Method Of Making A Fuel Cell, Fuel Cell Stack, Or Subcombination Thereof Patents (Class 429/535)
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Patent number: 11600832Abstract: A support frame is placed on a second surface of an electrolyte membrane such that a second catalyst layer and a second gas diffusion layer are placed inside an opening of the support frame. When a fuel cell is viewed from a direction perpendicular to the electrolyte membrane, a first region and a second region are present, the first region being a region where the second gas diffusion layer is present, the second region being a region between an outer peripheral edge part of the second gas diffusion layer and an inner peripheral edge part of the opening of the support frame. A bonding power between a first catalyst layer and a first gas diffusion layer in the first region is smaller than a bonding power between the first catalyst layer and the first gas diffusion layer in the second region.Type: GrantFiled: November 24, 2021Date of Patent: March 7, 2023Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Atsushi Yamamoto
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Patent number: 11594739Abstract: The present disclosure relates to the field of materials, and in particular, to a method for preparing anti-coking Ni-YSZ anode materials for SOFC. The present disclosure provides a method for preparing a SOFC anode material, including: (1) providing the mixed powder of NiO and YSZ; (2) subjecting the mixed powder provided in step (1) to two-phase mutual solid solution treatment; (3) adjusting the particle size of the product obtained in the solid solution treatment in step (2). The SOFC anode material provided by the present disclosure could prepare the SOFC anode with good carbon deposition resistance. The anode material as a whole has the advantages of low cost, good catalytic performance, desirable electronic conductivity and well chemical compatibility with YSZ, etc. The long-term stability of cell performance is strong, and the cell preparation method is also easy to achieve industrialization.Type: GrantFiled: July 24, 2020Date of Patent: February 28, 2023Assignee: Jingdezhen Ceramic InstituteInventors: Linghong Luo, Liang Cheng, Xu Xu, Leying Wang, Yefan Wu, Yongzhi Yu
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Patent number: 11594736Abstract: A solid oxide fuel cell includes a support of which a main component is a metal, a mixed layer that is provided on the support and includes a metallic material and a ceramics material, an intermediate layer that is provided on the mixed layer and includes an electron conductive ceramics material, and an anode that is provided on the intermediate layer and includes an oxygen ion conductive ceramics material and Ni. A ratio of a metal component in the intermediate layer is smaller than a ratio of the metallic material in the mixed layer.Type: GrantFiled: January 8, 2021Date of Patent: February 28, 2023Assignee: TAIYO YUDEN CO., LTD.Inventor: Xinyu Li
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Patent number: 11588167Abstract: A fuel cell includes: a membrane electrode assembly of a flat plate shape including an electrolyte membrane and an electrode catalyst layer, the membrane electrode assembly having a first side intersecting a flow pathway of a reactive gas on a surface of the fuel cell and a second side differing from the first side; a frame member of a flat plate shape including an opening part for arrangement of the membrane electrode assembly, the opening part having a first frame side corresponding to the first side and a second frame side corresponding to the second side; and an adhesive member for bonding between an outer periphery of the membrane electrode assembly and an inner periphery of the frame member. The thickness of the adhesive member in an area from an inner peripheral edge at the second frame side toward a center of the frame member may be greater than the thickness of the adhesive member in an area from an inner peripheral edge at the first frame side toward the center of the frame member.Type: GrantFiled: January 13, 2021Date of Patent: February 21, 2023Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Makoto Adachi, Makoto Ichikawa, Shogo Ohmori, Hiroshi Harada, Yu Ashitaka, Tsutomu Ochi
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Patent number: 11575135Abstract: An electrode catalyst layer includes a catalyst material, a conductive carrier that supports the catalyst material, a polymer electrolyte containing a sulfonate group, and a fibrous material. The electrode catalyst layer includes a first surface configured to be in contact with the polymer electrolyte membrane, and a second surface facing away from the first surface. A first value is obtained by dividing a peak intensity of SO3 (m/z80) by a peak intensity of carbon (m/z12), and also dividing by a total thickness of the electrode catalyst layer, when the electrode catalyst layer is analyzed using time-of-flight secondary ion mass spectrometry (TOF-SIMS) at each of a plurality of positions in a thickness direction of the electrode catalyst layer from the first surface to the second surface. A rate of change of the first value with respect to a thickness of the electrode catalyst layer is ?0.0020 or less.Type: GrantFiled: September 23, 2020Date of Patent: February 7, 2023Assignee: TOPPAN PRINTING CO., LTD.Inventors: Kazuma Taniwaki, Takahiro Matsuura
