With Diaphragm Patents (Class 204/282)
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Patent number: 11302950Abstract: Disclosed is a method of manufacturing an electrolyte membrane for fuel cells. The method includes preparing an electrolyte layer including one or more ion conductive polymers that form a proton movement channel, and permeating a gas from a first surface of the electrolyte layer to a second surface of the electrolyte layer.Type: GrantFiled: November 19, 2018Date of Patent: April 12, 2022Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Sukhwan Yun, Bo Ki Hong
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Patent number: 10992003Abstract: An electrochemical apparatus includes a catholyte, an anolyte, and a separator disposed between the catholyte and the anolyte. The catholyte includes metal salt dissolved in water, thereby providing at least one metal ion. The anolyte includes a polysulfide solution. The separator is permeable to the at least one metal ion. During a charging process of the electrochemical apparatus, oxygen is generated in the catholyte, the polysulfide in the polysulfide solution undergoes a reduction reaction in the anolyte, and the at least one metal ion moves from the catholyte to the anolyte. During a discharging process of the apparatus, the oxygen is consumed in the catholyte, the polysulfide oxidizes in the anolyte, and the at least one metal ion moves from the anolyte to the catholyte.Type: GrantFiled: April 19, 2018Date of Patent: April 27, 2021Assignee: Massachusetts Institute of TechnologyInventors: Liang Su, Zheng Li, Yet-Ming Chiang, Menghsuan Sam Pan
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Patent number: 10962499Abstract: A sensor for hydrogen in a fluid medium has a chamber for electrolyte with a window which is selectively permeable to hydrogen to allow hydrogen to pass from the fluid medium under test into the electrolyte in the chamber. A plurality of electrodes in contact with the ionic liquid electrolyte are used to observe hydrogen concentration by voltammetry. The electrolyte is an ionic liquid. Applications where such a sensor may be used include a wellbore tool for measuring the content of hydrogen in a subterranean fluid, monitoring of fiber-optic cables for damage by hydrogen, corrosion monitoring, and small-scale process plant where hydrogen is part of a gas stream.Type: GrantFiled: October 15, 2013Date of Patent: March 30, 2021Assignee: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Debbie S. Silvester, Nathan Scott Lawrence, Richard Compton, Timothy Jones, Li Jiang, Hanpu Liang
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Patent number: 10873097Abstract: An electrode for a fuel cell according to an embodiment of an embodiment includes: a catalyst layer having a noble metal catalyst unit that has a porous structure or a layer-by-layer structure including void layers and a hydrophilic material; a porous water management layer arranged adjacent to the catalyst layer and including a hydrophilic material and a conductive material; and a gas diffusion layer arranged adjacent to the porous water management layer, where a size of the noble metal catalyst unit is equal to or more than 0.05 ?m and equal to or less than 2 ?m, the porosity of the porous water management layer is equal to or more than 30 vol % and equal to or less than 85 vol %, and the hydrophilicity thereof is equal to or more than 0.05 and equal to or less than 1.Type: GrantFiled: February 24, 2016Date of Patent: December 22, 2020Assignee: Kabushiki Kaisha ToshibaInventors: Tianyi Yang, Wu Mei, Taishi Fukazawa
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Patent number: 10870875Abstract: The present invention relates to compositions comprising: a polypeptide, wherein at least a portion of the polypeptide has a coiled coil structure; and a chelate comprising a chelating agent and a metal ion; and wherein the chelate is bound to at least one amino acid of the polypeptide. In a preferred embodiment the polypeptide is a silk fibroin, wherein at least a portion of the silk fibroin has a coiled coil structure.Type: GrantFiled: November 16, 2015Date of Patent: December 22, 2020Assignee: Commonwealth Scientific and Industrial Research OrganisationInventors: Tara Sutherland, Trevor Rapson
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Patent number: 10865487Abstract: An electrochemical conversion method for converting at least a portion of a first mixture comprising hydrocarbon to C2+ unsaturates by repeatedly applying an electric potential difference, V(?1), to a first electrode of an electrochemical cell during a first time interval ?1; and reducing the electric potential difference, V(?1), to a second electric potential difference, V(?2), for a second time interval ?2, wherein ?2??1. The method is beneficial, among other things, for reducing coke formation in the electrochemical production of C2+ unsaturates in an electrochemical cell. Accordingly, a method of reducing coke formation in the electrochemical conversion of such mixtures and a method for electrochemically converting carbon to C2+ unsaturates as well as an apparatus for such methods are also provided.Type: GrantFiled: March 2, 2018Date of Patent: December 15, 2020Assignee: ExxonMobil Chemical Patents Inc.Inventors: Walter Weissman, Sumathy Raman, Mark A. Greaney
