insulating film at a position adjacent to the through hole.
    Type: Grant
    Filed: February 8, 2018
    Date of Patent: April 28, 2020
    Assignee: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Hirofumi Funabashi, Teruhisa Akashi, Hiroko Iguchi, Hidehito Matsuo, Shigeo Hori
  • Patent number: 10637080
    Abstract: A composite plate (26) is formed in a mold (8) by placing one of two preforms (15, 23) of between about 80 wt. % and about 85 wt. % flake graphite, balance polymer binder, into the mold and disposing a coolant tube array (18) thereon, depositing a powder (21) of the flake/polymer around the tube array, placing a second preform on the powder and a mold plunger (27) on the second preform, heating the mold to the melting temperature of the polymer under a pressure of 625 psi (4311 kPa), cooling the mold to the solidification temperature of the polymer while still under pressure, cooling the mold further, disassembling the mold, and removing the composite plate. The composite plate has reactant gas flow field channels (31, 32) in major surfaces thereof, is devoid of any acid edge protection layer or film and is devoid of any acid impervious separator plate between either of the fuel cell reactant gas flow fields and the coolant tube array.
    Type: Grant
    Filed: October 25, 2011
    Date of Patent: April 28, 2020
    Assignee: DOOSAN FUEL CELL AMERICA, INC.
    Inventors: Richard D. Breault, Kishore Kumar Tenneti, Sridhar V. Kanuri, Richard J. Rempe
  • Patent number: 10601053
    Abstract: A separator plate for an electrochemical system has at least one passage opening for forming a media channel for feeding or discharging media. At least one bead arrangement arranged around the at least one passage opening, for the purpose of sealing the passage opening is provided. At least one of the flanks of the bead arrangement has at least one opening for conducting a medium through the bead flank. At least one guide channel is connected, on an exterior of the bead arrangement, to the openings in the bead flank and is fluidically connected to a bead interior via the opening in the bead flank. The guide channel is designed such that a guide channel height perpendicularly to the flat surface plane of the separator plate increases at least in some sections in the direction of said bead arrangement.
    Type: Grant
    Filed: September 16, 2016
    Date of Patent: March 24, 2020
    Assignee: Reinz-Dichtungs-GmbH
    Inventors: Claudia Kunz, Stephan Wenzel
  • Patent number: 10601064
    Abstract: A fluid distribution device distributes at least two fluids of a fuel cell. The fluid distribution device comprises a block body, first and second external manifolds and first and second communicating portions. The block body includes a side surface that receives the fuel cell. The first external manifold is disposed adjacent the side surface. The second external manifold is disposed away from the side surface. The first and second external manifolds partially overlap, as viewed from the side surface. The second external manifold includes an extension portion that does not overlap with the first external manifold as viewed from the side surface. The first communicating portion has a first hole only communicating a first fluid to the first external manifold from the side surface. The second communicating portion has a second hole portion only communicating a second fluid to the extension portion from the side surface.
    Type: Grant
    Filed: July 14, 2017
    Date of Patent: March 24, 2020
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Takuya Hasegawa, Ryuji Fujieda
  • Patent number: 10593969
    Abstract: A fuel cell vehicle has a front compartment accommodating a hydrogen pump provided to a pipe through which fuel gas is supplied, and a gas-liquid separator that is fastened to the hydrogen pump and removes water from the fuel gas flowing through the pipe, the gas-liquid separator having an end portion on a backward side in a travelling direction arranged more on the backward side than an end portion of the hydrogen pump on the backward side in the travelling direction. A fastening portion, at which the hydrogen pump and the gas-liquid separator are fastened to each other, has a center of gravity CGLS shifted from a center of gravity CHP of the hydrogen pump in a width direction of the fuel cell vehicle, in the fuel cell vehicle as viewed in a vertical direction.
