With Gas Diffusion Electrode Patents (Class 429/480)
  • Patent number: 10734657
    Abstract: A membrane electrode assembly is provided that includes a polymer electrolyte membrane and a catalyst layer provided on a surface of the polymer electrolyte membrane. The catalyst layer comprises catalyst particles and an ionomer film surrounding each of the catalyst particles. The ionomer film has an oxygen permeability of approximately 6.0×1012 mol/cm/s to 15.0×1012 mol/cm/s at 80° C. and a relative humidity of approximately 30% to 100%.
    Type: Grant
    Filed: February 28, 2017
    Date of Patent: August 4, 2020
    Assignee: Nissan North America, Inc.
    Inventor: Rameshwar Yadav
  • Patent number: 10693147
    Abstract: The present specification relates to a fuel cell and a method for manufacturing the same.
    Type: Grant
    Filed: November 7, 2014
    Date of Patent: June 23, 2020
    Assignee: LG CHEM, LTD.
    Inventors: Jun Yeon Cho, Sang Hoon Kim, Gyo Hyun Hwang, Kwanghyun Kim
  • Patent number: 10665873
    Abstract: A resin frame equipped membrane electrode assembly includes an MEA having different sizes of components, and a resin frame member. A resin melt portion is provided for the resin frame member. The inside of a first gas diffusion layer is impregnated with resin as a part of the resin melt portion. A thin portion is provided at an outermost peripheral portion of the resin frame member through a step at an outermost peripheral portion of the resin melt portion, and the thin portion is thinner in a thickness direction than the resin melt portion.
    Type: Grant
    Filed: October 18, 2016
    Date of Patent: May 26, 2020
    Assignee: Honda Motor Co., Ltd.
    Inventors: Suguru Ohmori, Yukihito Tanaka, Yoshihito Kimura, Ryugo Fujitsuka, Shintaro Tanaka, Masaki Tani
  • Patent number: 10651477
    Abstract: A porous carbon electrode substrate hardly causes a short circuit when used in a fuel cell, and from which carbon fibers protruding from the substrate surface, carbon fibers that protrude from the substrate surface when the porous carbon electrode substrate is pressurized in a direction perpendicular to a surface thereof, and short carbon fibers that are insufficiently bonded at the substrate surface have been sufficiently removed. The porous carbon electrode substrate includes short carbon fibers and carbonized resin bonding the short carbon fibers, the porous carbon electrode substrate having an average short circuit current value measured at a first surface of 10 mA or less.
    Type: Grant
    Filed: March 22, 2016
    Date of Patent: May 12, 2020
    Assignee: Toray Industries, Inc.
    Inventors: Mikio Inoue, Takayuki Oda, Tamotsu Suzuki
  • Patent number: 10637087
    Abstract: The electrolyte membrane of the present disclosure includes a phase A forming a matrix phase, and a phase B. The phase B is continuous from a first principal surface of the electrolyte membrane to a second principal surface of the electrolyte membrane opposite to the first principal surface. The phase B includes a graft polymer having a main chain and a graft chain. The graft chain has a functional group having anion-exchange ability. The main chain preferably has no functional group having anion-exchange ability. The electrolyte membrane of the present disclosure can reliably maintain the function as a separation membrane even when decomposition reaction by a peroxide occurs.
    Type: Grant
    Filed: December 9, 2016
    Date of Patent: April 28, 2020
    Assignee: NITTO DENKO CORPORATION
    Inventors: Mizuki Yamamoto, Koso Matsuda, Takeshi Nakano
  • Patent number: 10629918
    Abstract: 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: Grant
    Filed: April 1, 2011
    Date of Patent: April 21, 2020
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Bo Ki Hong, Kook Il Han, Sae Hoon Kim, Jae Jun Ko
  • Patent number: 10615429
    Abstract: The invention relates to a fuel cell stack (1), comprising: —bipolar plates (10), each having an active region (13a), wherein a surface of the bipolar plate is formed non-profiled at least in the active region (13a), —a membrane electrode assembly (20), arranged between two bipolar plates (10), and—a gas distribution layer (30) arranged between the membrane electrode assembly (20) and at least one of the bipolar plates (10), wherein the gas distribution layer (30) comprises a porous flow body (31). It is provided that the gas distribution layer (30) includes recesses (32) in the active region (13a).
    Type: Grant
    Filed: July 21, 2016
    Date of Patent: April 7, 2020
    Assignees: VOLKSWAGEN AG, AUDI AG
    Inventor: Hannes Scholz
  • Patent number: 10601056
    Abstract: A heat treatment method for a membrane electrode assembly (MEA) of a fuel cell includes: placing a power supply plate on a surface of the MEA or on a surface of an assembly of the MEA and a gas diffusion layer (GDL); and performing heat treatment on a surface or interior of the power supply plate by applying power to the power supply plate.
