Means For Joining Components Together Patents (Class 429/507)
  • Patent number: 10529998
    Abstract: A fuel cell includes a fuel cell stacked body in which a plurality of fuel cells are stacked in a first direction, a pair of end plates which sandwiches the fuel cell stacked body in the first direction, and a load measurement unit that is disposed between at least one of the pair of end plates and the fuel cell stacked body, and detects an electrode load, which acts on a power generation surface of the fuel cells, in the first direction. The load measurement unit includes a first conductive material, second conducive materials between which the first conductive material is interposed in the first direction, and which include a contact portion that is in contact with the first conductive material, and a detection unit that detects a voltage drop between the second conductive materials, which face each other in the first direction, with the first conductive material interposed therebetween.
    Type: Grant
    Filed: September 20, 2016
    Date of Patent: January 7, 2020
    Assignee: Honda Motor Co., Ltd.
    Inventors: Katsunori Saiki, Masao Utsunomiya
  • Patent number: 10270105
    Abstract: In order to improve a power density of a fuel cell and prevent a generation of a poor insulation, an insulator is provided, which is disposed between a current collector disposed in contact with one end of a stacked body having a plurality of stacked unit cells in stacking directions, and an end member disposed outside from the current collector in the stacking directions, and includes a plurality of insulator members, each having a sheet-like planar portion. The plurality of insulator members which are stacked onto each other by the planar portions thereof are disposed oppose to the current collector.
    Type: Grant
    Filed: November 4, 2015
    Date of Patent: April 23, 2019
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Yutaka Hotta, Tateki Takayama, Makoto Takeyama
  • Patent number: 10103386
    Abstract: Electrodes having three dimensional current collectors provide stability to the electrode structure, improved contact between active material and the current collector, and improved charge transfer. An electrode includes a three dimensional current collector including a substantially planar base and spring-like structures extending from the substantially planar base in spaced relation along the substantially planar base. Each spring-like structure has an attachment end attached to the substantially planar base and a free distal end. Active material is layered on the three dimensional current collector, the active material filled between the spring-like structures. The active material comprises alloying particles having a high specific capacity, wherein the spring-like structures deflect as the alloying particles expand in volume due to lithiation and return to an initial position as the alloying particles contract due to delithiation.
    Type: Grant
    Filed: December 15, 2015
    Date of Patent: October 16, 2018
    Assignee: Nissan North America, Inc.
    Inventor: Xiaoguang Hao
  • Patent number: 9774056
    Abstract: A fuel cell stack assembly comprises a plurality of fuel cells in a stack, the stack defining two opposing parallel end faces. An end plate is disposed at each opposing end face of the stack. Each end plate defines a compression surface adjacent to and in compressive relationship with a respective one of the two opposing parallel end faces. A coupling mechanism is attached to the end plates to thereby maintain the fuel cells in the stack under compression. At least one, preferably both, of the end plates comprise a preformed element defining the compression surface, the preformed element being configured with a predetermined curvature such that the compression surface is a convex surface when the preformed element is not under load whereas, under the application of the load to maintain the fuel cells under compression, flexure of the preformed element between elements of the coupling mechanism causes the compression surface to become a substantially planar surface.
    Type: Grant
    Filed: April 30, 2013
    Date of Patent: September 26, 2017
    Assignee: Intelligent Energy Limited
    Inventor: Peter David Hood
  • Patent number: 9005838
    Abstract: A fuel cell stack is provided in which a plurality of single cells each including a membrane electrode assembly are stacked in a stacking direction. The fuel cell stack includes a plurality of electrical insulation members each connected to an outer peripheral portion of a corresponding one of the membrane electrode assemblies. The fuel cell stack further includes a first displacement absorbing member disposed between each insulation member and an adjacent insulation member.
    Type: Grant
    Filed: November 13, 2009
    Date of Patent: April 14, 2015
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Shigetaka Uehara, Yasuhiro Numao
  • Patent number: 8993195
    Abstract: A fuel cell includes a unit cell, a cell fixing member and a welding portion. The unit cell includes a first electrode layer, an electrolyte layer surrounding the first electrode layer, a second electrode layer surrounding the electrolyte layer while exposing an end portion of the electrolyte layer, and a coating layer formed by coating a mixture of ceramic and metal on the exposed end portion of the electrolyte layer. The cell fixing member includes a flow tube inserted into the unit cell, a fixing tube provided to an outside of the flow tube, and a connecting portion connecting the fixing tube and the flow tube to each other and to restrict an insertion depth of the electrolyte layer and the first electrode layer. The welding portion fixes and seals the coating layer and the inner circumferential surface of the fixing tube to each other.