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Patent number: 10458027Abstract: Electrode-supported tubular solid-oxide electrochemical cells suitable for use in electrochemical chemical synthesis and processes for manufacturing such are provided.Type: GrantFiled: October 8, 2015Date of Patent: October 29, 2019Assignee: Low Emission Resources CorporationInventors: Fernando Alvarez, Lauren Beverly Sammes
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Patent number: 10367217Abstract: A method of making a component of a membrane electrode assembly comprising the steps of forming an electrode on an air-permeable backer comprising ePTFE, depositing a mixture comprising ionomer and a water-insoluble alcohol onto said electrode, drying said mixture to form a protective ionomer layer, and depositing an ePTFE-reinforced ionomer layer onto said protective ionomer layer.Type: GrantFiled: February 9, 2015Date of Patent: July 30, 2019Assignee: W. L. Gore & Associates, Inc.Inventors: Donald T. Freese, F. Colin Busby
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Patent number: 10309022Abstract: An element recovery method and an element recovery apparatus are provided by which an element containing a high-purity rare earth element can be recovered at low cost. The element recovery method includes the steps of: preparing molten salt containing a rare earth element; and controlling electric potentials in a pair of electrode members at prescribed values while keeping the pair of electrode members in contact with the molten salt, thereby depositing the rare earth element existing in the molten salt on one of the pair of electrode members. In this way, as compared with the conventional wet separation method, an element such as a rare earth element that is to be recovered can be directly recovered from the molten salt in which the element is dissolved, so that the steps of the recovery method can be simplified and reduced in cost.Type: GrantFiled: August 8, 2012Date of Patent: June 4, 2019Assignees: Sumitomo Electric Industries, Ltd., Kyoto UniversityInventors: Tomoyuki Awazu, Takayasu Sugihara, Masatoshi Majima, Toshiyuki Nohira, Rika Hagiwara, Seitaro Kobayashi
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Patent number: 10256491Abstract: The invention includes a catalysed membrane and membrane electrode assembly. The membrane and membrane electrode assembly comprise an ion-conducting membrane component comprising an ion-conducting membrane, an anode catalyst layer, and a cathode catalyst layer. The anode catalyst layer comprises a first electrocatalyst component comprising a first platinum-containing electrocatalyst and a first carbon support. The first carbon support supports the first platinum-containing electrocatalyst, and the electrochemical platinum surface area in the anode catalyst layer is 5-100 cm2Pt/cm2 of the geometric electrode area of the anode catalyst layer. The cathode catalyst layer comprises a second electrocatalyst component and a second oxygen evolution reaction electrocatalyst. The second electrocatalyst component comprises a second platinum-containing electrocatalyst and a second carbon support, wherein the second carbon support supports the second platinum-containing electrocatalyst component.Type: GrantFiled: May 20, 2015Date of Patent: April 9, 2019Assignee: Johnson Matthey Fuel Cells LimitedInventor: Rachel Louise O'Malley
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Patent number: 10222339Abstract: The present invention relates to an optical H+-sensor, comprising an H+-indicator material, wherein the H+-indicator material is present between a support material and a H+-permeable layered structure, the layered structure comprising an H+-permeable hydrophilic layer and an H+-permeable cation exchange layer. Further, the invention relates to a method for determining the H+-concentration, e.g. expressed as pH, in a product or sample thereof, the method comprising contacting the product or sample with an optical H+-sensor according to the invention, measuring an optical property of the indicator material, and determining the H+-concentration of the product or sample based on said optical property.Type: GrantFiled: March 28, 2012Date of Patent: March 5, 2019Assignee: NEDERLANDSE ORGANISATIE VOOR TOEGEPAST-NATUURWETENSCHAPPELIJK ONDERZOEK TNOInventors: Jacobus Johannes Frederik van Veen, Cornelis Gerardus Josephus Koopal
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Patent number: 9932679Abstract: An electrochemical conversion method for converting at least a portion of a first mixture comprising hydrocarbon to C2+ unsaturates by repeatedly applying an electric potential difference, V(?1), to a first electrode of an electrochemical cell during a first time interval ?1; and reducing the electric potential difference, V(?1), to a second electric potential difference, V(?2), for a second time interval ?2, wherein ?2??1. The method is beneficial, among other things, for reducing coke formation in the electrochemical production of C2+ unsaturates in an electrochemical cell. Accordingly, a method of reducing coke formation in the electrochemical conversion of such mixtures and a method for electrochemically converting carbon to C2+ unsaturates as well as an apparatus for such methods are also provided.Type: GrantFiled: October 17, 2014Date of Patent: April 3, 2018Assignee: ExxonMobil Chemical Patents Inc.Inventors: Walter Weissman, Sumathy Raman, Mark A. Greaney