    Type: Grant
    Filed: September 1, 2017
    Date of Patent: March 24, 2020
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Woo Jin Lee, Yong Min Kim, Min Kyung Kim, Ki Sub Lee, Min Jin Kim
  • Patent number: 10573905
    Abstract: In a power generation cell, first bypass stop protrusions for preventing bypassing of an oxygen-containing gas are provided between an end of an oxygen-containing gas flow field in a flow field width direction and an outer peripheral bead. An end wavy ridge includes curves recessed away from the outer peripheral bead. The first bypass stop protrusions are provided between the recessed curves and the outer peripheral bead. A first metal separator has first support protrusions for supporting a cathode, between the recessed curves and the first bypass stop protrusions.
    Type: Grant
    Filed: October 25, 2018
    Date of Patent: February 25, 2020
    Assignee: Honda Motor Co., Ltd.
    Inventors: Kentaro Ishida, Yu Tomana, Kenji Sasaki
  • Patent number: 10573915
    Abstract: A membrane electrode assembly includes a polymer electrolyte membrane; a first electrode layer disposed on an upper surface of the polymer electrolyte membrane; and a second electrode layer disposed on a lower surface of the polymer electrolyte membrane. At least one end of the polymer electrolyte membrane is bent upward along a side of the first electrode layer and extends to an upper surface of the first electrode layer or is bent downward along a side of the second electrode layer and extends to a lower surface of the second electrode layer.
    Type: Grant
    Filed: October 10, 2016
    Date of Patent: February 25, 2020
    Assignee: Hyundai Motor Company
    Inventor: Byeong-Heon Jeong
  • Patent number: 10563313
    Abstract: An active layer/membrane assembly to be incorporated into a hydrogen production device comprises an active layer in contact with a membrane capable of exchanging ions, the active layer comprising catalyst particles and particles referred to as support particles, wherein the size of the support particles is greater than the thickness of the active layer, so that the support particles emerge from the active layer, at the surface opposite the surface in contact with the membrane. A unit comprising the assembly and a porous current collector, the assembly and the collector having a complementarity of surface finish is provided. A process for manufacturing the assembly is also provided.
    Type: Grant
    Filed: July 16, 2014
    Date of Patent: February 18, 2020
    Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Eric Mayousse, Caroline Rozain
  • Patent number: 10559835
    Abstract: A resin-framed membrane-electrode assembly for a fuel cell includes a stepped membrane-electrode assembly and a resin frame member. The stepped membrane-electrode assembly includes a polymer electrolyte membrane, a first electrode, and a second electrode. The resin frame member surrounds an outer perimeter of the polymer electrolyte membrane and includes an inner perimeter base end and an inner protruding portion. The inner protruding portion includes a flat surface portion which extends to face an outer perimeter surface portion of a second surface of the polymer electrolyte membrane and on which an adhesive layer is provided so that the adhesive layer lies at least between the flat surface portion and the outer perimeter surface portion. The adhesive layer has a tapered shape in which a thickness of the adhesive layer increases from a tip of the inner protruding portion toward the inner perimeter base end.
    Type: Grant
    Filed: November 18, 2015
    Date of Patent: February 11, 2020
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Yukihito Tanaka, Naoki Mitsuta, Seiji Sugiura, Suguru Omori
  • Patent number: 10535888
    Abstract: A membrane electrode assembly of an embodiment includes: a first electrode having a first base, and a first catalyst layer provided on the first base, the first catalyst layer including a plurality of first catalyst units with a laminated structure, and the laminated structure including void layers; and an electrolyte membrane being in direct contact with both first surfaces of the first catalyst units facing each other among the first catalyst units, and second surfaces of the first catalyst units on the opposite side from the first base side. A portion is included where the electrolyte membrane exists over a region being at least 80% of a thickness of the first catalyst layer from the second surfaces of the first catalyst units toward the first base.
    Type: Grant
    Filed: September 15, 2017
    Date of Patent: January 14, 2020
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yoshihiko Nakano, Wu Mei, Taishi Fukazawa, Yuta Kanai, Hiroki Hiraga
  • Patent number: 10512907
    Abstract: Provided is a resin including a copolymer having a first structural unit and/or second structural unit and a structural unit having a polar group. R1, R2, R5, and R6 are each independently a hydrogen atom or an alkyl group having 1 to 8 carbon atoms, R3 and R4 are each independently a hydrogen atom or an alkyl group having 1 to 18 carbon atoms, A1 is a saturated carbon chain having 3 to 7 carbon atoms or a structure resulting from substitution of a heteroatom for a part of the carbon atoms of the saturated carbon chain, m and n are each independently 0 or 1, and X1 and X2 are each independently a halide ion, a hydroxide ion, or an anion of an organic or inorganic acid.