    Type: Grant
    Filed: May 30, 2018
    Date of Patent: March 17, 2020
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Makoto Takeyama, Tomoyuki Kozuka
  • Patent number: 10581092
    Abstract: An ion exchanger for a cooling system of a fuel cell system includes: a communicating pipe part with the two ends thereof configured respectively to be connectable to predetermined piping arranged in the cooling system, and including a substantially linear shaped first flow path; and a storage case including a second flow path configured such that, when a part of the coolant introduced into the communicating pipe part branches from the coolant of the communicating pipe part and flows toward the second flow path, such partial coolant, after introduced into the second flow path, is allowed to flow therethrough and join again the remaining coolant of the communicating pipe part, while ion exchange resin is stored in the second flow path, wherein an introduction device for introducing the coolant into the second flow path is arranged in the inside of the communicating pipe part.
    Type: Grant
    Filed: June 30, 2017
    Date of Patent: March 3, 2020
    Assignee: TOYODA GOSEI CO., LTD.
    Inventors: Naoki Yamaguchi, Tatsuya Ojio, Yoshiki Nakamura, Takeshi Hattori
  • Patent number: 10581106
    Abstract: An internally-manifolded solid oxide fuel cell (SOFC) stack is described, including an anode interconnect structure integrated with a cathode interconnect structure. The anode interconnect structure includes a fuel flow field; and the cathode interconnect structure includes an air flow field. The two structures are configured to allow for parallel flow of air and fuel across a plane of the interconnect, while the manifold openings for the fuel are arranged in a cross-flow orientation across a plane of the interconnect structure. Related processes are also described, along with a power generation system that includes an SOFC incorporating this type of interconnect, attached directly or indirectly to at least one power block, such as a combustion engine.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: March 3, 2020
    Assignee: Cummins Enterprise LLC
    Inventor: Keith Garrette Brown
  • Patent number: 10573899
    Abstract: Electrochemical cells, such as those present within flow batteries, can include at least one electrode with one face being more hydrophilic than is the other. Such electrodes can lessen the incidence of parasitic reactions by directing convective electrolyte circulation toward a separator in the electrochemical cell. Flow batteries containing the electrochemical cells can include: a first half-cell containing a first electrode with a first face and a second face that are directionally opposite one another, a second half-cell containing a second electrode with a first face and a second face that are directionally opposite one another, and a separator disposed between the first half-cell and the second half-cell. The first face of both the first and second electrodes is disposed adjacent to the separator. The first face of at least one of the first electrode and the second electrode is more hydrophilic than is the second face.
    Type: Grant
    Filed: October 18, 2016
    Date of Patent: February 25, 2020
    Assignee: Lockheed Martin Energy, LLC
    Inventors: Jeremy Loretz, Srivatsava Venkataranga Puranam, Helen Elizabeth Vanbenschoten
  • Patent number: 10573911
    Abstract: A solid oxide fuel cell (SOFC) system includes inner and outer enclosure walls each formed as an independent thermally conductive path. Each thermally conductive path comprises materials having a coefficient of thermal conductivity of greater than 100 W/m° K. The inner and outer enclosure walls are each thermally conductively coupled with an annular enclosure formed to enclose a fuel reformer module. The annular enclosure provides a fourth thermally conductive path disposed between the inner and outer enclosure walls having a coefficient of thermal conductivity of 50 W/m° K or less. A temperature sensor and thermal fuse are mounted to an outside surface of the outer enclosure. An active sensor and a passive fuse are provided to interrupt a flow of fuel into the fuel reformer when a temperature of the outer enclosure walls equal or exceed a failsafe operating temperature.
    Type: Grant
    Filed: October 6, 2016
    Date of Patent: February 25, 2020
    Assignee: Upstart Power, Inc.
    Inventors: Nathan Palumbo, Joshua Persky
  • Patent number: 10566636
    Abstract: An end cell heater assembly includes: a case which has a first surface joined to an end plate of a fuel cell stack; a planar heating element installed in an accommodating groove formed in a second surface of the case; a terminal plate which is stacked and interposed between the planar heating element and an end cell of the fuel cell stack, joined and electrically connected to the end cell, and transferring heat generated by the planar heating element to the end cell; and a terminal which is integrally formed with the terminal plate so as to output electrical energy generated by the fuel cell stack and transferred through the terminal plate, to the outside.
