Entries |
Document | Title | Date |
20100136458 | FUEL FOR FUEL CELL, FUEL CARTRIDGE FOR FUEL CELL AND FUEL CELL - Disclosed is a fuel for fuel cells which contains at least one organic compound selected from the group consisting of methanol, ethanol, dimethyl ether and formic acid, and 1-200 ppm of a hydrocarbon compound in terms of a single component as determined by gas chromatography mass spectrometry. Also disclosed are a fuel cartridge for fuel cells and a fuel cell. | 06-03-2010 |
20100136459 | ELECTROLYTE CONTAINING OXOCARBON MOLECULE AND USE THEREOF - The present invention provides, as an electrolyte which is useful as a material for a proton conductive membrane in a solid polymer fuel cell utilizing a gas fuel such as hydrogen gas or a liquid fuel such as methanol or dimethyl ether and which has higher proton conductivity than the conventional electrolytes do, an electrolyte characterized by containing an oxocarbon molecule, wherein the oxocarbon molecule has a difference in heat of formation ΔE defined as: | 06-03-2010 |
20100151351 | MONOMERS AND POLYMERS CARRYING IMIDAZOLE AND BENZIMIDAZOLE GROUPINGS, AND PROTON EXCHANGE MEMBRANE CONTAINING THE SAME FOR THE PRODUCTION OF A FUEL CELL - The invention relates to a monomer ( | 06-17-2010 |
20100159353 | POLYMER ELECTROLYTE, POLYMER ELECTROLYTE MEMBRANE, MEMBRANE-ELECTRODE ASSEMBLY AND POLYMER ELECTROLYTE FUEL CELL - Disclosed are: a polymer electrolyte which comprises, as the main component, a block/graft copolymer comprising, as constituent components, polymer blocks (A), (B) and (C) which cause phase-separation from one another, wherein the polymer block (A) comprises a vinyl compound unit as the main repeating unit and has an ion-conductive group, the polymer block (B) comprises a vinyl compound unit capable of forming a flexible phase as the main repeating unit and forms a flexible phase, and the polymer block (C) comprises a styrene derivative unit carrying an alicyclic hydrocarbon group having a polycyclic structure as the main repeating unit and forms a restrained phase; a membrane; a membrane-electrode assembly; and a solid polymer fuel cell. The polymer electrolyte has excellent durability and heat resistance, and shows little change in properties, such as the change in dimension between a dried state and a wet state, the change in mechanical properties and the change in methanol cross-over before and after the immersion in a methanol solution. The polymer electrolyte can be used stably in a solid polymer fuel cell during the long-term operation of the solid polymer fuel cell and enables excellent start-up performance of the solid polymer fuel cell. | 06-24-2010 |
20100159354 | CONDUCTIVE POLYMER, CONDUCTIVE POLYMER COMPOSITIONS AND METHODS FOR THEIR USE - The invention provides an electrolyte comprising an ester-cured alkaline phenolic resole resin containing conducting alkaline salts and methods for the use of the resin. | 06-24-2010 |
20100167165 | COPOLYMER, POLYMER ELECTROLYTE, AND USE THEREOF - The present invention is a copolymer obtained by condensation, a condensation reaction of a leaving group and a nucleophilic group, of a mixture of the following (A) and (C) with a mixture of (B) and (D), or of a mixture of (A), (B), (C) and (D):
| 07-01-2010 |
20100167166 | HYPER-BRANCHED POLYMER, ELECTRODE INCLUDING THE POLYMER, ELECTROLYTE MEMBRANE INCLUDING THE POLYMER, AND FUEL CELL INCLUDING THE ELECTRODE AND/OR THE ELECTROLYTE MEMBRANE - A hyper-branched polymer that has a dendritic unit, a linear unit, a terminal unit, and a degree of branching of about 0.05 to about 1. The hyper-branched polymer can be included in an electrode and/or an electrolyte membrane of a fuel cell. | 07-01-2010 |
20100173223 | Graft Copolymer and Process for Producing the Same - A graft copolymer having a side chain graft-polymerized by atom transfer living radical polymerization (ATRP) on a main chain polymerized by organotellurium-mediated living radical polymerization (TERP), wherein the molecular weight distribution is such that Mw/Mn is 1.5 or less. The graft copolymer is also such that a main chain moiety mainly consisting of the main chain and a side chain moiety mainly consisting of the side chain have microphase-separated structures. The graft copolymer has a narrow molecular weight distribution and forms microphase-separated structures through self organization of hydrophobic and hydrophilic moieties. | 07-08-2010 |