    Type: Grant
    Filed: March 11, 2016
    Date of Patent: December 24, 2019
    Assignee: NITTO DENKO CORPORATION
    Inventors: Mizuki Yamamoto, Takeshi Nakano, Koso Matsuda, Hiroyuki Nishii, Takashi Suzuki
  • Patent number: 10511036
    Abstract: A channel forming body used in a fuel cell module has a gas channel, a water conduit, and a communication path that provides communication between the gas channel and the water conduit. When a ridge is seen in a cross-section perpendicular to a channel extension direction, one of both ends of an external shape of the ridge is shaped so as to be located closer to a center of the ridge than an imaginary surface of the channel assumed to extend in a straight line along the channel extension direction. Portions of the ridge located closer to the center of the ridge are formed opposite from each other at left and right ends of the external shape of the ridge with the communication path interposed therebetween.
    Type: Grant
    Filed: May 11, 2017
    Date of Patent: December 17, 2019
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, TOYOTA SHATAI KABUSHIKI KAISHA
    Inventors: Hiroya Nakaji, Kazunori Shibata, Hiroki Okabe, Kousuke Kawajiri, Satoshi Futami, Keiji Hashimoto, Takamasa Kanie
  • Patent number: 10497947
    Abstract: A seal (34) for a fuel cell (10), which includes multiple bipolar plates (13) and at least one membrane electrode assembly (12), the seal (34) having a seal body (40) surrounding a free inner chamber (42) is provided. It is provided that at least two flow barriers (46) pointing into the inner chamber (42) are formed as a single piece with the seal body (40), the flow barriers (46) being situated at a distance from the seal body (40) by at least one connecting element (48).
    Type: Grant
    Filed: January 22, 2016
    Date of Patent: December 3, 2019
    Assignees: Volkswagen AG, Audi AG
    Inventors: Ian Stewart, Darcy McGowan
  • Patent number: 10476086
    Abstract: A resin-framed stepped membrane electrode assembly for a fuel cell, includes a stepped membrane electrode assembly and a resin frame member. The resin frame member surrounds a membrane outer periphery end of a solid polymer electrolyte membrane and includes an inner protruding portion protruding from the membrane outer periphery end toward a second electrode and is joined to the stepped membrane electrode assembly with an adhesive. The inner protruding portion includes a bank portion, a groove portion, and a ledge portion. The roughness of the bank surface is smaller than a roughness of the groove surface.
    Type: Grant
    Filed: March 8, 2017
    Date of Patent: November 12, 2019
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Eri Terada, Kazuo Nunokawa, Satoru Terada, Masaki Tani, Shintaro Tanaka, Seiji Sugiura
  • Patent number: 10439227
    Abstract: An air battery cathode including an organic-inorganic composite material including lyophobic nanopores, the organic-inorganic composite material including a porous metal oxide, and a lyophobic layer on a surface of a pore of the porous metal oxide and having a contact angle of greater than about 90°; and a binder. Also a lithium air battery including the cathode, and a method of manufacture the cathode.
    Type: Grant
    Filed: March 8, 2018
    Date of Patent: October 8, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Victor Roev, Dong-min Im, Sang-bok Ma, Won-sung Choi, Min-sik Park, Dong-joon Lee
  • Patent number: 10411269
    Abstract: A gas diffusion electrode substrate that is used in a fuel cell and is constituted by an electrode substrate and microporous parts, in which a microporous part (A) is formed on one surface of the electrode substrate, and a microporous part (B) is formed in a part of the inside of the electrode substrate, the gas diffusion electrode substrate having a part in which the microporous part (B) is continuously present from the electrode substrate surface on the side on which the microporous part (A) is formed to a position near the electrode substrate surface on the opposite side, and a part in which pores are continuously distributed from the electrode substrate surface on the side on which the microporous part A is formed to the electrode substrate surface on the opposite side.
    Type: Grant
    Filed: February 17, 2015
    Date of Patent: September 10, 2019
    Assignee: TORAY INDUSTRIES, INC.
    Inventors: Yasuaki Tanimura, Masamichi Utsunomiya, Toshiya Kamae
  • Patent number: 10403910
    Abstract: Disclosed herein is a fuel cell stack with improved manufacturing performance. The fuel cell stack includes: a separator that comprises a diffusion part, as being provided with a diffusion channel, configured to distribute reaction gas and cooling water and a reaction part, as being continuously formed from the diffusion part and provided with a reaction channel that has a height greater than that of the diffusion channel, configured to move reaction gas distributed from the diffusion part and generate electrons by a chemical reaction; and a gas diffusion layer configured to contact the separator at the diffusion part and the reaction part.
    Type: Grant
    Filed: November 17, 2015
    Date of Patent: September 3, 2019
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Sang Mun Jin, Yoo Chang Yang
  • Patent number: 10388968
    Abstract: An illustrative example fuel cell component assembly includes a gas diffusion layer having a gas diffusion layer surface on one side. A microporous layer adjacent the gas diffusion layer includes a first portion having a first density and a second portion having a second density that is lower than the first density. The first portion and the second portion are arranged in a preselected pattern along the microporous layer. The first portion contacts a first section of the gas diffusion layer surface and the second portion contacts a second section of the gas diffusion layer surface.