    Type: Grant
    Filed: October 20, 2010
    Date of Patent: March 31, 2015
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Jun-Won Suh, Ho-Jin Kweon
  • Patent number: 8974985
    Abstract: A stack hinge is formed by stacking a plurality of plate hinge parts each having the same shape. Each of the plate hinge parts has a tab having a pin through hole for engagement with a joint pin and a joint portion joined to a panel of a unit box. The plate hinge parts are stacked by aligning the pin through holes and fixed together to assemble the plate hinge parts into a single hinge member.
    Type: Grant
    Filed: June 6, 2008
    Date of Patent: March 10, 2015
    Assignee: Honda Motor Co., Ltd.
    Inventors: Ryoichi Yoshitomi, Ayumu Ishizuka, Makoto Tsuji, Yositaka Hattori, Shigeru Maniwa, Daisuke Nakagawara
  • Patent number: 8962218
    Abstract: A multilayer contact approach for use in a planar solid oxide fuel cell stack includes at least 3 layers of an electrically conductive perovskite which has a coefficient of thermal expansion closely matching the fuel cell material. The perovskite material may comprise La1-xEx Co0.6Ni0.4O3 where E is a alkaline earth metal and x is greater than or equal to zero. The middle layer is a stress relief layer which may fracture during thermal cycling to relieve stress, but remains conductive and prevents mechanical damage of more critical interfaces.
    Type: Grant
    Filed: January 14, 2011
    Date of Patent: February 24, 2015
    Assignee: Versa Power Systems, Ltd.
    Inventors: Xinge Zhang, Anthony Wood, Michel Riou
  • Patent number: 8940461
    Abstract: A method of coating carbon based electrodes and thick electrodes without mud-cracking is described. The electrode ink is deposited on a decal substrate, and transferred to a hot press before the electrode ink is completely dried. The partially dried electrode ink is hot pressed to the membrane to form a membrane electrode assembly. A membrane electrode assembly including a polymer membrane; and a pair of crack-free electrode layers on opposite sides of the polymer membrane, each of the pair of electrode layers having a thickness of at least about 50 ?m is also described.
    Type: Grant
    Filed: March 25, 2010
    Date of Patent: January 27, 2015
    Assignee: GM Global Technology Operations LLC
    Inventors: Junliang Zhang, Matthew Dioguardi, Frederick T. Wagner
  • Patent number: 8940457
    Abstract: Fluid distribution plate (1) for a fuel cell assembly, comprising a first plate (11) made of an electrically conductive material impermeable to all the fluids used in a fuel cell assembly, said distribution plate having a useful section (S) which is the surface over which the gases used by the electrochemical reaction are distributed, said useful section (S) being bordered all around by a peripheral section (P), said first plate having a given thickness e1 in the peripheral section and a smaller thickness e2 in the useful section so as to form a recess from the side facing the outer face and so as to have a flat inner surface, a flexible graphite foil (11C) being applied against said first plate (11) over the entire surface of the recess, the visible face of the flexible graphite foil having a distribution channel (111) for one of the fluids, said network being formed completely in the graphite foil.
    Type: Grant
    Filed: January 8, 2008
    Date of Patent: January 27, 2015
    Assignees: Compagnie Generale des Etablissements Michelin, Michelin Recherche et Technique S.A.
    Inventors: Antonio Delfino, David Olsommer, Felix Buchi
  • Patent number: 8932738
    Abstract: A fuel cell assembly structure mainly comprises a housing in which there is an accommodating space; a plurality of unit cell stacks that are stacked in the same direction in the accommodating space of the housing and made by stacking in sequence a cathode layer, a power generation electrode, an anode layer and a connection disk; a connection disk connecting is series each unit cell stack, a sealing disk and a cover in sequence to cover the opening of the accommodating space of the housing. On the outer side of the cover there is a connection base, at least one surface of which has a plurality of conduits and the other end connects to a plurality of cell stack bypass manifolds that further connect to a plurality of side bypass manifolds.
    Type: Grant
    Filed: October 16, 2008
    Date of Patent: January 13, 2015
    Assignee: Institute of Nuclear Energy Research
    Inventors: Dung-Di Yu, Yung-Neng Cheng, Ruey-Yi Lee, Chien-Hsiung Lee
  • Patent number: 8927174
    Abstract: A sealing structure of a fuel cell has a first gasket made of an elastomer and provided integrally on a separator, and a second gasket made of an elastomer and provided integrally on other separator. A membrane-electrode assembly is sandwiched or pinched by the first and second gaskets. The first gasket has a main lip in which a top portion brought into close contact with the membrane-electrode assembly is formed flat. The second gasket has a flat seal portion and a sub lip protruding from this flat seal portion at a position opposing the main lip. The flat seal portion and the sub lip are brought into close contact with the membrane-electrode assembly. The width of the top portion of the main lip is narrower than the width of the flat seal portion, and larger than the width of the sub lip.