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Patent number: 9510780Abstract: A system is disclosed that extracts bodily fluid to a reaction chamber for monitoring a substance or property of the patient fluid. In one embodiment, a pump is used to advance the sample of bodily fluid through a filter to produce a filtrate. Another pump advances filtrate into the reaction chamber, while another pump advances reactant into the reaction chamber. A sensor in communication with the reaction chamber determines a concentration of nitric oxide or one of its metabolic products. Methods are also disclosed.Type: GrantFiled: April 30, 2015Date of Patent: December 6, 2016Inventor: James H. Silver
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Patent number: 9316211Abstract: Provided are an actuator that is small, superior in terms of high-speed response, and capable of large displacement, and a manufacturing method that can easily manufacture the actuator. The actuator is configured by a laminated body including multiple electrodes, multiple cation-exchange resin films, and multiple anion-exchange resin films. The cation-exchange resin films and the anion-exchange resin films are stacked alternately, and each of the cation-exchange resin films and the anion-exchange resin films is sandwiched between two of the electrodes. A voltage is applied such that the electrodes between adjacent ones of the cation-exchange resin films and anion-exchange resin films have the same polarity.Type: GrantFiled: September 6, 2012Date of Patent: April 19, 2016Assignee: SEIKO EPSON CORPORATIONInventor: Hideki Tanaka
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Patent number: 9017529Abstract: An apparatus for the electrolytic splitting of water into hydrogen and oxygen gases is disclosed. The apparatus comprises: (i) a first hemi-enclosure; (ii) a second hemi-enclosure; (iii) a diaphragm electrode array positioned between the first hemi-enclosure and the second hemi-enclosure comprising: (a) a diaphragm, that passes ions and impedes the passage of gases, comprising a first side and a second opposed side; (b) a first plurality of electrodes in a first vicinity of the first side of the diaphragm; and (c) a second plurality of electrodes in a second vicinity of the second opposed side of the diaphragm; (iv) a fastener, for leak-tight fastening of the first hemi-enclosure, the diaphragm electrode array, and the second hemi-enclosure, whereby a leak-tight enclosure is formed; (v) contacts, for electrically powering the first and second pluralities of electrodes, and; (vi) pathways, configured to remove hydrogen and oxygen gases from the enclosure.Type: GrantFiled: October 14, 2014Date of Patent: April 28, 2015Assignee: GTA, Inc.Inventor: Elias Stanley Greenbaum
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Publication number: 20150111129Abstract: A proton conductor includes an electrolytic layer having first and second main surfaces; and a plurality of catalyst particles. The first main surface of the electrolytic layer includes a flat portion and a plurality of recessed portions. The plurality of catalyst particles are respectively located in the plurality of recessed portions. The flat portion of the first main surface and parts of surfaces of the plurality of catalyst particles exposed from the plurality of recessed portions form a third main surface. The electrolytic layer is formed of a single crystal of a perovskite-type oxide having a proton conductivity. The catalyst particles are formed of a single crystal of a noble metal material. The perovskite-type oxide of the electrolytic layer) has a crystal orientation that matches a crystal orientation of the noble metal material of the plurality of catalyst particles.Type: ApplicationFiled: December 24, 2014Publication date: April 23, 2015Inventors: Tomoyuki KOMORI, Yuji ZENITANI, Takashi NISHIHARA
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Patent number: 9011651Abstract: An apparatus for the electrolytic splitting of water into hydrogen and/or oxygen, the apparatus comprising: (i) at least one lithographically-patternable substrate having a surface; (ii) a plurality of microscaled catalytic electrodes embedded in said surface; (iii) at least one counter electrode in proximity to but not on said surface; (iv) means for collecting evolved hydrogen and/or oxygen gas; (v) electrical powering means for applying a voltage across said plurality of microscaled catalytic electrodes and said at least one counter electrode; and (vi) a container for holding an aqueous electrolyte and housing said plurality of microscaled catalytic electrodes and said at least one counter electrode. Electrolytic processes using the above electrolytic apparatus or functional mimics thereof are also described.Type: GrantFiled: December 9, 2010Date of Patent: April 21, 2015Assignee: UT-Battelle, LLCInventor: Elias Greenbaum
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Patent number: 8999119Abstract: The hydrogen production device of the present invention includes: a first electrode including a conductive substrate and a photocatalytic semiconductor layer; a second electrode that is electrically connected to the first electrode and disposed in a second region opposite to a first region relative to the first electrode; the first region is defined as a region on a side of a surface of the first electrode in which the photocatalytic semiconductor layer is provided; a water-containing electrolyte solution; and a housing containing these. The first electrode is provided with first through-holes and the second electrode is provided with second through-holes; and the first through-holes and second through-holes form a communicating hole for allowing the first region and the second region to communicate with each other. An ion exchange membrane having substantially the same shape as the communicating hole is disposed in the communicating hole to close the communicating hole.Type: GrantFiled: August 26, 2011Date of Patent: April 7, 2015Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Kenichi Tokuhiro, Takaiki Nomura, Kazuhito Hato, Noboru Taniguchi, Takahiro Suzuki, Satoru Tamura