    Type: Grant
    Filed: January 16, 2014
    Date of Patent: August 20, 2019
    Assignee: AUDI AG
    Inventors: Siddique Ali Khateeb Razack, Robert Mason Darling
  • Patent number: 10374243
    Abstract: Provided is a porous current collector which is used for a fuel electrode and has a high gas reforming function and high durability. A porous current collector 9 is provided adjacent to a fuel electrode 4 of a fuel cell 101 that includes a solid electrolyte layer 2, the fuel electrode 4 disposed on one side of the solid electrolyte layer, and an air electrode 3 disposed on the other side. The porous current collector includes a porous metal body 1 and a first catalyst 20. The porous metal body has an alloy layer 12a at least on a surface thereof, the alloy layer containing nickel (Ni) and tin (Sn). The first catalyst, which is in the form of particles, is supported on a surface of the alloy layer, the surface facing pores of the porous metal body, and is capable of processing a carbon component contained in a fuel gas that flows inside the pores.
    Type: Grant
    Filed: February 23, 2015
    Date of Patent: August 6, 2019
    Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Takahiro Higashino, Masatoshi Majima, Hiromasa Tawarayama, Naho Mizuhara, Kazuki Okuno, Chihiro Hiraiwa, Yohei Noda, Masahiro Kato
  • Patent number: 10361445
    Abstract: A microporous layer sheet for a fuel cell according to the present invention includes at least two microporous layers, which are stacked on a gas diffusion layer substrate, and contain a carbon material and a binder. Then, the microporous layer sheet for a fuel cell is characterized in that a content of the binder in the microporous layer as a first layer located on the gas diffusion layer substrate side is smaller than contents of the binder in the microporous layers other than the first layer. The microporous layer sheet for a fuel cell, which is as described above, can ensure gas permeability and drainage performance without lowering strength. Hence, the microporous layer sheet for a fuel cell, which is as described above, can contribute to performance enhancement of a polymer electrolyte fuel cell by application thereof to a gas diffusion layer.
    Type: Grant
    Filed: May 31, 2012
    Date of Patent: July 23, 2019
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Shigemasa Kuwata, Yozo Okuyama, Kazufumi Kodama
  • Patent number: 10347929
    Abstract: Realized are a high-performance electrochemical element and solid oxide fuel cell in which the contact properties between a dense and highly-gastight electrolyte layer and an electrode layer are improved while the treatment temperature during formation of the electrolyte layer is suppressed to a low temperature, and methods for producing the same. An electrochemical element includes an electrode layer 3, and an electrolyte layer 4 arranged on the electrode layer 3, wherein the electrode layer 3 has a plurality of pores that are open on a face thereof in contact with the electrolyte layer 4, and the pores are filled with fine particles made of the same components as the electrolyte layer 4.
    Type: Grant
    Filed: September 18, 2015
    Date of Patent: July 9, 2019
    Assignees: Osaka Gas Co., Ltd., National Institute of Advanced Industrial Science and Technology
    Inventors: Mitsuaki Echigo, Hisao Ohnishi, Kyohei Manabe, Osamu Yamazaki, Kazuyuki Minami, Jun Akedo, Toshio Suzuki
  • Patent number: 10333166
    Abstract: Provided is a catalyst for fuel cell which has a high catalytic activity and enables maintaining the high catalytic activity. Disclosed is an electrode catalyst for fuel cell comprising a catalyst carrier containing carbon as a main component and a catalytic metal supported on the catalyst carrier, wherein the catalyst has the R? (D?/G intensity ratio) of 0.6 or less, which is the ratio of D? band peak intensity (D? intensity) measured in the vicinity of 1620 cm?1 relative to G band peak intensity (G intensity) measured in the vicinity of 1580 cm?1 by Raman spectroscopy, and the volume ratio of a water vapor adsorption amount relative to a nitrogen adsorption amount at a relative pressure of 0.5 in adsorption isotherm is 0.15 or more and 0.30 or less.
    Type: Grant
    Filed: October 8, 2015
    Date of Patent: June 25, 2019
    Assignees: NISSAN MOTOR CO., LTD., NIPPON STEEL CHEMICAL & MATERIAL CO., LTD.
    Inventors: Shinichi Takahashi, Tetsuya Mashio
  • Patent number: 10305115
    Abstract: A method of preparing a nitrogen containing electrode catalyst by converting a high surface area metal-organic framework (MOF) material free of platinum group metals that includes a transition metal, an organic ligand, and an organic solvent via a high temperature thermal treatment to form catalytic active sites in the MOF. At least a portion of the contained organic solvent may be replaced with a nitrogen containing organic solvent or an organometallic compound or a transition metal salt to enhance catalytic performance. The electrode catalysts may be used in various electrochemical systems, including an alkaline fuel cell.