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Patent number: 11539054Abstract: Disclose is a method of manufacturing catalyst ink for a fuel cell, and particularly the method includes removing eluted transition metal from a noble-metal/transition-metal alloy catalyst.Type: GrantFiled: November 30, 2020Date of Patent: December 27, 2022Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Dae Yong Son, Dong Hwan Yoon, Yoon Hwan Cho
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Patent number: 11539057Abstract: A tab of a load receiver forming a fuel cell separator member includes a base portion in the form of a metal plate, and a resin member covering the base portion. A hole, into which the resin member is partially inserted, is formed in the base portion. The resin member includes a thick portion, and a thin portion positioned closer to a first separator than the thick portion is. The hole is disposed so as to be overlapped with the thick portion.Type: GrantFiled: January 27, 2021Date of Patent: December 27, 2022Assignee: Honda Motor Co., Ltd.Inventors: Suguru Ohmori, Masayuki Katsuno
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Patent number: 11515544Abstract: Disclosed is a method of manufacturing a solid oxide fuel cell using a calendering process. The method includes preparing a stack including an anode support layer (ASL) and an anode functional layer (AFL), calendering the stack to obtain an anode, stacking an electrolyte layer on the anode to obtain an assembly, calendering the assembly to obtain an electrolyte substrate, sintering the electrolyte substrate, and forming a cathode on the electrolyte layer of the electrolyte substrate.Type: GrantFiled: March 11, 2020Date of Patent: November 29, 2022Assignee: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Hae-Weon Lee, Ho Il Ji, Byung Kook Kim, Jong Ho Lee, Ji-Won Son, Kyung Joong Yoon, Hyoungchul Kim, Sungeun Yang, Sangbaek Park, Junseok Kim, Jisu Shin
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Patent number: 11508950Abstract: A method of manufacturing an electrode sheet by using an electrode sheet manufacturing apparatus for manufacturing the electrode sheet includes a feeding step of feeding out a sheet body from a roll on which the sheet body is wound, the sheet body including an active layer containing a catalyst laminated on a support layer, and a cutting step of forming the electrode sheet by punching the sheet body by pressing a cutting blade from a side of the support layer against the sheet body that was fed out in the feeding step.Type: GrantFiled: July 2, 2019Date of Patent: November 22, 2022Assignees: TORAY ENGINEERING CO., LTD., HONDA MOTOR CO., LTD.Inventors: Keisuke Katayama, Takuto Hayakawa, Yusuke Wada, Masami Kurimoto
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Patent number: 11495812Abstract: Disclosed are a method of manufacturing a membrane-electrode assembly and a membrane-electrode assembly manufactured using the same. The method includes forming a laminated structure, and treating the laminated structure, for example, by drying and heat treating. The laminated structure includes a release film, an anode layer, a porous support layer, and a cathode layer.Type: GrantFiled: August 9, 2019Date of Patent: November 8, 2022Assignees: Hyundai Motor Company, Kia Motors CorporationInventor: Yong Min Kim
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Patent number: 11444306Abstract: A composite membrane for use in flow batteries is contemplated. The membrane comprises a hydrogel, such as poly(vinyl alcohol), applied to a polymeric microporous film substrate. This composite is interposed between two half cells of a flow battery. The resulting membrane and system, as well as corresponding methods for making the membrane and making and operating the system itself, provide unexpectedly good performance at a significant cost advantage over currently known systems.Type: GrantFiled: November 16, 2020Date of Patent: September 13, 2022Assignee: CASE WESTERN RESERVE UNIVERSITYInventors: Jesse S. Wainright, Gary E. Wnek, Enoch A. Nagelli, Robert Savinell
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Patent number: 11394053Abstract: A composition for forming a lithium reduction resistant layer includes a solvent, and a lithium compound, a lanthanum compound, a zirconium compound, and a compound containing a metal M, each of which shows solubility in the solvent, and in which with respect to the stoichiometric composition of a compound represented by the general formula (I), the lithium compound is contained in an amount 1.05 times or more and 2.50 times or less, the lanthanum compound and the zirconium compound are contained in an amount 0.70 times or more and 1.00 times or less, and the compound containing a metal M is contained in an equal amount.Type: GrantFiled: December 19, 2019Date of Patent: July 19, 2022Assignee: SEIKO EPSON CORPORATIONInventors: Hitoshi Yamamoto, Tomofumi Yokoyama
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Patent number: 11362341Abstract: Disclosed is a catalyst slurry for fuel cells and a method for manufacturing the same in which two kinds of ionomers having different equivalent weights (EWs) are used such that the respective ionomers may be formed at positions suitable for maximally exhibiting the functions thereof.Type: GrantFiled: August 31, 2020Date of Patent: June 14, 2022Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATIONInventors: Ji Hoon Yang, Su Won Seol