    Type: Grant
    Filed: April 27, 2010
    Date of Patent: January 6, 2015
    Assignee: NOK Corporation
    Inventors: Shinichiro Taguchi, Shigeru Watanabe
  • Patent number: 8921009
    Abstract: An improved approach toward manufacture of a sealed fuel cell stack configuration including electrostatic deposition of materials onto substrate surfaces of the fuel cell stack.
    Type: Grant
    Filed: July 30, 2012
    Date of Patent: December 30, 2014
    Assignee: Zephyros, Inc.
    Inventors: Michael Czaplicki, Karsten Scholz
  • Patent number: 8916312
    Abstract: Exemplary embodiments include a product and a method of a bipolar plate assembly for a fuel cell stack. The bipolar plate assembly includes a first plate with a first border, and a second plate with a second border. A thermoplastic sealant is melted between the first and second borders.
    Type: Grant
    Filed: April 20, 2010
    Date of Patent: December 23, 2014
    Assignee: GM Global Technology Operations LLC
    Inventor: Xinran Xiao
  • Patent number: 8911918
    Abstract: A method for creating a formed-in-place seal on a fuel cell plate is disclosed. The method includes first dispensing a flowable seal material along a first sealing area of a fuel cell plate requiring the seal material. Next, a preformed template is located adjacent to at least a portion of the fuel cell plate, the template including predetermined apertures corresponding with a second sealing area of the plate, such that the apertures are coextensive with at least a portion of the first sealing area. Flowable seal material is applied into the apertures, and is then cured to a non-flowable state.
    Type: Grant
    Filed: February 8, 2010
    Date of Patent: December 16, 2014
    Assignee: GM Global Technology Operations LLC
    Inventor: Mark W. Keyser
  • Patent number: 8900774
    Abstract: A fuel cell layer includes a plurality of membrane electrode assemblies disposed in a planar array arrangement and an interconnector for electrically coupling an anode catalyst layer of one of adjacent membrane electrode assemblies to a cathode catalyst layer of the other of the adjacent membrane electrode assemblies. Each membrane electrode assembly includes an electrolyte membrane, the anode catalyst layer provided on one face of the electrolyte member and the cathode catalyst layer provided on the other face of the electrolyte membrane in such a manner that at least part of which is disposed counter to the anode catalyst layer. The interconnector is formed of at least one of a material constituting the anode catalyst layer and a material constituting the cathode catalyst layer.
    Type: Grant
    Filed: March 25, 2010
    Date of Patent: December 2, 2014
    Assignees: Sanyo Electric Co., Ltd., Societe BIC
    Inventors: Shinichiro Imura, Jeremy Schrooten, Gerard F. McLean, Jean-Louis Iaconis, Martin Lagroix
  • Patent number: 8900760
    Abstract: The solid oxide fuel cell has a stack structure formed by stacking sheet bodies each of which comprises three layers of the electrolyte layer, a fuel electrode layer, an air electrode layer, and separators in alternating layers. In an air channel defined between the air electrode and the separator facing the air electrode layer, a SUS mesh made of stainless steel for electrically connecting both of them is confined. On the surface of the SUS mesh, previously by itself before the assembly of the stack structure, an Ag-plating treatment is performed and further a vacuum heat-treatment (heat-treatment under a negative pressure) is performed.
    Type: Grant
    Filed: January 26, 2010
    Date of Patent: December 2, 2014
    Assignee: NGK Insulators, Ltd.
    Inventors: Makoto Ohmori, Toshiyuki Nakamura, Masayuki Shinkai, Tsutomu Nanataki
  • Patent number: 8895208
    Abstract: The manufacture and calibration of an interconnect for a fuel cell ensures contact in all contact points between the interconnect and the adjacent electrodes.
    Type: Grant
    Filed: December 8, 2010
    Date of Patent: November 25, 2014
    Assignee: Topsoe Fuel Cell A/S
    Inventors: Casper Buchholtz Frederiksen, Cliver Klitholm
  • Patent number: 8889303
    Abstract: A cassette less SOFC assembly and a method for creating such an assembly. The SOFC stack is characterized by an electrically isolated stack current path which allows welded interconnection between frame portions of the stack. In one embodiment electrically isolating a current path comprises the step of sealing a interconnect plate to a interconnect plate frame with an insulating seal. This enables the current path portion to be isolated from the structural frame an enables the cell frame to be welded together.