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Patent number: 8968963Abstract: A curable composition comprising: (i) 2.5 to 50 wt % crosslinker comprising at least two acrylamide groups; (ii) 20 to 65 wt % curable ionic compound comprising an ethylenically unsaturated group and an anionic group; (iii) 15 to 45 wt % solvent; and (iv) 0 to 10 wt % of free radical initiator; wherein the molar ratio of (i):(ii) is 0.1 to 1.5. The compositions are useful for preparing ion exchange membranes.Type: GrantFiled: December 9, 2010Date of Patent: March 3, 2015Assignee: Fujifilm Manufacturing Europe BVInventors: Bastiaan Van Berchum, Jacko Hessing, Harro Antheunis
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Patent number: 8968964Abstract: A curable composition comprising: (i) 2.5 to 50 wt % crosslinker comprising at least two acrylamide groups; (ii) 12 to 65 wt % curable ionic compound comprising an ethylenically unsaturated group and a cationic group; (iii) 10 to 70 wt % solvent; (iv) 0 to 10 wt % of free radical initiator; and (v) lithium and/or calcium salt. The compositions are useful for preparing ion exchange membranes.Type: GrantFiled: December 9, 2010Date of Patent: March 3, 2015Assignee: Fujifilm Manufacturing Europe BVInventors: Harro Antheunis, Jacko Hessing, Bastiaan Van Berchum
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Patent number: 8956782Abstract: A curable composition comprising: (i) 2.5 to 50 wt % crosslinker comprising at least two acrylamide groups; (ii) 20 to 65 wt % curable ionic compound comprising an ethylenically unsaturated group and an anionic group; (iii) 15 to 45 wt % solvent; and (iv) 0 to 10 wt % of free radical initiator; wherein the composition has a pH of 0.8 to 12. The compositions are useful for preparing ion exchange membranes.Type: GrantFiled: December 9, 2010Date of Patent: February 17, 2015Assignee: Fujifilm Manufacturing Europe BVInventors: Bastiaan Van Berchum, Jacko Hessing, Harro Antheunis
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Patent number: 8956783Abstract: A curable composition comprising: (i) 2.5 to 50 wt % crosslinker comprising at least two acrylamide groups; (ii) 12 to 65 wt % curable ionic compound comprising an ethylenically unsaturated group and a cationic group; (iii) 15 to 70 wt % solvent; and (iv) 0 to 10 wt % of free radical initiator; and (v) 2 to 50 wt % of non-curable salt; wherein the composition has a pH of 1 to 12. The compositions are useful for preparing ion exchange membranes.Type: GrantFiled: December 9, 2010Date of Patent: February 17, 2015Assignee: Fujifilm Manufacturing Europe BVInventors: Harro Antheunis, Jacko Hessing, Bastiaan Van Berchum
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Publication number: 20140374248Abstract: A method for the dry production of a membrane-electrode unit includes assembling a layered configuration including a centrally positioned membrane produced by extrusion and pre-dried at a temperature between 80° C. and 100° C. for 15 min to 30 min, a substrate-electrode unit on each side of the membrane having an electrode layer applied to a substrate, an optional frame around each substrate-electrode unit for fixing the substrate-electrode unit, and two separating films on outer sides. The configuration is pressed together between two laminating rollers so that a pressure connection is produced at least between the membrane and the electrode layers. A short production time is achieved because it is not necessary to keep the membrane moist at high temperatures under pressure. A membrane electrode unit and a roller configuration are also provided.Type: ApplicationFiled: August 16, 2012Publication date: December 25, 2014Applicant: SIEMENS AKTIENGESELLSCHAFTInventors: Armin Datz, Klaus Dennerlein, Carola Kuehn, Andreas Reiner, Werner Straub
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Publication number: 20140356755Abstract: A method of forming a catalyst ink is disclosed. The method can include: polymerising an ionic monomer and at least one non-ionic monomer to form a hydrophilic polymer; dissolving the hydrophilic polymer in a suitable solvent to form a polymer solution; and mixing a catalyst with the polymer solution to make a catalyst ink. Also disclosed are catalyst inks formed from this method, as well as membranes including the catalyst inks and methods for forming the same.Type: ApplicationFiled: May 30, 2014Publication date: December 4, 2014Applicant: ITM Power (Research) LimitedInventors: Nick Van Dijk, Kevin Yeomans