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Patent number: 11302935Abstract: In a fuel cell stack, a stack body includes a plurality of power generation cells stacked in a stacking direction, and a first dummy cell is provided at one end of the stack body in the stacking direction. The first dummy cell includes a dummy assembly, a dummy resin frame member, and a dummy joint separator. The dummy resin member includes a first resin sheet and a second resin sheet. An inner exposed portion is provided in an inner periphery of the first resin sheet. The inner exposed portion extends inward beyond an inner end of the second resin sheet. A first heat welding portion is provided discontinuously in a stack part where the inner exposed portion and the first electrically conductive porous sheet of the dummy assembly are stacked together. The dummy resin frame member and the dummy assembly are joined together by the first heat welding portion.Type: GrantFiled: April 23, 2019Date of Patent: April 12, 2022Assignee: HONDA MOTOR CO., LTD.Inventors: Yutaka Ebato, Takashi Kato
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Patent number: 11239493Abstract: A method for bonding a solid electrolyte layer and electrodes used a fuel cell includes: laminating the solid electrolyte layer and the electrodes so that the electrodes sandwich the solid electrolyte layer therebetween; applying a first voltage of a first polarity between the electrodes sandwiching the solid electrolyte layer; and applying a second voltage of a second polarity that is the reverse of the first polarity between the electrodes sandwiching the solid electrolyte layer.Type: GrantFiled: November 14, 2017Date of Patent: February 1, 2022Assignee: Marelli CorporationInventors: Teruyoshi Mihara, Tomihito Hashimoto
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Patent number: 10830934Abstract: An exemplary embodiment of the present invention provides an optical element including a first polarizer and a second polarizer disposed to be perpendicular to each other, and a cell disposed between the first polarizer and the second polarizer. The cell includes a first substrate and a second substrate facing each other, an electrode positioned between the first substrate and the second substrate, and a dispersion disposed between the first substrate and the second substrate and including at least one of peeled ?-ZrP particles and peeled ?-TiP particles. The peeled ?-ZrP particles and the peeled ?-TiP particles are in a nematic state. The orientation of at least one of the ?-ZrP particles or the ?-TiP particles is changed by an electric field applied to the electrode.Type: GrantFiled: June 26, 2018Date of Patent: November 10, 2020Assignee: RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITYInventors: Jang Kun Song, Tianzi Shen
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Patent number: 10826081Abstract: Provided is a method for conveying a separator that ensures stably conveying a separator material without leaving an indentation or the like. The conveyance method conveys a separator material for use in a single cell of a fuel cell. A hydrogen gas and an air are supplied for the fuel cell to generate electricity. The separator material has a rectangular shape in a plan view of the separator material, and the separator material has both sides on which a pair of through-holes are formed at proximity of a pair of hydrogen distribution ports through which a hydrogen gas flows. The conveyance method includes, when the separator material is conveyed, inserting a conveyance pin into each of the through-holes formed on the separator material, and in a state where the conveyance pin is inserted in each of the through-holes, conveying the separator material while pulling the separator material in a direction in which the conveyance pins mutually separate.Type: GrantFiled: April 5, 2019Date of Patent: November 3, 2020Assignee: Toyota Jidosha Kabushiki KaishaInventor: Yusuke Oba
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Patent number: 10727493Abstract: In order to provide a novel oriented apatite-type oxide ion conductor which can achieve an increase in area through suppression of crack generation and preferably can be manufactured more inexpensively by an uncomplicated process, an oriented apatite-type oxide ion conductor composed of a composite oxide represented by A9.33+x[T6?yMy]O26.00+z A in the formula is one kind or two or more kinds of elements selected from the group consisting of La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Be, Mg, Ca, Sr, and Ba. T in the formula is an element including Si, Ge, or both of them. M in the formula is one kind or two or more kinds of elements selected from the group consisting of B, Ge, Zn, Sn, W, and Mo.Type: GrantFiled: December 9, 2015Date of Patent: July 28, 2020Assignee: Mitsui Mining & Smelting Co., Ltd.Inventors: Shingo Ide, Yuichi Anno, Yasuhisa Izutsu, Jun Omura, Rintaro Ishii, Minoru Kahata