    Type: Grant
    Filed: December 14, 2016
    Date of Patent: February 18, 2020
    Assignees: Hyundai Motor Company, Kia Motors Corporation, Hanon Systems
    Inventors: Ju Han Kim, Sun Heum Baek, Young Bum Kum, Dae Jong Kim, Kil Sang Jang
  • Patent number: 10566645
    Abstract: Separators of multiple types capable of supplying and diffusing fluids such as an anode gas, cathode gas and coolant uniformly are prepared and combined to construct a fuel cell stack. Such a cell stack (20) for fuel cells includes separators of at least two types (types CA, C, A, C, CW and AW) for anode gas and cathode gas. Each separator is such that a corrosion-resistance layer is formed on at least one face of a metal plate (30) and a fluid supply and diffusion layer for the corresponding gas is formed by an electrically conductive porous layer on the corrosion-resistant layer. The at least two separators are stacked so as to face each other with at least an electrolyte membrane and catalyst layers on both sides of the membrane (a new membrane electrode assembly N-MEA) being sandwiched between the fluid supply and diffusion layers of the separators.
    Type: Grant
    Filed: May 17, 2016
    Date of Patent: February 18, 2020
    Assignee: UNIVERSITY OF YAMANASHI
    Inventor: Masahiro Watanabe
  • Patent number: 10543872
    Abstract: A vehicle front structure includes a pair of front side members, the front side members being respectively placed on the right side and on the left side in a vehicle width direction in a vehicle front space ahead of a vehicle cabin space in a vehicle, so as to extend in a vehicle front-rear direction. A fuel cell unit is placed in a region sectioned by the front side members in the vehicle front space. A high-voltage component is placed above the front side members, and an inner edge portion of the high-voltage component in the vehicle width direction is placed outwardly in the vehicle width direction from an inner edge portion of the front side member in the vehicle width direction.
    Type: Grant
    Filed: March 29, 2018
    Date of Patent: January 28, 2020
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Takayuki Kirimoto
  • Patent number: 10547064
    Abstract: A fuel cell flow field plate providing a uniform gas flow pressure includes a first metal plate and a second metal plate. The first metal plate defines a first opening for providing a first reactant gas to a fuel cell with a first metal bead that surrounds the first opening. The first metal bead is an embossment that defines a first channel. A first plurality of tunnels provides a passage into and out of the first metal bead. Each tunnel of the first plurality of tunnels has an inlet tunnel section that leads to the first metal bead and an outlet tunnel section that extends from the first metal bead to provide the first reactant gas to first reactant gas flow channels defined by the first metal plate. Characteristically, the inlet tunnel section and the outlet tunnel section each having a curved cross section with an opened base side.
    Type: Grant
    Filed: October 5, 2016
    Date of Patent: January 28, 2020
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Siguang Xu, Xi Yang, Ivan D. Chapman, Liang Xi
  • Patent number: 10530003
    Abstract: A solid oxide fuel cell of the present invention includes: a fuel cell unit including a fuel electrode, a solid electrolyte and an air electrode layered in the written order; a current collection assisting layer that is layered on an air electrode side of the fuel cell unit; air channels disposed on the air electrode side; and fuel gas channels disposed on a fuel electrode side. The air channels and the fuel gas channels are defined and formed by a current collector on the current collection assisting layer and a current collector on the fuel electrode side of the fuel cell unit. The air channels and the fuel gas channels extend in the same direction that is perpendicular to the fuel cell unit layering direction.
    Type: Grant
    Filed: November 8, 2016
    Date of Patent: January 7, 2020
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Kentarou Yajima, Masanari Yanagisawa
  • Patent number: 10530023
    Abstract: A cooling element is provided for at least one object, in particular for a high-voltage battery. The cooling element includes a coolant inlet, to which a refrigerant can be supplied and which is connected to a main line. The cooling element is designed to transfer heat from the object to the refrigerant. The cooling element further includes at least one distributor which distributes the refrigerant from the main line to a plurality of parallel lines, wherein the refrigerant is present in the cooling element as a two-phase mixture and the distributor is configured to distribute the refrigerant uniformly to the parallel lines.