20100190089 | FUEL CELL - The present invention intends to provide a fuel cell being capable of preventing the methanol crossover in a simple and easy manner and being excellent in fuel utilization rate and the like. A fuel cell | 07-29-2010 |
20100203422 | PROTON SELECTIVE MEMBRANE FOR SOLID POLYMER FUEL CELLS - A proton selective membrane for solid polymer electrolyte fuel cells that is produced by providing one or more template molecules, providing one or more functional monomers to interact with the template molecules, providing a cross-linking agent(s) to covalently bond polymer chains created with the template molecules and functional monomers by polymerization, providing an initiating agent to start a chemical reaction which results in an imprinted polymer, and removing the template molecules from the imprinted polymer to create a proton selective membrane. | 08-12-2010 |
20100233577 | Nano-material catalyst device - A catalyst member comprising a blended mixture of nano-scale metal particles compressed with larger metal particles and sintered to form a structurally stable member of any desired shape. The catalyst member can be used in one of many different applications; for example, as an electrode in a fuel cell or in an electrolysis device to generate hydrogen and oxygen. | 09-16-2010 |
20100233578 | Process for the Electrochemical Catalysts of Fuel Cells Based on Polymer Electrolytes - The present invention relates to a process for the preparation of electrochemical catalysts of the polymer electrolytes-based fuel cells. With the process of the present invention, high catalyst activity while uniformly supporting a large amount of metal particles on a surface of a support can be achieved. Also, the present invention provides a process for the preparation of electrochemical catalysts of the polymer electrolytes-based fuel cells capable of using a small amount of toxic solvent without an additional high-temperature hydrogen annealing. | 09-16-2010 |
20100248077 | CATALYST INK, METHOD FOR PREPARING THE SAME, METHOD FOR STORING THE SAME, AND FUEL CELL - A catalyst ink for preparing a catalyst layer of a solid polymer electrolyte fuel cell, wherein the ratio of the sum of the weights of an organic aldehyde and an organic carboxylic acid relative to the total weight of the catalyst ink is 0.20% by weight or less. | 09-30-2010 |
20100279200 | Polymer electrolyte membrane and fuel cell comprising same - The present invention relates to an electrolyte membrane comprising an aluminum-based compound for a high-temperature fuel cell, and a polymer electrolyte membrane fuel cell comprising the electrolyte membrane. In particular, the present invention relates to an electrolyte membrane for a high-temperature fuel cell where an aluminum-based compound is added as an anionic-binding substance in the conventional electrolyte for a fuel cell, thereby improving electrochemical stability of a fuel cell and increasing cation yield of proton by preventing the elution of anions caused by water generation on electrodes, and a high-performance polymer electrolyte membrane fuel cell comprising the electrolyte membrane. | 11-04-2010 |
20100279201 | PROTON EXCHANGE MEMBRANE AND CELL COMPRISING SUCH A MEMBRANE - A cell of a fuel cell comprises an anode, a cathode, and between the cathode and the anode, a layer of ceramic including activated boron nitride. | 11-04-2010 |
20100297528 | ALKYLATED BISPHENOL-BASED COMPOUND AND PREPARATION, SULFONATED POLYARYLENE SULFONE POLYMER PREPARED FROM THE COMPOUND, AND FUEL CELL USING THE POLYMER - An alkylated bisphenol-based compound, a method of preparing the same, sulfonated polyarylene sulfone polymer prepared from the alkylated bisphenol-based compound, a method of preparing the polymer, and a fuel cell using the sulfonated polyarylene sulfone polymer. | 11-25-2010 |