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Patent number: 10727497Abstract: Disclosed herein is a porous electrode substrate in which carbon fibers are dispersed in the structure thereof have a fiber diameter of 3-15 micron and a fiber length of 2-30 mm, and are bound to one another by carbonized resin such that, when a pore distribution in the porous electrode is determined with a mercury intrusion porosimeter, such that a pore distribution curve is plotted on a graph having a common logarithmic scale on the horizontal axis, and a 1-100 micron pore diameter range of the pore distribution curve includes 80 or more measurement points at equal intervals along the common logarithmic scale, the pore distribution has a skewness S of ?2.0<S<?0.8 and a kurtosis K of 3.5<K<10 in the 1-100 micron pore diameter range.Type: GrantFiled: November 4, 2015Date of Patent: July 28, 2020Assignee: Mitsubishi Chemical CorporationInventors: Hiroto Tatsuno, Makoto Nakamura
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Patent number: 10651483Abstract: A method for producing an electrochemical cell is provided, the method including determining a spatial distribution (kx,yf) of a parameter of interest (k) representative of a permeability of a diffusion layer of at least one electrode of a reference electrochemical cell in operation, the determining being performed by defining a spatial distribution (Tx,yc) of a set-point temperature (Tc) within the cell in operation, by measuring a spatial distribution (Dx,yr) of a first thermal quantity (Dr) representative of local removal of heat, by estimating a spatial distribution (Qx,ye) of a second thermal quantity (Qe) representative of local production of heat (Qe), and by determining the spatial distribution (kx/yf) depending on the estimated spatial distribution (Qx,ye), and the method further including producing the electrochemical cell based on the reference electrochemical cell and in which the parameter of interest (k) has the determined spatial distribution (kx,yf).Type: GrantFiled: September 21, 2016Date of Patent: May 12, 2020Assignee: Commissariat A L'Energie Atomique et aux Energies AlternativesInventors: Christophe Robin, Remi Vincent, Mathias Gerard, Lara Jabbour
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Patent number: 10615440Abstract: A power cell and a method for fabricating a power cell including two body portions and a proton exchange membrane (PEM) there between. The body portions each include a reaction chamber for holding an anolyte solution including a photosynthetic organism or a catholyte solution. At least one body portion has an optically transparent window to allow light into the reaction chamber enabling a photosynthetic reaction. A thin metal layer is coated directly on each of first and second surfaces of the PEM and then the two body portions are coupled together with the PEM located there between. Coating the first thin metal layer on the surfaces of the PEM involves coating a thin gold layer onto the surface, covering the gold layer with a layer of photoresist, patterning the photoresist layer through a mask, exposing the photoresist layer to ultraviolet radiation, and removing the unexposed photoresist.Type: GrantFiled: October 4, 2012Date of Patent: April 7, 2020Assignee: Muthukumaran PackirisamyInventors: Muthukumaran Packirisamy, Mehdi Shahparnia
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Patent number: 10581109Abstract: A method of forming an all solid-state thin-film battery that can be scaled down and be integrated into a CMOS process is provided. The method includes a lift-off process in which battery material layers formed upon a patterned sacrificial material are removed from a bottom electrode, while battery material layers that are formed directly on a surface of the bottom electrode remain after performing the lift-off process. In some embodiments, a solid-state lithium based battery can be formed that includes a thin lithiated cathode material layer (thickness of less than 200 nm) composed of LiCoO2. Such a solid-state lithium based battery exhibits enhanced battery performance in terms of charge rate and specific charge capacity.Type: GrantFiled: March 30, 2017Date of Patent: March 3, 2020Assignee: International Business Machines CorporationInventors: Joel P. de Souza, Yun Seog Lee, Kunal Mukherjee, Devendra K. Sadana
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Patent number: 10446857Abstract: A fuel cell includes: a membrane electrode assembly; a porous member arranged on a cathode side of the membrane electrode assembly and having a first surface, a second surface, and an end surface portion, the end surface portion being between an end side portion of the first surface and the second surface; a sealing plate arranged along the end side portion of the first surface; and a separator plate arranged on the second surface. The porous member supplies oxidant gas to the membrane electrode assembly through the first surface, and discharges oxidant off-gas to a discharge portion of the fuel ceil via the end surface portion. The first surface has a first region facing the sealing plate and being between the sealing plate and the second region, the second surface has a second region. A hydrophilicity of the first region is different from that of the second region.Type: GrantFiled: September 22, 2015Date of Patent: October 15, 2019Assignee: Toyota Jidosha Kabushiki KaishaInventors: Tomoo Yoshizumi, Takashi Kondou