    Type: Grant
    Filed: June 10, 2016
    Date of Patent: January 7, 2020
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Nicolas Flahaut, Sebastian Siering
  • Patent number: 10508347
    Abstract: A photovoltaic apparatus comprising: at least one photovoltaic surface electrically connected to a set of photovoltaic electrodes; and a chemical reactor electrically connected to the set of photovoltaic electrodes. The chemical reactor enables N pairwise fluid contacts among k chemical fluids, with k?2 and N?4 and comprises: a reaction layer extending in a plane subtended by two directions; N chemical cells, each including two circuit portions, designed for enabling circulation of two of the k chemical fluids, respectively, the two circuit portions intersecting each other, thereby enabling one pairwise fluid contact for the two of the k chemical fluids; and a fluid distribution circuit comprising: k sets of inlet orifices sequentially alternating along lines parallel to one of the two directions; and k sets of outlet orifices sequentially alternating along lines parallel to the inlet orifices, and wherein, each circuit portion connects an inlet orifice to an outlet orifice.
    Type: Grant
    Filed: July 16, 2018
    Date of Patent: December 17, 2019
    Assignee: International Business Machines Corporation
    Inventors: Werner Escher, Patrick Ruch
  • Patent number: 10461350
    Abstract: Disclosed is an electrochemical reaction cell enhancing a reduction reaction. The electrochemical reaction cell enhancing a reduction reaction comprises: a membrane electrode assembly including a polymer electrolytic membrane, a cathode formed by sequentially stacking a first gas diffusion layer and a first catalyst layer on one surface of the electrolytic membrane, and an anode formed by sequentially stacking a second catalyst layer and a second gas diffusion layer on the other surface of the electrolytic membrane; a first distribution plate stacked on the first catalyst layer to supply a reaction gas and a cathode electrolytic solution dissolved with the reaction gas to the first catalyst layer along separate channels; and a second distribution plate stacked on the second gas diffusion layer to supply an anode electrolytic solution to the second gas diffusion layer.
    Type: Grant
    Filed: August 25, 2017
    Date of Patent: October 29, 2019
    Assignee: Korea Institute of Science and Technology
    Inventors: Jong Hyun Jang, Hyoung-Juhn Kim, Sung Jong Yoo, Jin Young Kim, Hyung Chul Ham, Dirk Henkensmeier, So Young Lee, Hyun Seo Park, Youngseung Na, Min Gwan Ha
  • Patent number: 10374237
    Abstract: A bipolar plate for a fuel cell, including a profiled anode plate and a profiled cathode plate each having an active region and two distributor regions with an anode gas main port for feeding and discharging fuel, a cathode gas main port for feeding and discharging oxidation agents, and a coolant main port for feeding and discharging coolant, these being arranged along a side edge. The bipolar plate includes distributor regions including at least one overlap section in which channels intersect one another in a non-fluidically connecting manner. The cathode gas main port is arranged between the anode gas main port and the coolant main port, cathode channels extend linearly from the port at least across the distributor region of the bipolar plate and, in a first overlap section, anode channels, and cathode channels intersect one another and form an angle of between 0° and 90°.
    Type: Grant
    Filed: April 2, 2015
    Date of Patent: August 6, 2019
    Assignee: Audi AG
    Inventors: Benno Andreas-Schott, Markus Ritter
  • Patent number: 10374241
    Abstract: The present invention comprises a plurality of fuel cells connected to each other in series, and a reformer configured to reform raw fuel, wherein reformed fuel by the reformer is supplied to a first stage of the plurality of fuel cells, and the fuel cell on the first stage is provided with a methane reaction suppressing function which suppresses reaction of methane included in the reformed fuel to a larger extent than at least one fuel cell on a second and later stages. Suppressing temperature drop due to endothermic reaction in the fuel cell on the first stage can improve the efficiency of electric power generation of the fuel cell system having the plurality of fuel cells arranged in series.