    Type: Grant
    Filed: February 27, 2015
    Date of Patent: May 28, 2019
    Assignee: UChicago Argonne, LLC
    Inventors: Di-Jia Liu, Shengqian Ma, Gabriel A. Goenaga, Dan Zhao
  • Patent number: 10305114
    Abstract: A method of preparing a nitrogen containing electrode catalyst by converting a high surface area metal-organic framework (MOF) material free of platinum group metals that includes a transition metal, an organic ligand, and an organic solvent via a high temperature thermal treatment to form catalytic active sites in the MOF. At least a portion of the contained organic solvent may be replaced with a nitrogen containing organic solvent or an organometallic compound or a transition metal salt to enhance catalytic performance. The electrode catalysts may be used in various electrochemical systems, including a proton exchange membrane fuel cell.
    Type: Grant
    Filed: September 8, 2014
    Date of Patent: May 28, 2019
    Assignee: UChicago Argonne, LLC
    Inventors: Di-Jia Liu, Shengqian Ma, Gabriel A. Goenaga
  • Patent number: 10256480
    Abstract: In order to provide a flow element by means of which a fluid can be guided and/or distributed over a surface as uniformly as possible, it is proposed that the flow element comprises a plate-like main body, which has a channel structure, wherein the channel structure comprises two or more paths, which connect an inlet side of the channel structure to an outlet side of the channel structure, wherein the two or more channel paths each have one or more meandering segments, wherein meandering segments of channel paths different from each other are nested in each other.
    Type: Grant
    Filed: February 26, 2017
    Date of Patent: April 9, 2019
    Assignee: ElringKlinger AG
    Inventors: Juergen Kraft, Michael Goetz, Manuel Morcos
  • Patent number: 10249886
    Abstract: A fuel cell gas diffusion layer includes: a porous carbon fiber base substrate containing discontinuous carbon fibers bonded to each other with carbide, and a porous layer containing at least carbonaceous particles, the porous carbon fiber base substrate having a porous layer (A) with a mean thickness t1 of 10 to 55 ?m deposited on one surface A thereof, the porous carbon fiber base substrate being impregnated with porous layer (J) at least part of which is exposed at an opposite surface B, the porous carbon fiber base substrate having internal pores with a cross-sectional area accounting for 5% to 40% of the total cross section in a through-plane direction, at least porous layer (A) and porous layer (J) both having a void percentage of 50% to 85%, the porous carbon fiber base substrate having a thickness of 60 to 300 ?m, and the porous carbon fiber base substrate having a bulk density of 0.20 to 0.45 g/cm3.
    Type: Grant
    Filed: February 7, 2014
    Date of Patent: April 2, 2019
    Assignee: Toray Industries, Inc.
    Inventors: Yasutaka Okano, Koichi Antoku, Eisuke Wadahara
  • Patent number: 10249900
    Abstract: A method for making a composite membrane includes the steps of coating a first layer of ionomer on an intermediate support, laminating a dry porous support into the wet first layer of ionomer, impregnating the porous support with ionomer from the coated ionomer layer, optionally drying the impregnated porous support and the first layer of ionomer, coating a second layer of ionomer on the impregnated porous support, drying the second layer of ionomer until most of the solvent is evaporated, and delaminating the composite membrane from the intermediate support. The composite membrane thus obtained includes a porous support impregnated with the ionomer and on each side of the impregnated support a dense ionomer layer.
    Type: Grant
    Filed: August 25, 2014
    Date of Patent: April 2, 2019
    Assignee: AGFA-GEVAERT
    Inventors: Guido Desie, Willem Mues, Patrick Wouters, Roger Hendriks
  • Patent number: 10205178
    Abstract: A fuel cell includes a membrane electrode assembly having a substantially rectangular shape having a first side and a second side opposite to the first side in a side direction. The substantially rectangular shape includes a first portion and a second portion. The first portion is closer to the first side than to the second side in the side direction. At least one of a cathode electrode and an anode electrode has a smaller amount of cracks in an electrode catalyst layer in the first portion than in the second portion. A fuel gas outlet manifold and an oxidant gas inlet manifold are closer to the first side than to the second side in the side direction. A fuel gas inlet manifold and an oxidant gas outlet manifold are closer to the second side than to the first side in the side direction.