20100297529 | Process for producing hybrid ion-exchange membranes comprising functional inorganics and graft polymer and electrolyte membranes for use in fuel cells comprising the hybrid ion-exchange membranes - Polymer ion-exchange membranes having outstanding electrical conductivity, water retention and oxidation resistance are produced by the steps of uniformly mixing an organic high-molecular weight resin with functional inorganics having the abilities to promote graft polymerization of polymerizable monomers, adsorb water and conduct protons, irradiating the resulting functional inorganics/polymer membrane to initiate graft polymerization or graft copolymerization of polymerizable monomers having functional groups, and then introducing sulfonic acid groups into the graft chains. | 11-25-2010 |
20100297530 | SEPARATION MEMBRANE FOR FUEL CELL AND PRODUCTION METHOD THEREOF - Disclosed is a process for producing a diaphragm for a fuel cell comprising a modified anion exchange membrane that substantially maintains durability and hydroxide ion conductivity as an electrolyte membrane and has improved resistance to methanol permeation. The process is characterized by comprising the step of impregnating at least one side of a crosslinked hydrocarbon anion exchange membrane with a polymerizable acidic compound having a weight average molecular weight of not less than 700 and less than 8000, provided that, when the acid site in the compound has been neutralized with a counter cation, the weight of the counter cation is subtracted from the molecular weight, and polymerizing the polymerizable acidic compound. | 11-25-2010 |
20100316931 | Electrocatalyst, Fuel Cell Cathode and Fuel Cell - The present invention is related to fuel cells and fuel cell cathodes, especially for fuel cells using hydrogen peroxide, oxygen or air as oxidant. A supported electrocatalyst ( | 12-16-2010 |
20100316932 | FUEL CELL MEMBRANE ELECTRODE ASSEMBLY - 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. | 12-16-2010 |
20100330455 | ADVANCED SOLID ACID ELECTROLYTE COMPOSITES - Solid acid/surface-hydrogen-containing secondary component electrolyte composites, methods of synthesizing such materials, electrochemical device incorporating such materials, and uses of such materials in fuel cells, membrane reactors and hydrogen separations are provided. The stable electrolyte composite material comprises a solid acid component capable of undergoing rotational disorder of oxyanion groups and capable of extended operation at a wide temperature range and a secondary compound with surface hydrogen atoms, which when intimately mixed, results in a composite material with improved conductivity, mechanical and thermal properties, when compared to pure solid acid compound. | 12-30-2010 |
20110003234 | Polymer Composition, Polymer Membrane Comprising the Polymer Composition, Process for Preparing it and Fuel Cell Comprising the Membrane - A polymer composition comprising (a) a polybenzimidazole derived from (a1) at least one bis-(ortho-diamino) aromatic compound and (a2) at least one aromatic carboxylic acid or derivative thereof, each containing at least two acid groups and at least one hydroxyl group in α-position of a carboxylic group; (b) orthophosphoric acid; and (c) polyphosphoric acids of the formula (I): HO[P(O)(OH)] | 01-06-2011 |
20110008710 | MATERIAL FOR CATALYST LAYER FOR POLYMER ELECTROLYTE FUEL CELL - To improve the utilization efficiency of a noble metal catalyst in a catalyst layer of an electrode for a polymer electrolyte fuel cell. | 01-13-2011 |
20110008711 | POLYMER ELECTROLYTE MEMBRANE - A polymer electrolyte membrane, wherein the period length L in the membrane surface direction, which period length is defined by formula (1) and is measured by using a small-angle X-ray diffractometer, is in the range from 52.0 nm to 64.9 nm: | 01-13-2011 |