    Type: Grant
    Filed: December 17, 2009
    Date of Patent: November 18, 2014
    Assignee: Battelle Memorial Institute
    Inventor: Kerry D. Meinhardt
  • Patent number: 8865364
    Abstract: A solid oxide fuel cell includes two or more power generating elements each having a cathode, an anode, and an electrolyte layer placed between the cathode and the anode; an interconnector electrically connecting the power generating elements and containing a chromite-based material; and a sealing portion provided between the electrolyte layer and the interconnector and not containing either Ni or ZrO2.
    Type: Grant
    Filed: October 28, 2011
    Date of Patent: October 21, 2014
    Assignee: NGK Insulators, Ltd.
    Inventors: Toshihiro Yoshida, Takashi Ryu, Taku Okamoto, Masaru Nishitoba, Makoto Ohmori
  • Patent number: 8859162
    Abstract: Disclosed herein is a fuel cell module. The fuel cell module according to preferred embodiments of the present invention includes: a first support part including a first body part surrounding one side of an outer peripheral surface of a fuel cell and a first connection part formed on one side of the first body part in a longitudinal direction; a second support part including a second body part surrounding the other side of the outer peripheral surface of the fuel cell and the second connection part formed on one side of the second body part in a longitudinal direction; and a fixing part passing through the first connection part and the second connection part to connect and fix the first connection part and the second connection part to each other.
    Type: Grant
    Filed: November 27, 2012
    Date of Patent: October 14, 2014
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Jai Hyoung Gil, Kyong Bok Min, Jong Ho Chung, Jong Sik Yoon, Eon Soo Lee
  • Publication number: 20140302417
    Abstract: An electrically conductive adhesive is disclosed for bonding anode and cathode flow field plates together for use in fuel cells. The adhesive formulation comprises epoxy methacrylate resin and non-fibrous carbon particles but little to no carbon fibres. The adhesive provides suitable strength, bond gap, conductivity and other properties, particularly for flow field plates made of flexible graphite, carbon, or metal.
    Type: Application
    Filed: April 2, 2014
    Publication date: October 9, 2014
    Applicants: Ford Motor Company, Daimler AG
    Inventors: Daniel Ramrus, Marek Gnatowski, Mathew Leung, Grace Sun
  • Patent number: 8846267
    Abstract: A flexible MEA comprises an integral assembly of electrode, catalyst and ionomeric membrane material.
    Type: Grant
    Filed: June 27, 2006
    Date of Patent: September 30, 2014
    Assignee: ITM Power (Research) Ltd.
    Inventors: Donald James Highgate, Jonathan Anthony Lloyd, Simon Bourne, Rachel Louise Smith
  • Patent number: 8835024
    Abstract: A method for operating a passive, air-breathing fuel cell system is described. In one embodiment, the system comprises one or more fuel cells, and a closed fuel plenum connected to a fuel supply. In some embodiments of the method, the fuel cell cathodes are exposed to ambient air, and the fuel is supplied to the anodes via the fuel plenum at a pressure greater than that of the ambient air.
    Type: Grant
    Filed: October 8, 2013
    Date of Patent: September 16, 2014
    Assignee: Societe BIC
    Inventors: Joy Roberts, Joerg Zimmermann, Jeremy Schrooten
  • Patent number: 8828617
    Abstract: In solid polymer fuel cells employing framed membrane electrode assemblies, a conventional anode compliant seal is employed in combination with a cathode non-compliant seal to provide for a thinner fuel cell design, particularly in the context of a fuel cell stack. This approach is particularly suitable for fuel cells operating at low pressure.
    Type: Grant
    Filed: December 16, 2009
    Date of Patent: September 9, 2014
    Assignee: Ballard Power Systems Inc.
    Inventors: Keith M. Martin, Samira Barakat, Emerson R. Gallagher
  • Patent number: 8828620
    Abstract: Fabricating roll-good fuel cell material involves laminating first and second bonding material webs having spaced apart windows to first and second surfaces of a fuel cell membrane web. First and second active regions of the membrane web are positioned within the respective bonding material windows. Third and fourth gasket material webs having spaced apart windows are respectively laminated to the bonding material on the first and second membrane web surfaces. The bonding material windows align with the respective gasket material windows so that at least some of the bonding material extends within the respective gasket material windows. Fluid transport layer (FTL) material portions cut from fifth and sixth FTL material webs are laminated to the respective first and second active regions. The FTL material portions are positioned within respective gasket material windows and contact the bonding material extending within the respective gasket material windows.