    Type: Grant
    Filed: October 21, 2016
    Date of Patent: February 12, 2019
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Yukihito Tanaka, Suguru Ohmori, Eri Terada
  • Patent number: 10157714
    Abstract: Provided is a process for producing a supercapacitor electrode, comprising: (a) preparing a deformable mass of multiple flakes of exfoliated graphite worms or expanded graphite dispersed in or impregnated by a liquid or gel electrolyte; and (b) subjecting the deformable mass to a forced assembling and orientating procedure, forcing the deformable mass to form the electrode, wherein these fakes are spaced by thin electrolyte layers, having an electrolyte layer thickness from 0.4 nm to 10 nm, and the flakes are substantially aligned along a desired direction, and wherein the electrode has a physical density from 0.5 to 1.7 g/cm3 and a specific surface area from 50 to 3,300 m2/g, when measured in a dried state of the flakes without the electrolyte. This process leads to a supercapacitor having a large electrode thickness, high active mass loading, high tap density, and exceptional energy density.
    Type: Grant
    Filed: August 7, 2017
    Date of Patent: December 18, 2018
    Assignee: Nanotek Instruments, Inc.
    Inventors: Aruna Zhamu, Bor Z. Jang
  • Patent number: 10141583
    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 distribution regions for feeding and discharging operating media to and from the active region, and each distribution region having a main anode-gas port for supplying and evacuating fuel, a main cathode-gas port for supplying and evacuating oxidant and a main coolant port for supplying and evacuating coolant, the ports being arranged along a lateral edge of the bipolar plate. The plates are stacked so that the bipolar plate has channels interconnecting the main operating media ports of both distribution regions, and the distribution regions have at least one overlapping section, in which the channels overlap such that they do not form fluidic connections. A fuel cell is also provided.
    Type: Grant
    Filed: April 2, 2015
    Date of Patent: November 27, 2018
    Assignee: Volkswagen AG
    Inventors: Benno Andreas-Schott, Markus Ritter, Christian Martin Zillich
  • Patent number: 10135074
    Abstract: The present invention is to provide a carbon powder that can provide a catalyst having excellent durability and a catalyst. A carbon powder for catalyst of the present invention is a carbon powder containing as a main component carbon, which has a BET specific surface area per unit weight of 900 m2/g or greater, and a ratio R? (D?/G intensity ratio) of peak intensity for a D?-band (D? intensity) measured in the vicinity of 1620 cm?1 to peak intensity for a G-band (G intensity) measured in the vicinity of 1580 cm?1 by Raman spectroscopy of 0.6 or less.
    Type: Grant
    Filed: September 9, 2014
    Date of Patent: November 20, 2018
    Assignees: NISSAN MOTOR CO., LTD., NIPPON STEEL & SUMIKIN CHEMICAL CO., LTD.
    Inventors: Shinichi Takahashi, Atsushi Ohma, Tetsuya Mashio, Ken Akizuki
  • Patent number: 10135078
    Abstract: In order to reduce corrosion of metal plates of a current collector which is comprised of the stacked metal plates made of different materials, a current collector for a fuel cell is provided, which includes a first metal plate that has a terminal portion and is conductive, and a second metal plate and a third metal plate that are metal plates having a higher corrosion resistance than the first metal plate and pinch the first metal plate therebetween. The current collector includes a first through-hole penetrating the first metal plate, the second metal plate, and the third metal plate, wherein fluid exists in at least either one of between the first metal plate and the second metal plate, and between the first metal plate and the third metal plate, and the first through-hole guides the fluid outside the current collector, and a first seal member blocking an end face of a perimeter of the current collector. A hole wall surface of the first through-hole is not blocked.
    Type: Grant
    Filed: October 5, 2015
    Date of Patent: November 20, 2018
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Fumishige Shizuku
  • Patent number: 10115972
    Abstract: An embodiment of the invention is an air cathode having a porous membrane with at least one hydrophobic surface that contacts a conductive catalytic film that comprises single walled carbon nanotubes (SWNTs) where the nanotubes are in intimate electrical contact. The conductive film can include fullerenes, metals, metal alloys, metal oxides, or electroactive polymers in addition to the SWNTs. In other embodiments of the invention the air cathode is a component of a metal-air battery or a fuel cell.
    Type: Grant
    Filed: April 22, 2010
    Date of Patent: October 30, 2018
    Assignee: University of Florida Research Foundation, Incorporated
    Inventors: Andrew Gabriel Rinzler, Rajib Kumar Das, John R. Reynolds, Ryan M. Walczak
  • Patent number: 10062911
    Abstract: Fuel cell devices and systems are provided. In certain embodiments, the devices include a ceramic support structure having a length, a width, and a thickness with the length direction being the dominant direction of thermal expansion. A reaction zone having at least one active layer therein is spaced from the first end and includes first and second opposing electrodes, associated active first and second gas passages, and electrolyte. The active first gas passage includes sub-passages extending in the y direction and spaced apart in the x direction. An artery flow passage extends from the first end along the length and into the reaction zone and is fluidicly coupled to the sub-passages of the active first gas passage. The thickness of the artery flow passage is greater than the thickness of the sub-passages.