20110014544 | PROTON EXCHANGE POLYMER MEMBRANE USING SURFACE TREATMENT TECHNIQUE BASED ON DIRECT FLUORINATION, MEMBRANE-ELECTRODE ASSEMBLY, AND FUEL CELL COMPRISING THE SAME - A proton exchange polymer membrane whose surface is treated by direct fluorination using a fluorine gas, a membrane-electrode assembly, and a fuel cell comprising the same are provided. The proton exchange polymer membrane of the present invention exhibits improved proton conductivity, high dimensional stability, and decreased methanol permeability through introducing hydrophobic fluorine having high electronegativity to the surface of the polymer membrane. Therefore, the proton exchange polymer membrane with excellent electrochemical properties of the present invention can be preferably utilized as polymer electrolyte membrane for fuel cell, generating electric energy from chemical energy of fuels. | 01-20-2011 |
20110014545 | PROTON-CONDUCTING MEMBRANE AND ITS USE - The present invention relates to novel polyazoles, a proton-conducting polymer membrane based on these polyazoles and its use as polymer electrolyte membrane (PEM) for producing membrane-electrode units for PEM-fuel cells, and also other shaped bodies comprising such polyazoles. | 01-20-2011 |
20110027691 | Polymer Membranes - The invention relates to novel organic/inorganic hybrid membranes which have the following composition: a polymer acid containing —SO | 02-03-2011 |
20110033776 | PROTON EXCHANGE MEMBRANES - The present invention is directed to proton exchange membranes such as for use in fuel cells. In one embodiment, a polyetherquinoxaline is obtained by reaction between a haloquinoxaline and at least one diol, which forms a repeating unit including an ether linkage. The polyetherquinoxaline is suitable for use in a proton exchange membrane, which can be used in a fuel cell. | 02-10-2011 |
20110033777 | PROTON-CONDUCTING MEMBRANE AND USE THEREOF - The present invention relates to a novel proton-conducting polymer membrane based on polyazole block polymers which, owing to their outstanding chemical and thermal properties, can be used widely and are suitable in particular as polymer electrolyte membrane (PEM) for producing membrane electrode units or so-called PEM fuel cells. | 02-10-2011 |
20110045383 | FUEL CELL - The present invention relates to a fuel cell exhibiting a high performance regardless of the humidification conditions. In short, it is a fuel cell comprised of a proton-conducting electrolyte membrane sandwiched between a pair of catalyst layers, wherein a catalyst layer of at least a cathode contains a catalyst ingredient, electrolyte material, and carbon material; the carbon material is comprised of three types of materials of a catalyst-supporting carbon material supporting the catalyst ingredient, a conductivity-aiding carbon material not supporting the catalyst ingredient, and a gas-diffusing carbon material not supporting the catalyst ingredient; the catalyst layer is comprised of two phases of a catalyst aggregated phase having the catalyst-supporting carbon material supporting the catalyst ingredient and the conductivity-aiding carbon material not supporting the catalyst ingredient aggregated as main ingredients and a gas-diffusing carbon material aggregated phase having the gas-diffusing carbon material not supporting the catalyst ingredient aggregated as a main ingredient; and the catalyst aggregated phase is a continuous phase while the gas-diffusing carbon material aggregated phase is dispersed in the catalyst aggregated phase. | 02-24-2011 |
20110053042 | Fluororesin-Coated Polymer Film For Reinforcing Polymer Electrolyte Membrane, Reinforced Polymer Electrolyte Membrane, and Membrane Electrode Assembly - Disclosed is a fluororesin-coated polymer film for reinforcing a polymer electrolyte membrane, wherein the fluororesin-coated polymer film is fabricated by forming on at least one side of a polymer film a coating of a reaction product of (A) a fluorine-containing copolymer composed of a fluoroolefin, a cyclohexyl group-containing acrylic ester, and a hydroxyl group-containing vinyl ether, and (B) a crosslinking agent having two or more isocyanate groups. The polymer film according to the present invention not only exhibits sufficiently high initial adhesion strength, with respect to the polymer electrolyte membrane, but also retains thereafter high adhesion strength in actual operating environments. | 03-03-2011 |