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Patent number: 8888968Abstract: An apparatus for the electrolytic splitting of water into hydrogen and oxygen gases is disclosed. The apparatus comprises: (i) a first hemi-enclosure; (ii) a second hemi-enclosure; (iii) a diaphragm electrode array positioned between the first hemi-enclosure and the second hemi-enclosure comprising: (a) a diaphragm, that passes ions and impedes the passage of gases, comprising a first side and a second opposed side; (b) a first plurality of electrodes in a first vicinity of the first side of the diaphragm; and (c) a second plurality of electrodes in a second vicinity of the second opposed side of the diaphragm; (iv) a fastener, for leak-tight fastening of the first hemi-enclosure, the diaphragm electrode array, and the second hemi-enclosure, whereby a leak-tight enclosure is formed; (v) contacts, for electrically powering the first and second pluralities of electrodes, and; (vi) pathways, configured to remove hydrogen and oxygen gases from the enclosure.Type: GrantFiled: February 12, 2014Date of Patent: November 18, 2014Assignee: GTA, Inc.Inventor: Elias Stanley Greenbaum
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Publication number: 20140318978Abstract: A photoactive article includes a substrate including a semiconductor to absorb light and to produce a plurality of charge carriers; a dielectric layer disposed on the substrate; a conductive member disposed on the dielectric layer and opposing the substrate such that the dielectric layer is exposed by the conductive member, the conductive member to receive a portion of the plurality of charge carriers from the substrate; and an electrolyte disposed on the dielectric layer and the conductive member. Making a photoactive article includes forming a dielectric layer on a substrate by rapid thermal oxidation, the dielectric layer comprising an oxide of a semiconductor; and forming a conductive member disposed on the dielectric layer.Type: ApplicationFiled: May 5, 2014Publication date: October 30, 2014Applicant: NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGYInventors: DANIEL V. ESPOSITO, THOMAS P. MOFFAT, ALBERT ALEC TALIN
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Publication number: 20140284219Abstract: A room temperature method and electrode for producing sodium metal in situ is disclosed. The electrode has a sodium hydroxide, or another easily electrolyzible sodium containing material, solution on the anode side, a membrane which permits sodium ions to pass through to the cathode where the sodium ions are reduced to sodium metal. This sodium metal is then available to react with other components of the solution on the cathode side.Type: ApplicationFiled: March 18, 2014Publication date: September 25, 2014Inventor: Dru L. DeLaet
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Patent number: 8778149Abstract: The invention relates to a synthetic diaphragm for chlor-alkali cells with improved energy consumption and gas separation characteristics. The diaphragm comprises a network of polymer fibers bound to a hydrophilic ceramic material containing zirconium chemically bound to hydroxyl groups. The ceramic material is obtained starting from ZrO2 by a process of hydration under vacuum which can be carried out directly in the cell by means of suitable equipment.Type: GrantFiled: August 10, 2012Date of Patent: July 15, 2014Assignee: Industrie de Nora S.p.A.Inventor: Giovanni Meneghini
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Publication number: 20140171774Abstract: Provided is a biological membrane including at least one ring-like polypeptide, where the at least one of the ring-like polypeptide is not a membrane protein, a surface being associated with at least one ring-like polypeptide capable of integration into a cell membrane, an electrode including said surface and electronically and biomedical devices including the electrodes for recording and stimulating cell activity.Type: ApplicationFiled: May 24, 2012Publication date: June 19, 2014Applicant: Yissum Research Development Company of the Hebrew University of Jerusalem Ltd.Inventors: Micha Spira, Oded Shoseyov
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Publication number: 20140158527Abstract: The present invention relates to a method for manufacturing an electrode module for recovery of metal ions, an electrode module for recovery of metal ions, and an apparatus for recovery of metal ions including the same. the present invention provides a method for manufacturing an electrode module for recovery of metal ions, the method including the steps of: a) preparing a first electrode part and a second electrode part for electrically adsorbing or desorbing metal ions contained in a liquid; and b) interposing an insulating layer, through which the liquid passes, between the first electrode part and the second electrode part, an electrode module for recovery of metal ions manufactured by the method, and an apparatus for recovery of metal ions including the same.Type: ApplicationFiled: April 13, 2012Publication date: June 12, 2014Inventors: Kang-Sup Chung, Tae Gong Ryu, Jae Chun Ryu
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Patent number: 8722146Abstract: A method for making a liquid separation membrane, including: (1) providing a polyvinylidene fluoride liquid separation membrane or polypropylene liquid separation membrane prepared by a thermally induced phase separation method as a substrate membrane, soaking the substrate membrane with water or a weak polar organic liquid to make membrane pores of the substrate membrane filled with the liquid, the soaking time being between 0.5 s and 1 min, and the weak polar organic liquid being indissolvable and compatible with the polyvinylidene fluoride liquid separation membrane or polypropylene liquid separation membrane; (2) coating a casting solution of polyvinylidene fluoride on the surface of the soaked substrate membrane obtained in step (1), and quickly soaking the substrate membrane in a coagulating bath heated to a temperature of 60-100° C. for curing to yield the liquid separation membrane.Type: GrantFiled: July 2, 2012Date of Patent: May 13, 2014Assignee: Tianjin Motimo Membrane Technology Co., Ltd.Inventors: Jianli Liu, Changfa Xiao, Xiaoyu Hu, Wujiang Zhang, Ruobing Hou