    Type: Grant
    Filed: June 16, 2015
    Date of Patent: August 28, 2018
    Inventors: Alan Devoe, Lambert Devoe
  • Patent number: 10049784
    Abstract: Nanocomposite films comprising conductive nanofiller dispersed throughout a polymer matrix and further comprising at least two surfaces with differing amounts of filler and differing electrical resistivity values are provided. In particular, nanocomposites comprising polyvinyl alcohol as the polymer matrix and nanosheets and/or nanoplatelets of graphene as the conductive filler are provided. In addition, a process for forming the nanocomposites, methods for characterizing the nanocomposites as well as applications in or on electrical and/or electronic devices are provided.
    Type: Grant
    Filed: October 7, 2015
    Date of Patent: August 14, 2018
    Assignee: King Fahd University of Petroleum and Minerals
    Inventors: Mamdouh Ahmed Al-Harthi, Osamah Awadh Bin-Dahman, Mostafizur Rahaman
  • Patent number: 9985297
    Abstract: A durability test device that examines durability of a membrane electrode assembly used for a polymer electrolyte fuel cell includes: a voltage application device that applies a voltage from one surface of the membrane electrode assembly to the other surface thereof; a current measurement device that measures a current flowing from the one surface to the other surface by the application of the voltage; and a control section that controls the voltage application device to apply the voltage to the membrane electrode assembly while sweeping the voltage over a plurality of consecutive voltage regions in such a manner that a first sweep rate of the voltage to be applied in the first voltage region in which a measured current value includes a peak caused due to carbon oxidation is set lower than that in the second voltage region that does not include the first voltage region.
    Type: Grant
    Filed: October 20, 2014
    Date of Patent: May 29, 2018
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Tohru Oda, Katsuhiko Kinoshita, Tatsuya Kawahara
  • Patent number: 9966611
    Abstract: A bipolar plate for fuel cells includes a flow plate having a first surface for the introduction of hydrogen fuel gas and water vapor and a second surface for the introduction of an oxygen containing gas, wherein at least a portion of the first and/or second surface comprises a nanostructured carbon material (NCM) coating deposited thereon, said coating having a thickness of 1 nm to 5 ?m.
    Type: Grant
    Filed: June 8, 2010
    Date of Patent: May 8, 2018
    Inventor: Ramesh Sivarajan
  • Patent number: 9954243
    Abstract: A fuel cell comprising at least two stacked fuel cell boards (22) which each comprise a membrane of substantially gas impervious electrolyte material and at least two electrode pairs wherein the anode and cathode of each said electrode pair are arranged on respective faces of said membrane. An electrode of each pair of electrodes is connected to an electrode of an adjacent pair of electrodes by a through-membrane connection (13) or by an external connection on a Printed Circuit Board, comprising an electrically conductive region of said electrolyte material. A method for forming the through-membrane electrical connections in the electrolyte membrane is also disclosed.
    Type: Grant
    Filed: February 29, 2012
    Date of Patent: April 24, 2018
    Assignees: Imperial Innovations Limited, UCL Business PLC
    Inventors: Daniel John Leslie Brett, Anthony Robert John Kucernak
  • Patent number: 9912002
    Abstract: The present invention relates to: an ion exchange membrane containing, in a channel, an inorganic particle, substituted with an organic compound including SO4? group; and a method for manufacturing the ion exchange membrane. The ion exchange membrane according to the present invention can provide excellent physical properties while also maintaining ion conductivity.
    Type: Grant
    Filed: October 28, 2014
    Date of Patent: March 6, 2018
    Assignee: Hyundai Electric & Energy Systems Co., Ltd.
    Inventor: Ji Hyun Kong
  • Patent number: 9911981
    Abstract: An air-cathode battery includes a porous cathode current collector with an air interface, an ionic liquid electrolyte disposed in pores of the porous cathode current collector; a metal anode, and a separator in contact with the ionic liquid electrolyte and coupled between the porous cathode current collector and the metal anode. The porous cathode current collector is an ionogel formed from a silica sol-gel or a carbonized resorcinol-formaldehyde aerogel and the pores are functionalized with a thiol group-containing species that is functionalized with one or more catalytic nanoparticles or the pores are electroplated with catalytic metal.
    Type: Grant
    Filed: April 10, 2015
    Date of Patent: March 6, 2018
    Assignee: National Technology & Engineering Solutions of Sandia, LLC
    Inventor: Marie C. Kane
  • Patent number: 9905858
    Abstract: An improved platinum and method for manufacturing the improved platinum wherein the platinum having a fractal surface coating of platinum, platinum gray, with a increase in surface area of at least 5 times when compared to shiny platinum of the same geometry and also having improved resistance to physical stress when compared to platinum black having the same surface area. The process of electroplating the surface coating of platinum gray comprising plating at a moderate rate, for example at a rate that is faster than the rate necessary to produce shiny platinum and that is less than the rate necessary to produce platinum black. Platinum gray is applied to manufacture a fuel cell and a catalyst.