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Patent number: 10361446Abstract: The present invention discloses a process for the preparation of poly-benzimidazole (PBI) based membrane electrode assembly (MEA) with improved fuel cell performance and stability. It discloses a simple strategy to overcome the leaching of phosphoric acid (PA) from the membrane during fuel cell operation by an in-situ Current-Voltage (I-V) assisted doping of membrane with PA. The invention provides an improved method for the preparation of membrane electrode assembly (MEA) wherein said MEA possess high stability and improved fuel cell performance achieved by overcoming the leaching of phosphoric acid during cell operation.Type: GrantFiled: December 9, 2014Date of Patent: July 23, 2019Assignee: COUNCIL OF SCIENTIFIC & INDUSTRIAL RESEARCHInventors: Sreekumar Kurungot, Rajith Illathvalappil, Siddheshwar Navanath Bhange, Sreekuttan Maraveedu Unni
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Patent number: 10205174Abstract: An electrode catalyst ink composition which includes metal oxide-based electrode catalyst particles, an electrolyte, and a mixed liquid medium, wherein the mixed liquid medium contains 40 to 85% by mass of water; 5 to 30% by mass of an aqueous solvent (A) that has an evaporation rate of 2.0 or lower when the evaporation rate of water at 25° C. is 1, and a solubility parameter (SP value) of not less than 9; and 10 to 30% by mass of a monoalcohol (B) that has an evaporation rate of higher than 2.0 when the evaporation rate of water at 25° C. is 1, and not more than 3 carbon atoms, provided that the total amount of the mixed liquid medium is 100% by mass.Type: GrantFiled: August 26, 2014Date of Patent: February 12, 2019Assignee: SHOWA DENKO K.K.Inventors: Tatsuya Fukuta, Takashi Sato, Masayuki Yoshimura, Yuji Ito
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Patent number: 10096836Abstract: Disclosed is an electrode. An electrode according to the present invention includes an active material layer; and a current collector which includes a plurality of conductive filaments, wherein at least one from among the plurality of conductive filaments is embedded in the active material layer so that a set length is exposed from the surface thereof.Type: GrantFiled: January 27, 2016Date of Patent: October 9, 2018Assignee: Industry-Academic Cooperation Foundation Gyeongsang National UniversityInventors: Gyu-bong Cho, Tae-hyeon Nam, Ho-suk Ryu, Hyo-jun Ahn, Ki-won Kim, Jou-hyeon Ahn, Kwon-koo Cho
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Patent number: 9985295Abstract: A solid oxide fuel cell is disclosed. The fuel cell includes a porous anode, formed of finely-dispersed nickel/stabilized-zirconia powder particles. The particles have an average diameter of less than about 300 nanometers. They are also characterized by a tri-phase length of greater than about 50 ?m/?m3. A solid oxide fuel cell stack is also described, along with a method of forming an anode for a solid oxide fuel cell. The method includes the step of using a spray-agglomerated, nickel oxide/stabilized-zirconia powder to form the anode.Type: GrantFiled: September 26, 2005Date of Patent: May 29, 2018Assignee: GENERAL ELECTRIC COMPANYInventors: Bastiaan Arie Korevaar, Yuk-Chiu Lau, Anteneh Kebbede, Harish Radhakrishna Acharya, Badri Narayan Ramamurthi, Gregory John Parker
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Patent number: 9985298Abstract: An activation apparatus of fuel cell stacks, which automatically performs activation and performance evaluation processes on the fuel cell stacks when the fuel cell stacks have entered a frame, includes i) a connector connection assembly configured to connect a plurality of connector probes to cell terminals of the fuel cell stack, ii) an output cable connection assembly configured to connect positive (+) output cables to the first side of the fuel cell stack, and iii) a fluid supply pipe connection assembly configured to connect negative (?) output cables to the second side of the fuel cell stack and to connect a fluid supply pipe to the manifold of the fuel cell stack.Type: GrantFiled: July 14, 2015Date of Patent: May 29, 2018Assignee: HYUNDAI MOTOR COMPANYInventor: Junhong Lim
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Patent number: 9923213Abstract: The present specification relates to a solid oxide fuel cell and a method for manufacturing the same.Type: GrantFiled: July 30, 2014Date of Patent: March 20, 2018Assignee: LG CHEM, LTD.Inventors: Jong Woo Kim, Kwangwook Choi, Dong Oh Shin, Changseok Ryoo, Gyunjoong Kim
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Patent number: 9876246Abstract: In one aspect of the present invention, a method of fabricating a fuel cell membrane-electrode-assembly (MEA) having an anode electrode, a cathode electrode, and a membrane disposed between the anode electrode and the cathode electrode, includes fabricating each of the anode electrode, the cathode electrode, and the membrane separately by electrospinning; and placing the membrane between the anode electrode and the cathode electrode, and pressing then together to form the fuel cell MEA.Type: GrantFiled: December 9, 2015Date of Patent: January 23, 2018Assignee: VANDERBILT UNIVERSITYInventors: Peter N. Pintauro, Jason Ballengee, Matthew Brodt