    Type: Grant
    Filed: August 30, 2012
    Date of Patent: September 9, 2014
    Assignee: 3M Innovative Properties Company
    Inventors: David Robert Mekala, Donald George Peterson, Dennis Earl Ferguson, Duane Douglas Fansler
  • Patent number: 8802328
    Abstract: A shaped part that is particularly suited as an interconnector or an end plate for a fuel cell stack, is produced by pressing and sintering a pulverulent starting material. The shaped part has a basic body with a multiplicity of knob-like and/or ridge-like elevations with a height h. Each elevation has two inclined side flanks which lead, proceeding from an end contour of the elevation, via rounded corner portions, directly or via intermediate rectilinear portions, into curved portions with a radius R or R?, which in turn merge into the surface contour, of the basic body. A ratio of the radius R:h or R?:h ranges from 0.25, or preferably from 0.5 to 1.
    Type: Grant
    Filed: March 11, 2014
    Date of Patent: August 12, 2014
    Assignee: Plansee SE
    Inventors: Marco Brandner, Stefan Gerzoskovitz, Wolfgang Kraussler, Alexander Leuprecht, Andreas Venskutonis
  • Patent number: 8795921
    Abstract: An alignment system and method for assembling a fuel cell stack. Components of the fuel cell stack have internal alignment features and are aligned to a predetermined orientation during assembly. The system and method allow fuel cell stacks to be assembled within high tolerance levels while improving access to each component during assembly. Additionally, the system and method can provide additional rigidity to a fuel cell stack.
    Type: Grant
    Filed: June 29, 2010
    Date of Patent: August 5, 2014
    Assignee: GM Global Technology Operations LLC
    Inventors: Jeffrey A. Rock, Benno Andreas-Schott, Thomas P. Migliore, Ivan D. Chapman, Matthew J. Beutel, Mark W. Keyser
  • Patent number: 8790850
    Abstract: A current collection apparatus and its method of processing for a solid oxide fuel cell, which mainly includes using screen printing process to print conductive adhesive onto the surface of the electrode of solid oxide fuel cell (SOFC), forming a current collection layer with drying process, using an appropriate amount of conductive adhesive to paste a conductive wire onto the current collection layer, forming an adhesion layer through drying, fixing the conductive wire on the electrode surface with an appropriate amount of ceramic adhesive, and forming a fixing layer after baking. A good connection is hence made between metal conductive wire and electrode through current collection layer, not only the interface impedance between electrode and current collection layer can be reduced effectively, but also the output power density of the SOFC unit cell can be enhanced, and stable as well as long term power output can be provided.
    Type: Grant
    Filed: March 1, 2012
    Date of Patent: July 29, 2014
    Assignee: Institute of Nuclear Energy Research
    Inventors: Jen-Chen Chang, Maw-Chwain Lee, Rung-Je Yang, Tai-Nan Lin, Yang-Chuang Chang, Wei-Xin Kao, Lin-Song Lee
  • Patent number: 8790844
    Abstract: A fuel cell stack with a plurality of membrane electrode assemblies (MEAs) and a plurality of bipolar plates, wherein at least one surface of a first bipolar plate runs in undulating fashion, meandering fashion or zig-zag-shaped fashion and extreme points of the surface of the bipolar plate make contact with a first surface of a MEA at contact points. At least some of the contact points are associated with mating contact points on a second surface of the MEA, which surface is opposite the first surface of the MEA, with a surface of a second bipolar plate making contact with said mating contact points, and that the contact points and the associated mating contact points are positioned one above the other in the stacking direction. A method for producing a fuel cell stack is provided. A bipolar plate for a fuel cell stack is also provided.
    Type: Grant
    Filed: September 29, 2009
    Date of Patent: July 29, 2014
    Assignee: Staxera GmbH
    Inventor: Andreas Reinert
  • Patent number: 8771901
    Abstract: The present disclosure is directed to an integrated SOFC stack including, a first cell having a cathode layer, an electrolyte layer overlying the cathode layer, and an anode layer overlying the electrolyte layer. The SOFC stack also includes a second cell having a cathode layer, an electrolyte layer overlying the cathode layer, and an anode overlying the electrolyte layer. The SOFC stack further includes a ceramic interconnect layer between the first cell and the second cell, the ceramic interconnect layer having a first high temperature bonding region along the interfacial region between the first cell and the ceramic interconnect layer. The ceramic interconnect layer also includes a second high temperature bonding region along the interfacial region between the second cell and the ceramic interconnect layer.