    Type: Grant
    Filed: July 8, 2015
    Date of Patent: August 6, 2019
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Tatsuya Yaguchi, Motohisa Kamijo
  • Patent number: 10361448
    Abstract: A power generation cell of a fuel cell stack has a plurality of first introduction flow paths arranged along a direction of gravity to introduce the reaction gas to a power generation region. The dummy cell has a plurality of second introduction flow paths arranged along the direction of gravity to introduce the reaction gas to a central region. The fuel cell stack has at least one of a first configuration in which the flow path width of the second introduction flow path at a lowermost end in the direction of gravity is narrower than the average flow path width of the second introduction flow paths, and a second configuration in which the flow path width of the first introduction flow path at a lowermost end in the direction of gravity is wider than the average flow path width of the first introduction flow paths.
    Type: Grant
    Filed: December 6, 2017
    Date of Patent: July 23, 2019
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Daisuke Hayashi, Daisuke Kanno
  • Patent number: 10361439
    Abstract: The invention relates to a fuel cell (1), a fuel cell stack (10) having at least two fuel cells (1), a fuel cell device having a fuel cell stack and a motor vehicle having a fuel cell device. In order to prevent a production-related mispositioning of a membrane electrode assembly (13) of the fuel cell (1) from causing obstructions in the operating media flow, it is provided according to the invention that at least one of the bipolar plates (2, 3) projects farther into an operating media line (4) than the other of the bipolar plates (2, 3).
    Type: Grant
    Filed: December 15, 2015
    Date of Patent: July 23, 2019
    Assignees: VOLKSWAGEN AG, AUDI AG
    Inventor: Brian Dickson
  • Patent number: 10355288
    Abstract: A fuel cell includes a reaction layer including: a membrane electrode assembly (MEA); and gas diffusion layers (GDLs) each of which is disposed at both side surfaces of the MEA. A porous separation layer has one surface adhered to one surface of the reaction layer and supplied with reaction gas, and a cathode bipolar plate has a panel shape and adhered to another surface of the porous separation layer. A front end part of the cathode bipolar plate having a manifold that is supplied with the reaction gas and having a plurality of diffusion channels through which the reaction gas directs from the manifold toward the porous separation layer. The cathode bipolar plate has a partition wall channel which separates the porous separation layer, which extends in a direction in which the reaction gas flows, and which extends from the manifold in a diagonal direction.
    Type: Grant
    Filed: May 5, 2016
    Date of Patent: July 16, 2019
    Assignee: HYUNDAI MOTOR COMPANY
    Inventors: Kyung Min Kim, Yoo Chang Yang, Sang Mun Jin
  • Patent number: 10312535
    Abstract: There is provided a fuel cell system. The fuel cell system includes a gas pump that is configured to have a rotating body and circulate an exhaust gas discharged from a fuel cell and is provided in a circulation passage configured to connect a discharge passage of the exhaust gas with a fuel gas supply passage. When temperature of the fuel cell is higher than a reference temperature that is a temperature that allows water to be introduced in a supercooled state into the gas pump, the fuel cell system controls the rotation speed of the rotating body of the gas pump to a first rotation speed corresponding to a power generation demand for the fuel cell. When the temperature of the fuel cell is not higher than the reference temperature, the fuel cell system controls the rotation speed of the rotating body of the gas pump to a second rotation speed that is lower than the first rotation speed.
    Type: Grant
    Filed: August 25, 2016
    Date of Patent: June 4, 2019
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Tomio Yamanaka, Mitsuhiro Nada, Yoshiaki Naganuma, Masashi Toida
  • Patent number: 10312529
    Abstract: A fuel cell stack is constituted by stacking fuel cells including a membrane electrode assembly constituted by sandwiching an electrolyte membrane with a pair of electrodes and a pair of separators that have flow passages through which gas to be supplied to the membrane electrode assembly flows, the pair of separators being arranged across the membrane electrode assembly. The fuel cell stack includes a welded portion where the separators adjacent to one another in a stacking direction of the fuel cell are welded. The separator in the stacking direction at the welded portion has a height lower than a height of the separator other than the welded portion.