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Publication number: 20140116877Abstract: A membrane-electrode assembly for an electrolysis device includes a proton-exchange membrane, an anode and a cathode disposed on either side of the proton-exchange membrane, a first conductive catalyst disposed within the proton-exchange membrane, and a first conductive junction linking the first conductive catalyst and the cathode. The first conductive junction has an electrical resistance greater than a proton resistance of the membrane between the first conductive catalyst and the cathode.Type: ApplicationFiled: June 12, 2012Publication date: May 1, 2014Inventors: Nicolas Guillet, Eric Mayousse
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Patent number: 8702935Abstract: An electrochemical gas sensor includes a housing, a first working electrode within the housing and having a first section of gas transfer medium and a first layer of catalyst on the first section of gas transfer medium, and at least a second working electrode within the housing and having a second section of gas transfer medium and a second layer of catalyst on the second section of gas transfer medium. At least one of the first section of gas transfer medium and the second section of gas transfer medium includes at least one area in which the structure thereof has been irreversibly altered to limit diffusion of gas through the at least one of the first section of gas transfer medium or the second section of gas transfer medium toward the other of the at least one of the first section of gas transfer medium and the second section of gas transfer medium.Type: GrantFiled: October 28, 2010Date of Patent: April 22, 2014Assignee: Mine Safety Appliances CompanyInventors: Brian Keith Davis, Towner Bennett Scheffler, Michael Alvin Brown
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Patent number: 8702915Abstract: Small, autonomous, low cost electrochemical gas generators containing an electrochemical cell assembly, a commercially available battery and a current controlling mechanism. Current control, which defines the gas generation rate, is achieved either electronically by means of a resistor or through mass transfer control by means of a gas permeable film of known permeability. In either case, the gas generation rates are generally from 0.1 to 10 cc/day. The gas source must contain an electrochemically active gas such as oxygen or hydrogen. Air is the preferred source for oxygen. These miniature gas generators, generally are less than 1.5 cm in diameter and length, require novel, compact, electrochemical cell assemblies. Various cell assemblies, generally 1 cm in diameter and less than 0.5 mm thick, are described. These miniature gas generators are used for the controlled release of fluids such as pheromones, fragrances, insect repellents, and the like.Type: GrantFiled: March 28, 2009Date of Patent: April 22, 2014Assignee: M & R Consulting Services, Inc.Inventor: Henri Maget
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Patent number: 8685594Abstract: A cathode catalyst for a fuel cell includes a carrier, and an active material including M selected from the group consisting of Ru, Pt, Rh, and combinations thereof, and Ch selected from the group consisting of S, Se, Te, and combinations thereof, with the proviso that the active material is not RuSe when the carrier is C.Type: GrantFiled: August 31, 2006Date of Patent: April 1, 2014Assignee: Samsung SDI Co., Ltd.Inventors: Alexey AlexandrovichSerov, Chan Kwak, Myoung-Ki Min, Si-Hyun Lee
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Publication number: 20140076734Abstract: An efficient and low environmental impact method is disclosed for the recovery of lithium from aqueous solution, for example, brines from high altitude salt lakes. The method comprises the use of an electrochemical reactor with electrodes which are highly selective for lithium, where lithium ions are inserted in the crystal structure of manganese oxide in the cathode, and extracted from the crystal structure of manganese oxide in the anode. Also disclosed are three-dimensional carbon electrodes embedded in manganese oxides formed by impregnating a porous support, for example a carbon felt, with a manganese oxide/carbon black slurry.Type: ApplicationFiled: March 15, 2013Publication date: March 20, 2014Inventors: Ernesto Julio CALVO, Florencia MARCHINI
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Publication number: 20140069808Abstract: A structural plate with external reinforcing means is provided for an electrolyser module. The structural plate defines at least one degassing chamber and a half cell chamber opening. The external reinforcing means contact the structural plate for mitigating outward displacement of the structural plate in response to fluid pressure within the structural plate. The structural plate and the external reinforcing means define interlocking features for achieving contact and corresponding mechanical reinforcement.Type: ApplicationFiled: February 1, 2013Publication date: March 13, 2014Applicant: NEXT HYDROGEN CORPORATIONInventors: Chris WILSON, Michael STEMP, James HINATSU