20110065020 | PROTON-CONDUCTING MEMBRANE AND ITS USE - A proton-conducting polymer membrane comprising at least one polyazole, at least one ionic liquid and at least one compound of the formula (P1) | 03-17-2011 |
20110070524 | Diffusion Media, Fuel Cells, and Fuel Cell Powered Systems - In at least certain embodiments, the present invention provides a diffusion media and fuel cells and systems employing the diffusion media. In at least one embodiment, the diffusion media comprises a porous matrix having an outer surface and a hydrophilic polymeric coating on at least a portion of the porous matrix with the hydrophilic coating comprising the cured product of a formulation comprising a hydrophilic monomer. | 03-24-2011 |
20110076595 | DIRECT OXIDATION FUEL CELL - A direct oxidation fuel cell includes at least one cell. The cell includes a membrane electrode assembly including an anode, a cathode, and an electrolyte membrane disposed between the anode and the cathode. The cell also includes: an anode-side separator being in contact with the anode and having a fuel flow channel for supplying a fuel to the anode; and a cathode-side separator being in contact with the cathode and having an oxidant flow channel for supplying an oxidant to the cathode. The electrolyte membrane includes an ion exchange resin and has an ion exchange capacity per unit volume which is smaller upstream of the fuel flow channel than downstream thereof. | 03-31-2011 |
20110081600 | CARBON-TITANIUM OXIDE ELECTROCATALYST SUPPORTS FOR OXYGEN REDUCTION IN PEM FUEL CELLS - A high surface area support material is formed of an intimate mixture of carbon clusters and titanium oxide clusters. A catalytic metal, such as platinum, is deposited on the support particles and the catalyzed material used as an electrocatalyst in an electrochemical cell such as a PEM fuel cell. The composite material is prepared by thermal decomposition and oxidation of an intimate mixture of a precursor carbon polymer, a titanium alkoxide and a surfactant that serves as a molecular template for the mixed precursors. | 04-07-2011 |
20110086288 | FUEL CELL STRUCTURE WITH POROUS METAL PLATE - A fuel cell structure with a porous metal plate includes a membrane electrode assembly (MEA), a first porous metal plate, a metal plate, and a pair of end plates. The first porous metal plate and the metal plate are disposed on opposite outer surfaces of two gas diffusion layers (GDLs) of the MEA, respectively, and have fuel channels contacting with the GDLs. The end plates are arranged on outer surfaces of the first porous metal plate and of the metal plate, respectively, to close cooling-liquid flow channels of the first porous metal plate and of the metal plate. A pressure difference between fuel and cooling liquid within the fuel cell structure pushes the cooling liquid flowing through the cooling-liquid flow channels of the first porous metal plate to seep into the fuel channels spontaneously and hence humidify the fuel automatically, thereby maintaining the reaction efficiency of the fuel cell structure. | 04-14-2011 |
20110091792 | FUEL CELL AND METHOD OF MANUFACTURE THEREOF - Provided are a fuel cell making it possible to make contact pressures high between its electrode layers and its metallic layers and others, thereby improving the power of the cell, and a method for manufacturing the cell. A fuel cell of the invention comprises a solid polymer electrolyte layer ( | 04-21-2011 |
20110097645 | Process for Preparing Membranes - Membranes and processes for preparing membranes having weakly acidic or weakly basic groups comprising the steps of: (i) applying a curable composition to a support; (ii) curing the composition for less than 30 seconds to form a membrane; and (iii) optionally removing the membrane from the support; wherein the curable composition comprises a crosslinking agent having at least two acrylic groups. The membranes are particularly useful for producing electricity by reverse electrodialysis. | 04-28-2011 |