    Type: Grant
    Filed: October 6, 2015
    Date of Patent: June 4, 2019
    Assignee: NISSAN MOTOR CO., LTD.
    Inventor: Takanori Oku
  • Patent number: 10312543
    Abstract: An apparatus is provided to stack a fuel cell stack by stacking and pressurizing a separating plate components, including a membrane-electrode assembly (MEA) sheet component, in which gas diffusion layers are bonded to both surfaces of an MEA, respectively. A component stacking unit is installed at in a frame and grips the separating plate component and the MEA sheet component and stacks the components on a stack guide. A component pressurizing unit is installed at an upper side of a transfer route, through which the stack guide is transferred, and pressurizes the separating plate component and the MEA sheet component stacked on the stack guide. An end plate loading unit grips each of upper and lower end plates and loads them onto the stack guide. A transferring unit transfer a stack body of the separating plate component and the MEA to a complete end of the transfer route.
    Type: Grant
    Filed: March 28, 2018
    Date of Patent: June 4, 2019
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: HoKyun Ju, Yoon Jang
  • Patent number: 10301179
    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.
    Type: Grant
    Filed: October 6, 2017
    Date of Patent: May 28, 2019
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Osamu Sakai, Kunihiro Ukai, Hidenobu Wakita, Yukimune Kani, Yuuichi Yakumaru, Takashi Sotoku
  • Patent number: 10297841
    Abstract: A fuel cell includes a frame equipped membrane electrode assembly and a metal separator. The frame equipped membrane electrode assembly includes a membrane electrode assembly and a frame shaped insulating member connected to the membrane electrode assembly. The frame shaped insulating member is provided around the membrane electrode assembly. The metal separator includes a first bipolar plate and a second bipolar plate joined together, and the frame shaped insulating member includes a welding portion welded to the first bipolar plate by resistance welding.
    Type: Grant
    Filed: March 29, 2016
    Date of Patent: May 21, 2019
    Assignee: Honda Motor Co., Ltd.
    Inventors: Yoshiyuki Nitta, Yasuhide Fukushima, Masaaki Sakano, Shintaro Sumi
  • Patent number: 10297842
    Abstract: A fuel cell stack includes a stacked body, a first insulator and a second insulator. The stacked body includes power generation cells. The power generation cells are stacked in a stacking direction. The power generation cells include a first end power generation cell a second end power generation cell. Each of the power generation cells includes a membrane electrode assembly, a cathode separator and an anode separator. The first end power generation cell has an outermost cathode separator. The second end power generation cell has an outermost anode separator. The first insulator has a first recess in which a first heat-insulating body and a first terminal plate are accommodated. The second insulator has a second recess in which a second heat-insulating body and a second terminal plate are accommodated. A first number of first stacked heat-insulating layers is larger than a second number of second stacked heat-insulating layers.
    Type: Grant
    Filed: October 13, 2016
    Date of Patent: May 21, 2019
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Tadashi Nishiyama, Kenji Nagumo, Ryo Jinba, Yoshiro Ichikawa, Yuta Ikeda
  • Patent number: 10294568
    Abstract: There is provided a metal plate coated stainless material (100) which includes a stainless steel sheet (10) having formed thereon a passivation film (11) having a Cr/O value in the range of 0.05 to 0.2 and a Cr/Fe value in the range of 0.5 to 0.8 at the surface as measured by an Auger electron spectroscopy analysis and a metal plated layer (20) formed on the passivation film (11) of the stainless steel sheet (10), in which the metal plated layer (20) is a plated layer formed from any one metal selected from among Ag, Pd, Pt, Rh, Ru, Cu, Sn and Cr, or an alloy of these metals.
    Type: Grant
    Filed: September 11, 2014
    Date of Patent: May 21, 2019
    Assignee: TOYO KOHAN CO., LTD.