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Patent number: 9847535Abstract: The present invention provides a fuel cell stack with enhanced freeze-thaw durability. In particular, the fuel cell stack includes a gas diffusion layer between a membrane-electrode assembly and a bipolar plate. The gas diffusion layer has a structure that reduces contact resistance in a fuel cell and is cut at a certain angle such that the machine direction (high stiffness direction) of GDL roll is not in parallel with the major flow field direction of the bipolar plate, resulting in an increased GDL stiffness in a width direction perpendicular to a major flow field direction of a bipolar plate.Type: GrantFiled: December 12, 2014Date of Patent: December 19, 2017Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Bo Ki Hong, Kook Il Han, Sae Hoon Kim, Jae Jun Ko
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Patent number: 9837680Abstract: A method for manufacturing an electrochemical reactor, including: holding in position a first tube and a shaft extending in a same direction, the first tube including a bore in which a beam is housed; forming a stack which alternates bipolar plates and membrane/electrode assemblies, each bipolar plate and each membrane/electrode assembly including first and second openings through which the first tube and the shaft respectively extend; compressing the stack between two mechanical components and removing the beam from the bore of the first tube; and connecting the bore of the first tube to a fluid flow circuit of the electrochemical reactor.Type: GrantFiled: February 3, 2015Date of Patent: December 5, 2017Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVESInventor: Jean-Philippe Poirot-Crouvezier
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Patent number: 9812719Abstract: A mixed reactant fuel cell (MRFC) including a MRFC-optimized electrocatalyst utilizing a combination of selective catalysts and selective fuel distributors.Type: GrantFiled: March 11, 2014Date of Patent: November 7, 2017Assignee: STC.UNMInventors: Alexey Serov, Plamen B Atanassov, Elod Gyenge, Amin Aziznia
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Patent number: 9782764Abstract: Method for producing a substrate with Au (gold) nanoclusters affixed to the surface thereof and substrate and catalyst obtained by means of said method. The method consists in preparing a solution containing, in disperse form, Au nanoclusters and, also in disperse form, a substrate with a surface functionalized with a polyelectrolyte that confers a net electric charge thereon, and in intensely agitating said solution to affix Au nanoclusters to the substrate surface. This results in a substrate that has a surface with Au nanoclusters affixed in disperse form, significantly without clusters. The invention also relates to a catalyst that comprises said substrate with Au nanoclusters affixed to the surface thereof. Said catalyst is particularly suitable for use in oxidation reactions.Type: GrantFiled: October 17, 2012Date of Patent: October 10, 2017Assignee: UNIVERSITAT POLITÈCNICA DE CATALUNYAInventors: Ernest Mendoza Gómez, Jordi Llorca Piqué
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Patent number: 9666871Abstract: A solid oxide fuel cell (SOFC) for use in generating electricity while tolerating sulfur content in a fuel input stream. The solid oxide fuel cell includes an electrolyte, a cathode, and a sulfur tolerant anode. The cathode is disposed on a first side of the electrolyte. The sulfur tolerant anode is disposed on a second side of the electrolyte opposite the cathode. The sulfur tolerant anode includes a composition of nickel, copper, and ceria to exhibit a substantially stable operating voltage at a constant current density in the presence of the sulfur content within the fuel input stream. The solid oxide fuel cell is useful within a SOFC stack to generate electricity from reformate which includes synthesis gas (syngas) and sulfur content. The solid oxide fuel cell is also useful within a SOFC stack to generate electricity from unreformed hydrocarbon fuel.Type: GrantFiled: September 29, 2008Date of Patent: May 30, 2017Assignee: CERAMATEC, INC.Inventors: Singaravelu Elangovan, Joseph J. Hartvigsen
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Patent number: 9522427Abstract: Provided are a perfluorinated sulfonic acid polymer membrane having a porous surface layer, which includes a surface layer and a bottom layer present at the bottom of the surface layer, wherein the surface layer is a porous layer, and the bottom layer is non-porous dense layer, and a method for preparing the same through a solvent evaporation process.Type: GrantFiled: March 12, 2013Date of Patent: December 20, 2016Assignee: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Dirk Henkensmeier, Quoc Khanh Dang, Chang Won Yoon, Eun Ae Cho, Suk Woo Nam, Tae Hoon Lim, Hyoung-Juhn Kim, Jong Hyun Jang
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Patent number: 9509007Abstract: A transferring method for transferring a catalyst layer to a desired position on an electrolyte film includes the following processes. A multi-layer body is formed by stacking base materials and an electrolyte film on one another such that catalyst layers formed on the base materials are brought into contact with the electrolyte film. The multi-layer body is pressed from a stacking direction. The multi-layer body is heated to a first temperature. The heating is stopped after a predetermined time passes from when pressing is started. The pressing is stopped when the temperature of the catalyst layers becomes a second temperature or lower, which is a temperature lower than the first temperature, after the heating is stopped.Type: GrantFiled: June 24, 2013Date of Patent: November 29, 2016Assignee: Nissan Motor Co., Ltd.Inventors: Masaya Yamamoto, Kenichi Toyoshima, Kei Ono, Norifumi Horibe, Takayuki Terasaki