20110117474 | Solid electrolyte and electrochemical system including the solid electrolyte - Solid electrolyte comprising organic compound containing the organic polymer with hydroxyl group, inorganic compound, and water intended to provide the solid electrolyte that is less susceptible to performance deterioration even under high temperatures of 100° C. or higher and the electrochemical system using the said solid electrolyte. | 05-19-2011 |
20110123901 | NANO-MATERIAL CATALYST DEVICE - A catalyst member can comprise nano-scale nickel particles. The catalyst member can be used for a plurality of different uses, for example, electrodes of a fuel cell or an electrolysis device. The nano-scale nickel particles can be sintered or combined in other manners to form the desired shape. | 05-26-2011 |
20110129760 | POLYMER ELECTROLYTE MEMBRANE, METHOD FOR PRODUCING POLYMER ELECTROLYTE MEMBRANE, AND SOLID POLYMER FUEL CELL - A polymer electrolyte membrane having good resistance to radicals is provided. A polymer electrolyte membrane is characterized of containing organic/inorganic hybrid particles in which a surface of an inorganic particle, which is a radical scavenger, is modified with organic compounds in a polymer electrolyte. As the organic/inorganic hybrid particles in which a surface of an inorganic particle is modified with organic compounds, a radical scavenger prepared by reacting inorganic particles with organic compounds in a solvent by supercritical or subcritical hydrothermal synthesis is preferred. | 06-02-2011 |
20110143256 | METHOD OF ENHANCING ELECTRODES - One embodiment includes a method of forming a hydrophilic particle containing electrode including providing a catalyst; providing hydrophilic particles suspended in a liquid to form a liquid suspension; contacting said catalyst with said liquid suspension; and, drying said liquid suspension contacting said catalyst to leave said hydrophilic particles attached to said catalyst. | 06-16-2011 |
20110143257 | METHOD OF ENHANCING ELECTRODES - One embodiment includes a method of forming a hydrophilic particle containing electrode including providing a catalyst; providing hydrophilic particles suspended in a liquid to form a liquid suspension; contacting said catalyst with said liquid suspension; and, drying said liquid suspension contacting said catalyst to leave said hydrophilic particles attached to said catalyst. | 06-16-2011 |
20110143258 | ORGANIC/INORGANIC COMPLEX PROTON CONDUCTOR, ELECTRODE FOR FUEL CELL INCLUDING ORGANIC/INORGANIC COMPLEX PROTON CONDUCTOR, ELECTROLYTE MEMBRANE FOR FUEL CELL INCLUDING ORGANIC/INORGANIC COMPLEX PROTON CONDUCTOR, AND FUEL CELL INCLUDING ORGANIC/INORGANIC COMPLEX PROTON CONDUCTOR - Organic/inorganic complex proton conductors are provided which display high proton conductivity over a wide temperature range. Electrodes for fuel cells which include the organic/inorganic complex proton conductors are also provided. The invention also advantageously provides electrolyte membranes for fuel cells including the organic/inorganic complex proton conductors, and fuel cells including the organic/inorganic complex proton conductors. | 06-16-2011 |
20110159404 | Polyolefin Support to Prevent Dielectric Breakdown in PEMS - A fuel cell includes a first catalyst layer and a second catalyst layer. An ion conducting membrane is interposed between the first and second catalyst layers. The ion conducting layer includes a polyolefin support structure and an ion conducting polymer at least partially penetrating the polyolefin support structure. A set of electrically conducting flow field plates are in communication with the first and second catalyst layers. | 06-30-2011 |
20110159405 | Hydrophilic Polyelectrolyte Membranes Containing Poly(Vinyl Acetate) and Poly(Vinyl Alcohol) - An ion conducting membrane for fuel cell applications includes a combination of a polyvinyl polymer and an ion conducting polymer that is different than the polyvinyl polymer. The ion conducting membrane of this embodiment is able to operate in fuel cells at elevated temperatures with minimal external humidification. A fuel cell incorporating the ion conducting membrane between a first and second catalyst layer is also provided. | 06-30-2011 |