    Inventors: Nobuaki Mukai, Takahiro Yoshida
  • Patent number: 10290878
    Abstract: A fuel cell comprises a membrane electrode assembly configured such that electrode catalyst layers are formed on respective surfaces of an electrolyte membrane; gas diffusion layers placed on respective surfaces of the membrane electrode assembly; and a frame placed around periphery of the membrane electrode assembly. The membrane electrode assembly has a protruding portion that is configured by protruding outside of the gas diffusion layer in a state that the membrane electrode assembly is combined with the gas diffusion layers. The frame has an engagement portion that is configured to engage with the protruding portion. An adhesive layer is formed from an ultraviolet curable adhesive between the protruding portion and the engagement portion.
    Type: Grant
    Filed: March 17, 2015
    Date of Patent: May 14, 2019
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Kotaro Ikeda, Hikaru Hasegawa, Naohiro Asada, Makoto Yoshida, Tomokazu Hayashi, Michihisa Mochizuki
  • Patent number: 10283798
    Abstract: A fluid flow guide plate for an electrochemical reactor. The plate includes, on a single surface: a flow collector; a plurality of flow channels, provided on the plate to ensure fluid flow and extending in a single longitudinal direction; an exchange channel, extending in a direction transverse to the flow channels; a plurality of supply channels that are fluidly connected, on a first side, to the flow collector by a first end and, on a second side, to the exchange channel by a second end. The exchange channel puts the flow channels in communication with one another and includes at least one obstacle provided to partially close off the flow between the second ends and the flow channels.
    Type: Grant
    Filed: September 16, 2015
    Date of Patent: May 7, 2019
    Assignee: COMMISSARIAT À L'ÉNERGIE ATOMIQUE ET AUX ÉNERGIES ALTERNATIVES
    Inventor: Jean-Philippe Poirot-Crouvezier
  • Patent number: 10270119
    Abstract: The present invention is concerned with improved fuel cell stack assembly arrangements.
    Type: Grant
    Filed: March 12, 2015
    Date of Patent: April 23, 2019
    Assignee: Ceres Intellectual Property Company Limited
    Inventors: Robert Leah, Adam Bone, Lee Rees
  • Patent number: 10270113
    Abstract: The invention relates to a metal battery, and in particular, to a metal battery including a liquid anode and a liquid cathode. The metal batteries can operate at ambient temperature and can be prepared fully uncharged for safe transport and storage.
    Type: Grant
    Filed: December 13, 2013
    Date of Patent: April 23, 2019
    Assignee: Nanyang Technological University
    Inventors: Rachid Yazami, Kim Seng Tan
  • Patent number: 10259291
    Abstract: A temperature control system includes cooling circuitry, refrigerant circuitry, and flow control circuitry. A valve mechanism in the flow control circuitry is adjustable between a closed state and an open state to transition the cooling circuitry between a series-flow configuration and a parallel-flow configuration, and to thermally decouple and thermally couple the cooling circuitry from the refrigerant circuitry.
    Type: Grant
    Filed: August 4, 2017
    Date of Patent: April 16, 2019
    Assignee: Caterpillar Inc.
    Inventor: Thomas Aldridge
  • Patent number: 10256486
    Abstract: The invention provides a fuel cell (A1) in which a frame body (20) provided with a membrane electrode assembly (30) is sandwiched between a pair of separators (40, 41), and multiple projections (21) are arranged at given intervals on each of two surface sides of the frame body (20). Thus, a gas flow path (S1) for a hydrogen-containing gas is defined and formed on one surface side of the frame body (20) and a gas flow path (S2) for an oxygen-containing gas is defined and formed on the other surface side of the frame body (20). The projections (21) on the one surface side of the frame body (20) and the projections (21) on the other surface side of the frame body (20) are arranged asymmetrically with respect to the frame body (20) in a stacking direction (?) of the fuel cell.