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Patent number: 9425461Abstract: A process for rejuvenating fuel cells has been demonstrated to improve the performance of polymer exchange membrane fuel cells with platinum/ionomer electrodes. The process involves dehydrating a fuel cell and exposing at least the cathode of the fuel cell to dry gas (nitrogen, for example) at a temperature higher than the operating temperature of the fuel cell. The process may be used to prolong the operating lifetime of an automotive fuel cell.Type: GrantFiled: April 17, 2014Date of Patent: August 23, 2016Assignee: LOS ALAMOS NATIONAL SECURITY, LLCInventors: Yu Seung Kim, David A. Langlois
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Patent number: 9397357Abstract: A membrane electrode assembly for a fuel cell is disclosed, which comprises at least one porous ionomer containing layer disposed at the interface between the cathode electrocatalyst material and the ion exchange membrane of the fuel cell. The porous ionomer containing layer comprises a catalyst migration impeding compound. The membrane electrode assembly exhibits improved stability against Pt dissolution and Pt-band formation within the ion exchange membrane, hence having improved durability and lifetime performance.Type: GrantFiled: April 15, 2011Date of Patent: July 19, 2016Assignees: Daimler AG, Ford Motor CompanyInventors: Dmitri Bessarabov, Sumit Kundu, Stephen Lee, Scott McDermid
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Patent number: 9289753Abstract: Provided is a substrate for carbon nanotube growth in which no metal particles as a catalyst aggregates and a method for manufacturing the substrate. A substrate for carbon nanotube growth 1 includes a base plate 2, a catalyst 3, a form-defining material layer 4 which allows the catalyst 3 to be dispersed and arranged, and a covering layer 5 which has a metal oxide to cover the catalyst. A method for manufacturing a substrate for carbon nanotube growth 1 includes a step of sputtering on a base plate 2 a metal which forms a catalyst 3 and oxidizing the surface of the metal, a step of sputtering a form-defining material on the base plate 2, and a step of further sputtering on the form-defining material a metal which forms a catalyst 3 and oxidizing the surface of the metal.Type: GrantFiled: December 3, 2013Date of Patent: March 22, 2016Assignee: HONDA MOTOR CO., LTD.Inventors: Toshiyuki Ohashi, Toshio Tokune, Masahiro Ohta, Ryogo Kato, Toshiyuki Shima
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Patent number: 9257724Abstract: A reaction chamber arrangement is provided, the reaction chamber arrangement including a first chemical reaction chamber; a second chemical reaction chamber; an isolation member between the first chemical reaction chamber and the second chemical reaction chamber, wherein a first electrode is mounted on a first side of the isolation member, an exposed surface of the first electrode facing into the first chemical reaction chamber and wherein a second electrode is mounted on a second side of the isolation member, an exposed surface of the second electrode facing into the second chemical reaction chamber; and an electronic component configured to measure or control at least one of the first chemical reaction chamber and the second chemical reaction chamber, wherein the electronic component is arranged between and connected to the first electrode and the second electrode, and at least partially surrounded by an isolation material of the isolation member.Type: GrantFiled: December 23, 2011Date of Patent: February 9, 2016Assignee: INFINEON TECHNOLOGIES AGInventor: Klaus Elian
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Patent number: 9240607Abstract: Provided are a polymer electrolyte membrane used in fuel cells, and a method for producing the same, the method including a step of filling a crosslinkable ion conductor in the pores of a porous nanoweb support; and a step of crosslinking the ion conductor filled in the pores of the porous nanoweb support. The method for producing a polymer electrolyte membrane uses a relatively smaller amount of an organic solvent, can ameliorate defects of the support caused by solvent evaporation, and can enhance the impregnability of the ion conductor to the support and the convenience of the process.Type: GrantFiled: April 2, 2012Date of Patent: January 19, 2016Assignee: KOLON INDUSTRIES, INC.Inventors: Dong Hoon Lee, Na Young Kim, Moo Seok Lee, Yong Cheol Shin
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Patent number: 9190671Abstract: A hydrogen fuel cell comprising: an anode; a cathode; an electrolyte; a source of a hydrogen-containing fuel for the fuel cell; and a source of an oxidant for the fuel cell; wherein the anode and, optionally, the cathode includes a catalyst comprising an alloy of the formula (I): PdxBiyMz??(I) wherein: M is one or more metals; x is 0.2 to 0.4; y is 0.6 to 0.8; z is not greater than 0.1; and x+y+z=1; is described. Catalysts and electrodes for hydrogen fuel cells comprising the alloy and electrochemical methods using the alloy catalysts are also described.Type: GrantFiled: March 21, 2011Date of Patent: November 17, 2015Assignee: University of SouthamptonInventors: Alexandros Anastasopoulos, Brian Elliott Hayden