    Type: Grant
    Filed: April 4, 2007
    Date of Patent: July 8, 2014
    Assignee: Saint-Gobain Ceramics & Plastics, Inc.
    Inventors: William J. Donahue, Oh-Hun Kwon, F. Michael Mahoney, John D. Pietras
  • Patent number: 8771902
    Abstract: A fuel cell is manufactured using a polymer electrolyte membrane (1). A catalyst layer (12) is formed at fixed intervals on the surface of the strip-form polymer electrolyte membrane (1) in the lengthwise direction thereof, and conveyance holes (10) are formed in series at fixed intervals on the two side portions thereof. By rotating a conveyance roller (32) comprising on its outer periphery projections which engage with the holes (10), the polymer electrolyte membrane (1) is fed from a reel (9). A GDL (6) and a separator (7) are adhered to the fed polymer electrolyte membrane (1) at a predetermined processing timing based on the rotation speed of the conveyance roller (32), and thus the fuel cell is manufactured efficiently while the GDL (6) and separator (7) are laminated onto the catalyst layer (12) accurately.
    Type: Grant
    Filed: May 26, 2011
    Date of Patent: July 8, 2014
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Takeharu Kuramochi, Masanori Iwamoto, Masahiko Katsu, Kaoru Eguchi, Masahiro Omata, Hideto Kanafusa, Yoshiki Muto
  • Publication number: 20140186737
    Abstract: The present invention involves an electrically-conductive fuel cell electrode connector, the connector including an opening and a slot, the slot connecting an interrupted external edge of the connector to the opening to delimit a first flap and a second flap of the connector. A method of using the connector comprising a step of deforming the connector to be able to insert a module of unit cells into the connector opening.
    Type: Application
    Filed: December 23, 2013
    Publication date: July 3, 2014
    Applicant: Paxitech
    Inventors: Renaut MOSDALE, Séverine ANDRADA
  • Patent number: 8765307
    Abstract: A stacked nonaqueous electrolyte battery, a method of manufacturing the battery, and a stacking apparatus for the battery are provided. The stacked nonaqueous electrolyte battery includes a plurality of electrode bodies alternately stacked, each of the electrode bodies including an anode and a cathode laminated through a separator. The separator has a raised edge portion leading along an edge portion of one of the anode and the cathode, and the raised edge portions of the plurality of the separators overlap one another.
    Type: Grant
    Filed: January 18, 2008
    Date of Patent: July 1, 2014
    Assignee: Sony Corporation
    Inventor: Takashi Komiya
  • Patent number: 8765326
    Abstract: The present invention features a fuel cell stack that preferably includes an electricity generating assembly having a plurality of unit cells that are suitably disposed one after another; a pair of end plates pressedly disposed respectively at upper and lower ends of the electricity generating assembly; and a joining device suitably engaging the end plates by a rope, where pressure is applied to the electricity generating assembly by means of tension of the rope, and the length and tension of the rope is suitably controlled.
    Type: Grant
    Filed: March 25, 2013
    Date of Patent: July 1, 2014
    Assignees: Hyundai Motor Company, Kia Motors Corporation, Korea Advanced Institute of Science and Technology
    Inventors: Haeng Jin Ko, Young Bum Kum, Young Woo Noh, Sae Hoon Kim, Sang Hyun Cho, Jung Do Suh, Kwi Seong Jeong, Junghan Yu, Byung Ki Ahn, Duck Whan Kim, Sung Keun Lee, Dai Gil Lee, Ha Na Yu
  • Patent number: 8753785
    Abstract: A shaped part that is particularly suited as an interconnector or an end plate for a fuel cell stack, is produced by pressing and sintering a pulverulent starting material. The shaped part has a basic body with a multiplicity of knob-like and/or ridge-like elevations with a height h. Each elevation has two inclined side flanks which lead, proceeding from an end contour of the elevation, via rounded corner portions, with a radius r or r? directly or via intermediate rectilinear portions, into curved portions, with a radius R or R?, which in turn merge into the surface contour, of the basic body. The rectilinear portions, or, in the case of a direct transition of the rounded corner portions into the curved portions, the tangents at the point of the transition, have an angle of inclination relative to the surface contour, between 95° and 135°.