    Type: Grant
    Filed: January 29, 2013
    Date of Patent: February 27, 2018
    Assignee: Second Sight Medical Products, Inc.
    Inventors: David Daomin Zhou, Robert J. Greenberg
  • Patent number: 9865883
    Abstract: Methods of preparing fuel cell electrodes having catalyst with high density catalyst support are provided. One method of fabricating a fuel cell electrode comprises adjusting an active catalyst particle loading to increase catalyst layer thickness to within a desired range.
    Type: Grant
    Filed: February 14, 2014
    Date of Patent: January 9, 2018
    Assignee: NISSAN NORTH AMERICA, INC.
    Inventors: Taehee Han, Ellazar Niangar
  • Patent number: 9859573
    Abstract: Disclosed is a membrane electrode assembly provided with a polymer electrolyte membrane; a catalyst layer (A) which is laminated onto one surface of the polymer electrolyte membrane; a gas diffusion layer (A) which is laminated onto the catalyst layer (A); a catalyst layer (B); and a gas diffusion layer (B). The outer circumferential section of the catalyst layer (A) is the membrane electrode assembly with an integrated frame which comprises a membrane electrode assembly that protrudes from the gas diffusion layer (A) and a frame adhered to the outer circumferential section of the catalyst layer (A), whereby said frame surrounds the edge of the membrane electrode assembly. The surface that is adhered to the frame in the outer circumferential section of the catalyst layer (A) comprises a plurality of cracks.
    Type: Grant
    Filed: March 4, 2011
    Date of Patent: January 2, 2018
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Takashi Morimoto, Yoichiro Tsuji, Masaki Yamauchi, Atushi Murata, Mitsuo Yoshimura
  • Patent number: 9853255
    Abstract: Embodiments of the disclosure relate to membrane electrode assemblies. The membrane electrode assembly may include at least one gas-diffusion layer having a first side and a second side, and particle cores adhered to at least one of the first and second sides of the at least one gas-diffusion layer. The particle cores includes surfaces adhered to the at least one of the first and second sides of the at least one gas-diffusion layer and surfaces not in contact with the at least one gas-diffusion layer. Furthermore, a thin layer of catalytically atoms may be adhered to the surfaces of the particle cores not in contact with the at least one gas-diffusion layer.
    Type: Grant
    Filed: June 20, 2017
    Date of Patent: December 26, 2017
    Assignee: Brookhaven Science Associates, LLC
    Inventors: Radoslav Adzic, Stoyan Bliznakov, Miomir Vukmirovic
  • Patent number: 9843063
    Abstract: A fuel cell includes: a membrane electrode assembly including an electrolyte membrane, catalyst layers stacked on both sides of the electrolyte membrane, and two or more porous bodies having different moduli of elasticity and provided on a surface of one of the catalyst layers; a separator defining a gas flow passage between the separator and the membrane electrode assembly; and a frame body surrounding an outer periphery of the electrolyte membrane. A porous body adjacent to the separator out of the two or more porous bodies includes an outer edge portion including an outer extending portion extending to overlap with the frame body. An elastic body is provided between the outer extending portion and the frame body.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: December 12, 2017
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Motoki Yaginuma, Toshikazu Kotaka
  • Patent number: 9809890
    Abstract: The present disclosure is directed towards flow structures in electrochemical cells for use in high differential pressure operations. The flow structure on the low pressure-side of the cell has a larger surface area than the flow structure on the high-pressure side of the cell at the flow structure—MEA interface. The boundary of the high pressure flow structure is entirely within the boundary of the low pressure flow structure. A seal around the high pressure flow structure is also contained within the boundary of the low pressure flow structure. In such an arrangement, high fluid pressures acting on the electrolyte membrane from the high-pressure side of the cell is fully and continuously balanced by the flow structure on the low pressure-side of the membrane. Use of the low pressure flow structure as a membrane support prevents the rupture or deformation of the membrane under high stresses.
    Type: Grant
    Filed: July 22, 2013
    Date of Patent: November 7, 2017
    Assignee: Nuvera Fuel Cells, LLC.
    Inventors: Scott Blanchet, Benjamin Lunt
  • Patent number: 9793567
    Abstract: An ion exchange membrane for a redox flow battery, the anion exchange membrane including a porous substrate; and a polymer disposed in the porous substrate, wherein the polymer is a polymerization product of a composition for forming the ion exchange membrane, wherein the composition includes a first monomer and a second monomer, wherein the first monomer is substituted with a group including an ethylenic unsaturated double bond and includes a cationic heterocyclic compound including a nitrogen heteroatom and a counter anion thereof, and wherein the second monomer is polymerizable with the first monomer and is at least one selected from a (meth)acrylamide compound and a (meth)acrylate compound.
    Type: Grant
    Filed: October 31, 2014
    Date of Patent: October 17, 2017
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Myungjin Lee, Moonsung Kang, Dooyeon Lee, Dohyeong Kim