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Patent number: 9065091Abstract: A fuel cell includes an electrolyte-electrode assembly, a frame member, a first separator, and a second separator. The frame member is provided to face a first surface of the second separator and includes a resin wall which forms a periphery of a first reactant gas passage. The resin wall has a thin-walled portion which overlaps with a cooling medium connecting portion in a stacking direction and which protrudes toward the first reactant gas passage in the stacking direction by a first dimension from a surface of the frame member. Another portion of the resin wall protrudes toward the second separator in the stacking direction by a second dimension from the surface of the frame member. The first dimension is smaller than the second dimension.Type: GrantFiled: May 13, 2013Date of Patent: June 23, 2015Assignee: HONDA MOTOR CO., LTD.Inventors: Kentaro Ishida, Shuhei Goto, Yukihito Tanaka, Seiji Sugiura
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Publication number: 20150147680Abstract: The present invention relates to highly functional composite nanoparticles including a support body formed of nanoparticles and first phase nanoparticles which are condensed on the surfaces of the support body particles after being evaporated through a physical vapor deposition process, and to a method for producing same. According to the present invention, a physical vapor deposition process is used instead of a wet process so as to produce eco-friendly composite nanoparticles that do not emit hazardous chemicals while having high economic feasibility and process reproducibility.Type: ApplicationFiled: March 26, 2013Publication date: May 28, 2015Inventors: Han-Shin Choi, Hye-Sook Joo, Chul-Woong Han
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Publication number: 20150147679Abstract: A method of making an interconnect for a solid oxide fuel cell stack includes providing a chromium alloy interconnect and providing a nickel mesh in contact with a fuel side of the interconnect. Formation of a chromium oxide layer is reduced or avoided in locations between the nickel mesh and the fuel side of the interconnect. A Cr—Ni alloy or a Cr—Fe—Ni alloy is located at least in the fuel side of the interconnect under the nickel mesh.Type: ApplicationFiled: November 17, 2014Publication date: May 28, 2015Inventors: Daniel DARGA, Tad ARMSTRONG, Vijay SRIVATSAN, Harald HERCHEN, Cheng-Yu LIN
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COMPOSITE SEPARATOR FOR POLYMER ELECTROLYTE MEMBRANE FUEL CELL AND METHOD FOR MANUFACTURING THE SAME
Publication number: 20150140472Abstract: The present invention provides a composite separator for a polymer electrolyte membrane fuel cell (PEMFC) and a method for manufacturing the same, in which a graphite foil prepared by compressing expanded graphite is stacked on a carbon fiber-reinforced composite prepreg or a mixed solution prepared by mixing graphite flake and powder with a resin solvent is applied to the cured composite prepreg such that a graphite layer is integrally molded on the outermost end of the separator.Type: ApplicationFiled: January 26, 2015Publication date: May 21, 2015Inventors: Dai Gil Lee, Ha Na Yu, Jun Woo Lim, Sae Hoon Kim, Jung Do Suh, Byung Ki Ahn -
Publication number: 20150140456Abstract: An electrochemical battery cell is provided having a housing formed by a can and a cup, with a sealing gasket disposed therebetween. First and second electrodes and electrolyte are disposed within the housing. The cup has a peripheral wall and a cup edge portion that extends inward, away from the can wall at angle less than 180° relative to a longitudinal axis of the cell housing. The gasket likewise has a base that extends inward, and a surface of the cup edge portion is sealingly engaged with the gasket base.Type: ApplicationFiled: November 15, 2013Publication date: May 21, 2015Inventors: Jeremy L. Allen, Robert M. Janmey
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Patent number: 9034538Abstract: Fuel cell membrane electrode assemblies and fuel cell polymer electrolyte membranes are provided comprising bound anionic functional groups and polyvalent cations, such as Mn or Ru cations, which demonstrate increased durability. Methods of making same are also provided.Type: GrantFiled: August 24, 2010Date of Patent: May 19, 2015Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Matthew H. Frey, Steven J. Hamrock, Gregory M. Haugen, Phat T. Pham
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Publication number: 20150132673Abstract: A fuel cell assembly comprising a plurality of fuel cell plates in a stack. The stack defines an air inlet face and/or an air outlet face; and two opposing engagement faces. The fuel cell assembly also comprises a detachable cover configured to releasably engage the two engagement faces in order to define an air chamber with the air inlet or outlet face.Type: ApplicationFiled: April 24, 2013Publication date: May 14, 2015Inventor: Peter David Hood