    Type: Grant
    Filed: December 15, 2010
    Date of Patent: June 17, 2014
    Assignee: Plansee SE
    Inventors: Marco Brandner, Stefan Gerzoskovitz, Wolfgang Kraussler, Alexander Leuprecht, Andreas Venskutonis
  • Patent number: 8735012
    Abstract: A fuel cell system which includes a fuel distribution structure that uniformly distributes vaporizing fuel to a fuel cell is provided. As the fuel travels in a flow field channel in the fuel distribution structure, it is substantially converted to a vapor by the heat of the fuel cell operation in such a manner that the resulting vapor pressure works to substantially uniformly distribute fuel evenly outwardly across substantially the entire active area of the anode aspect of one or more membrane electrode assemblies in the system, and whereby localized, uneven “hot spots” of fuel at the anode aspects are substantially prevented. A pair of enthalpy exchanger and heat spreader assemblies include a cathode current collector element that also has a heat spreader plate that collects and redirects heat in the fuel cell system, the assembly acting to manage the heat, temperature and condensation in the fuel cell system.
    Type: Grant
    Filed: November 20, 2008
    Date of Patent: May 27, 2014
    Assignee: MTI MicroFuel Cells Inc.
    Inventors: David Leach, Michael L. Chen, Charles M. Carlstrom, Jr., Constantinos Minas, Keith G. Brown, Robert Miller, James K. Prueitt, John E. Meschter, Amit Chaugule, Russel H. Marvin, Mark C. Mendrick
  • Patent number: 8728683
    Abstract: A cell unit of a fuel cell includes a first separator, a first membrane electrode assembly, a second separator, a second membrane electrode assembly, and a third separator. Resin connecting sections are provided in the outer circumferential ends of the first separator, the second separator, and the third separator. A coupling pin is molded integrally with the resin connecting section of the first separator. A first hole and a second hole are formed on both sides of the coupling pin for selectively inserting a rebuilt pin into either of the first and second holes. A hole for inserting the coupling pin is formed at the center, and the first hole and the second hole are formed on both sides of the hole, in each of the resin connecting sections of the second and third separators.
    Type: Grant
    Filed: May 20, 2010
    Date of Patent: May 20, 2014
    Assignee: Honda Motor Co., Ltd.
    Inventors: Masahiro Fukuta, Kentaro Ishida, Tatsuru Shishido
  • Publication number: 20140134513
    Abstract: An electrical connection material for solid oxide fuel cells, which is capable of preferred electrical connections. The electrical connection material includes a burn-out material-containing ceramic layer and a burn-out material-free ceramic layer stacked on the burn-out material-containing ceramic layer. The burn-out material-containing ceramic layer contains a conductive ceramic and a burn-out material.
    Type: Application
    Filed: January 21, 2014
    Publication date: May 15, 2014
    Applicant: MURATA MANUFACTURING CO., LTD.
    Inventors: Kenji Nakamura, Tomoaki Hirai
  • Patent number: 8722275
    Abstract: An apparatus for fuel cell stacking includes an assembly jig having a base; an alignment assembly configured to be engaged with the base; and a compression assembly configured to be engaged with the alignment assembly.
    Type: Grant
    Filed: July 8, 2011
    Date of Patent: May 13, 2014
    Assignee: Oorja Protonics Inc.
    Inventors: Derek Kwok, Paul Knauer, Sergio Sanchez-Chopit
  • Patent number: 8709629
    Abstract: Disclosed herein are various embodiments of redox flow battery systems having modular reactant storage capabilities. Accordingly to various embodiments, a redox flow battery system may include an anolyte storage module configured to interface with other anolyte storage modules, a catholyte storage module configured to interface with other catholyte storage modules, and a reactor cell having reactant compartments in fluid communication with the anolyte and catholyte storage modules. By utilizing modular storage modules to store anolyte and catholyte reactants, the redox flow battery system may be scalable without significantly altering existing system components.
    Type: Grant
    Filed: December 22, 2010
    Date of Patent: April 29, 2014
    Assignee: JD Holding Inc.
    Inventors: Colin Earl MacKenzie Vincent, Gary Lepp
  • Patent number: 8703361
    Abstract: A membrane electrode assembly manufacturing method that includes: (a) forming a first electrode on a first release paper and a second electrode on a second release paper corresponding to the first electrode; (b) forming first incision parts in the first release paper at a predetermined interval along the first electrode's edge and second incision parts in the second release paper at a predetermined interval along the second electrode's edge; (c) adhering a first release paper surface on which the first electrode is formed on one electrolyte membrane surface and adhering one second release paper surface in which the second electrode is formed on the other electrolyte membrane surface; and (d) removing one part of the first release paper corresponding to the first electrode along the first incision part and removing one part of the second release paper corresponding to the second electrode along the second incision part.