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Publication number: 20140069807Abstract: A structural plate is provided for an electrolyser module. The structural plate defines at least one degassing chamber and a half cell chamber opening. The structural plate is reinforced with at least one internal reinforcing means mounted to the structural plate for mitigating outward displacement of the structural plate in response to fluid pressure within the structural plate. The structural plate defines holding features for locating and holding the internal reinforcing means.Type: ApplicationFiled: February 1, 2013Publication date: March 13, 2014Applicant: NEXT HYDROGEN CORPORATIONInventors: Chris WILSON, Michael STEMP, James HINATSU
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Publication number: 20130264215Abstract: The present invention relates to an anode system for conventional electrolysis cells, a process for the production thereof and its use for the deposition of electrolytic coatings. The anode system is characterized in that the anode (2) is in direct contact with a membrane (3) which completely separates the anode space from the cathode space. This anode system is therefore a direct-contact membrane anode.Type: ApplicationFiled: December 8, 2011Publication date: October 10, 2013Applicant: UMICORE GALVANOTECHNIK GMBHInventors: Bernd Weyhmueller, Franz Kohl, Uwe Manz, Klaus Bronder, Frank Oberst, Mario Tomazzoni
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Publication number: 20130256124Abstract: The electrocatalyst for the electrochemical conversion of carbon dioxide includes a copper material supported on titania nanotubes. The copper material may be pure copper, copper and ruthenium, or copper and iron supported on the titania nanotubes. The electrocatalyst is prepared by first dissolving copper nitrate trihydrate in deionized water to form a salt solution. Titania nanotubes are then added to the salt solution to form a suspension, which is then heated. A urea solution is added to the suspension to form the electrocatalyst in solution. The electrocatalyst is then removed from the solution. In addition to dissolving the copper nitrate trihydrate in the volume of deionized water, either iron nitrate to monohydrate or ruthenium chloride may also be dissolved in the deionized water to form the salt solution.Type: ApplicationFiled: April 2, 2012Publication date: October 3, 2013Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALSInventors: SALEEM UR RAHMAN, SYED MOHAMMED JAVAID ZAIDI, SHAKEEL AHMED, SK SAFDAR HOSSAIN
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Publication number: 20130256123Abstract: An electrocatalyst for the electrochemical conversion of carbon dioxide to hydrocarbons is provided. The electrocatalyst for the electrochemical conversion of carbon dioxide includes copper material supported on carbon nanotubes. The copper material may be pure copper, copper and ruthenium, copper and iron, or copper and palladium supported on the carbon nanotubes. The electrocatalyst is prepared by dissolving copper nitrate trihydrate in deionized water to form a salt solution. Carbon nanotubes are then added to the salt solution to form a suspension, which is then heated. A urea solution is added to the suspension to form the electrocatalyst in solution. The electrocatalyst is then removed from the solution. In addition to dissolving the copper nitrate trihydrate in the deionized water, either iron nitrate monohydrate, ruthenium chloride or palladium chloride may also be dissolved in the deionized water to form the salt solution.Type: ApplicationFiled: April 2, 2012Publication date: October 3, 2013Applicants: KING ABDULAZIZ CITY FOR SCIENCE AND TECHNOLOGY, KING FAHD UNIVERSITY OF PETROLEUM AND MINERALSInventors: SALEEM UR RAHMAN, SYED MOHAMMED JAVAID ZAIDI, SHAKEEL AHMED, SK SAFDAR HOSSAIN
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Publication number: 20130236797Abstract: An oxygen-consuming electrode, in particular for use in chloralkali electrolysis, having a novel catalyst coating and also an electrolysis apparatus are described. Furthermore, its use in chloralkali electrolysis, fuel cell technology or metal/air batteries is described. The oxygen-consuming electrode comprises at least a support which in particular is electrically conductive, a layer containing a catalyst and a hydrophobic layer, characterized in that it contains gallium in addition to silver as catalytically active component.Type: ApplicationFiled: August 23, 2011Publication date: September 12, 2013Applicant: BAYER INTELLECTUAL PROPERTY GMBHInventors: Andreas Bulan, Norbert Wagner, Gregor Polcyn, Lisa Rossrucker, Michael Marx
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Publication number: 20130224612Abstract: Provided are a gas decomposition component, a power generation apparatus including the gas decomposition component, and a method for decomposing a gas. A gas decomposition component includes a cylindrical MEA including a first electrode layer, a cylindrical solid electrolyte layer, and a second electrode layer in order from an inside toward an outside, in a layered structure; a first gas channel through which a first gas that is decomposed flows, the first gas channel being disposed inside the cylindrical MEA; and a second gas channel through which a second gas flows, the second gas channel being disposed outside the cylindrical MEA, wherein the gas decomposition component further includes a heater for heating the entirety of the component; and a preheating pipe through which the first gas to be introduced into the first gas channel passes beforehand to be preheated.Type: ApplicationFiled: October 21, 2011Publication date: August 29, 2013Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Chihiro Hiraiwa, Masatoshi Majima, Tetsuya Kuwabara, Tomoyuki Awazu, Naho Mizuhara, Toshio Ueda, Hideyuki Doi, Toshiyuki Kuramoto