    Type: Grant
    Filed: April 3, 2012
    Date of Patent: April 9, 2019
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Takanori Oku, Shigetaka Uehara, Mitsutaka Abe
  • Patent number: 10256514
    Abstract: Systems are disclosed for battery modules/systems with cooling systems. In accordance with disclosed embodiments, the cooling system may be disposed against an external surface of a housing of the battery system. The cooling system may utilize air as a coolant to remove heat generated by cells within the battery module, to prevent the cells from aging prematurely. Embodiments of the cooling system may include manifolds, channels, fins, or a combination thereof, which may route the cooling air along the surface of the battery module housing. Such features may create an isothermal temperature distribution within the battery system.
    Type: Grant
    Filed: April 1, 2013
    Date of Patent: April 9, 2019
    Assignee: Johnson Controls Technology LLC
    Inventors: Kem M. Obasih, Richard M. DeKeuster
  • Patent number: 10243220
    Abstract: An electrochemical cell includes a membrane electrode assembly and a bipolar plate. The membrane electrode assembly includes a proton exchange membrane and first and second electrodes. The bipolar plate includes conductive sheets, coolant flow channels are made between the conductive sheets. An outer face of a conductive sheet includes reactant flow channels and a first rib extending on the side of the reactant flow channels. A gasket extends on the first rib. The bipolar plate includes an intermediate zone extending between the first rib and the first electrode, a first band in which the sheets have complementary shapes nested one in the other over the entire length of a coolant flow channel, and a second band in which a sheet includes reliefs in contact with the membrane electrode assembly.
    Type: Grant
    Filed: November 15, 2016
    Date of Patent: March 26, 2019
    Assignee: Commissariat A L'Energie Atomique et aux Energies Alternatives
    Inventor: Jean-Philippe Poirot-Crouvezier
  • Patent number: 10236536
    Abstract: A secondary battery including: an electrode assembly including a first electrode, a second electrode, and a separator interposed between the first electrode and the second electrode; and an accommodation portion, wherein the electrode assembly is disposed in the accommodation portion, and wherein a semipermeable electrolyte solution storage portion is adjacent to the electrode assembly in an upper end or a lower end of the accommodation portion.
    Type: Grant
    Filed: April 19, 2016
    Date of Patent: March 19, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jaeeun Kim, Jirae Kim, Hyorang Kang, Wonseok Chang
  • Patent number: 10224555
    Abstract: The fuel cell includes a fuel cell stack in which a plurality of planar power generation cells are stacked in a thickness direction thereof. The fuel cell also includes a heat exchanger provided between the two adjacent power generation cells in the stacking direction and in contact with the power generation cells, and including an internal first flow path that passes the oxidant gas or fuel gas supplied from outside. The fuel cell also includes a second flow path connected to an outlet side of the first flow path of the heat exchanger and to the cathode side or the anode side of each of the power generation cells, and supplying the oxidant gas or fuel gas that has passed through the first flow path to the cathode side or anode side of each of the power generation cells on both sides in the stacking direction of the heat exchanger.
    Type: Grant
    Filed: October 31, 2012
    Date of Patent: March 5, 2019
    Assignee: NGK SPARK PLUG CO., LTD.
    Inventors: Hideki Ishikawa, Hideki Uematsu, Hiroya Ishikawa, Takeshi Ohno, Takafumi Shichida, Shunsuke Tsuga
  • Patent number: 10161692
    Abstract: The thermal profile of one or more fuel cells (10) cooled by coolant flowing in coolant flow passageways (30, 31, 33, 34, 37-41, 45-50) is tailored by providing selected material (65, 68) adjacent a portion (33b) of the coolant passageway; the selected material has a different thermal transfer characteristic than material surrounding other portions of the coolant passageway. The material may be more insulative or more conductive. The material may be wrapping (65), such as shrink wrap, about a coolant tube, or it may be altered material (68) in a molding material.
    Type: Grant
    Filed: July 25, 2007
    Date of Patent: December 25, 2018
    Assignee: DOOSAN FUEL CELL AMERICA, INC.
    Inventor: David D. Jayne