    Type: Grant
    Filed: July 30, 2010
    Date of Patent: April 22, 2014
    Assignee: Hyundai Motor Company
    Inventor: Ki Sub Lee
  • Patent number: 8703356
    Abstract: In a separator member to be joined to an adjacent member adjacent thereto with an adhesive in a cell stacking direction, guide paths are provided to guide, in a specific direction, the adhesive applied to a joint surface of the separator member to be joined to the adjacent member. Thus, excessive adhesive is guided to the guide path, and associated disadvantages during joining can be eliminated.
    Type: Grant
    Filed: April 27, 2005
    Date of Patent: April 22, 2014
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Tomokazu Hayashi
  • Patent number: 8697310
    Abstract: A fuel cell includes a separator assembly in which a plurality of plates are laminated on each other and adjacent ones of the plates are secured to each other such that external force does not cause displacement of the plates relative to each other, a terminal used for detecting voltage, and a terminal connecting portion provided in the separator assembly for connecting the terminal to the separator assembly.
    Type: Grant
    Filed: June 27, 2008
    Date of Patent: April 15, 2014
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Tsutomu Shirakawa
  • Patent number: 8691467
    Abstract: A method and resulting device for metallic structures including interconnects and sealed frames for solid oxide fuel cells, particularly those with multi-cell electrolyte sheets, includes providing a high-temperature aluminum-containing surface-alumina-forming steel, forming an interconnect structure from the steel, removing any alumina layer from a surface portion of the interconnect where an electrical contact is to be formed, providing a structure having a surface portion with which electrical contact is to be made by the surface portion of the interconnect, and brazing the surface portion of the interconnect to the surface portion of the structure, and sealing fuel cell frames by brazing.
    Type: Grant
    Filed: December 15, 2005
    Date of Patent: April 8, 2014
    Assignee: Corning Incorporated
    Inventors: Dilip Kumar Chatterjee, Jeffrey Earl Cortright, Pamela Arlene Maurey, Samir Biswas
  • Patent number: 8685585
    Abstract: In a planar-array cell structure, an area required by interconnectors is reduced and a fuel cell is made further compact. A connection part which connects adjacent cells in series is provided within a sealing member provided in a peripheral edge part of an electrolyte membrane where multiple cells are formed in a planar arrangement. For each cell, an anode terminal of a current collector is disposed counter to a cathode terminal of the current collector via the electrolyte membrane. The connection part penetrates the electrolyte membrane and connects the anode terminal of one of the adjacent cells to the cathode terminal of the other of the adjacent cells.
    Type: Grant
    Filed: February 27, 2008
    Date of Patent: April 1, 2014
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Shinichiro Imura, Takashi Yasuo
  • Patent number: 8673519
    Abstract: A double-sided adhesive metal-based tape for use as contacting aid for SOFC fuel cells is provided. The double-sided metal-based adhesive tape is suitable for simplifying the construction of cell bundles. The double-sided metal-based adhesive tape is used for electrical contacting of the cell connector with the anode and for electrical contacting of the interconnector of the fuel cells with the cell connector. A method for producing the double-sided adhesive metal-base tape is also provided.
    Type: Grant
    Filed: September 26, 2008
    Date of Patent: March 18, 2014
    Assignee: Siemens Aktiengesellschaft
    Inventors: Ines Becker, Cora Schillig
  • Publication number: 20140065511
    Abstract: A strip for linking anodes and cathodes of an electrochemical converter is made from a metallized porous substrate including a hydrophobic coating, at least in areas in contact with the anodes or cathodes.
    Type: Application
    Filed: April 7, 2011
    Publication date: March 6, 2014
    Inventors: Pierre Forte, Catherine Lepiller
  • Patent number: 8652664
    Abstract: A fuel cell sealing plate taking-out method that may include taking out a sealing plate from a stack of sealing plates one by one while an air layer exists between adjacent sealing plates of the stack of fuel cells. A protrusion may be formed beforehand at one or more surfaces of each sealing plate. Due to the air layer existing between adjacent sealing plates, it may be possible to take out the sealing plate one by one from the stack of sealing plates.
    Type: Grant
    Filed: April 27, 2012
    Date of Patent: February 18, 2014
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Shiro Akiyama, Shigemitsu Nomoto
  • Patent number: RE44960
    Abstract: A battery unit with improved safety measures, a lithium polymer battery using the battery unit, and a method for manufacturing the lithium polymer battery are provided.
    Type: Grant
    Filed: February 23, 2012
    Date of Patent: June 24, 2014
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Chang-Il Gu