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Patent number: 8480917Abstract: A solid electrolyte polymer including a cross-linked polyvinylidene fluoride (PVDF)-based polymer, and a polymer actuator including the cross-linked PVDF-based polymer and an electrolytic material.Type: GrantFiled: December 8, 2009Date of Patent: July 9, 2013Assignees: Samsung Electronics Co., Ltd., Sungkyunkwan University Foundation for Corporate CollaborationInventors: Jong-oh Kwon, Seung-tae Choi, Young-kwan Lee, Ja-Choon Koo, Su-jin Park
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Publication number: 20130105308Abstract: A reference electrode includes a reference electrolyte and a proton exchange membrane arranged to separate the reference electrolyte from a medium external to the electrode. The proton-exchange membrane comprises acid-doped polyaniline. The acid-doped polyaniline is in the form of particles distributed in a bonding polymer material.Type: ApplicationFiled: July 12, 2011Publication date: May 2, 2013Inventors: Angel Zhivkov Kirchev, Bernard Diem, Florence Mattera
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Publication number: 20130087451Abstract: There is provided a membrane electrode assembly and an organic hydride manufacturing device capable of obtaining higher energy efficiency even if manufacturing organic hydride in one step with a single device. A membrane electrode assembly in which a cathode catalyst layer and an anode catalyst layer are placed to sandwich a solid polymer electrolyte membrane, wherein the cathode catalyst layer includes catalytic metal which causes hydrogenation of unsaturated hydrocarbons to organic hydrides, and a carrier of the catalytic metal, and the carrier provides on its surface a functional group which decreases wettability of the unsaturated hydrocarbons.Type: ApplicationFiled: October 4, 2012Publication date: April 11, 2013Applicant: Hitachi, Ltd.Inventor: Hitachi, Ltd.
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Publication number: 20130087462Abstract: The invention relates to a spacer textile (1) including a top textile (2), a bottom textile (3) and a spacer layer (5), wherein the top textile (2) and the bottom textile (3) are connected together by the spacer layer (5). The top textile (2), the bottom textile (3) and the spacer layer (5) are monofilament fibers from inert fluorocarbons. The invention relates additionally to the use of the spacer textile (1) according to the invention as at least in part sheathing of an electrode (13, 14) in an electroplating bath (11), as a lining of operating, bearing and/or transport surfaces (31), or as filter or support material in chemically aggressive media.Type: ApplicationFiled: September 5, 2012Publication date: April 11, 2013Inventors: Hendrik Rabe, Richard Zimmermann, Martin Olesch, Joerg Zschetzsche, Katerina Machova
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Publication number: 20130052563Abstract: A reinforced membrane comprises: (I) a planar reinforcing component made from metal, carbon, polymer or a composite thereof, and (ii) an ion-conducting material, wherein the planar reinforcing component is a cellular structure, comprising a plurality of discrete cells, wherein the wall of each cell extends through the thickness of the component such that the cell wall is impermeable to the proton-conducting material and wherein the proton-conducting material fills the cells of the planar reinforcing component. Such a membrane is of use in a fuel cell or an electrolyser.Type: ApplicationFiled: February 23, 2011Publication date: February 28, 2013Applicant: JOHNSON MATTHEY PUBLIC LIMITED COMPANYInventors: Jonathan David Brereton Sharman, Michael Ian Petch
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Patent number: 8377283Abstract: An apparatus (12) for applying a zinc or zinc-alloy electroplate to a workpiece comprises an electroplating bath (16) having a pH more than about 14. The electroplating bath includes zinc ions and an additive. A cathode workpiece (18) is in the bath. An anode assembly (20) contacts the bath. The anode assembly includes an anolyte and an insoluble metal anode in the anolyte. The additive is capable of electrolytically breaking down upon contact with the anode. The anode assembly inhibits the electrolytic breakdown of the additive.Type: GrantFiled: June 3, 2003Date of Patent: February 19, 2013Assignee: Coventya, Inc.Inventors: William E. Eckles, Robert E. Frischauf, Frederic Raulin, Lionel Thiery, Jean-Jacques Duprat
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Patent number: 8349152Abstract: The invention relates to a structure of a cathodic finger for diaphragm electrolysis cells consisting of an external mesh and an internal reinforcing and current-distributing structure provided with protrusions suitable for maximizing the contact points with the external mesh.Type: GrantFiled: November 9, 2007Date of Patent: January 8, 2013Assignee: Industrie de Nora S.p.A.Inventor: Salvatore Peragine