20110165497 | Method for Mitigating Fuel Cell Chemical Degradation - A composite membrane for fuel cell applications includes a support substrate with a predefined void volume. The void volume is at least partially filled with an ion conducting polymer composition that includes an additive that inhibits polymer degradation. Characteristically, the ion conducting polymer composition includes a first polymer with a cyclobutyl moiety and a second polymer that is different than the first polymer. | 07-07-2011 |
20110165498 | MANUFACTURE METHOD FOR POLYMER ELECTROLYTE FUEL, AND POLYMER ELECTROLYTE FUEL CELL MANUFACTURED BY THE METHOD - A protective layer ( | 07-07-2011 |
20110171561 | COMPOSITION WITH ENHANCED PROTON CONDUCTIVITY - A composition showing enhanced proton conductivity comprising at least a polymer with an ionizable group (A) containing a proton and carbon nanostructures functionalized with ionizable group (B) containing a proton is disclosed where A and B are same or different. | 07-14-2011 |
20110183235 | BIPOLAR PLATE WITH REDUCED COOLANT VOLUME AND ASYMMETRIC HEAT REMOVAL - A bipolar plate assembly is described. The coolant passage on either the anode side or the cathode side includes a material having a low thermal conductivity. Fuel cells containing the bipolar plate assembly and methods of making the bipolar plate assembly are also described. | 07-28-2011 |
20110183236 | PROCESS FOR PRODUCTION AND USE OF FUEL CELL ELECTRODES - The invention provides catalysts that are not corroded in acidic electrolytes or at high potential, have excellent durability and show high oxygen reducing ability. In a process of producing fuel cell electrodes containing a metal oxide and an electron conductive substance, the process includes steps in which a sugar is applied and carbonized on a support layer supporting the metal oxide and the electron conductive substance. | 07-28-2011 |
20110189585 | ION-EXCHANGE MEMBRANES STRUCTURED IN THE THICKNESS AND PROCESS FOR MANUFACTURING THESE MEMBRANES - Monolayer ion-exchange membrane structured in the thickness comprising ion-exchange sites covalently bonded to a support polymer, the membrane comprising two surface zones located on either side of a mid-zone, each surface zone having a thickness of not more than 15% of the total thickness of the membrane, in which the surface zones have a mean ion-exchange site density D | 08-04-2011 |
20110195340 | COMPOSITION, POLYMER THEREOF, ELECTRODE AND ELECTROLYTE MEMBRANE FOR FUEL CELL, AND FUEL CELL INCLUDING THE SAME - A composition including a compound having a fluorine functional group, a polymer as a polymerization product of the composition, an electrode and an electrolyte membrane for a fuel cell, which include the composition or the polymer thereof, and a fuel cell including at least one of the electrode and the electrolyte membrane. | 08-11-2011 |
20110200912 | FUEL CELL COMPONENTS AND SYSTEMS HAVING CARBON-CONTAINING ELECTRICALLY-CONDUCTIVE HOLLOW FIBERS - According to one embodiment, a system includes a structure having an ionically-conductive, electrically-resistive electrolyte/separator layer covering an inner or outer surface of a carbon-containing electrically-conductive hollow fiber and a catalyst coupled to the hollow fiber, an anode extending along at least part of a length of the structure, and a cathode extending along at least part of the length of the structure, the cathode being on an opposite side of the hollow fiber as the anode. In another embodiment, a method includes acquiring a structure having an ionically-conductive, electrically-resistive electrolyte/separator layer covering an inner or outer surface of a carbon-containing electrically-conductive hollow fiber and a catalyst along one side thereof, adding an anode that extends along at least part of a length of the structure, and adding a cathode that extends along at least part of the length of the structure on an opposite side as the anode. | 08-18-2011 |
20110217620 | POLYMER MEMBRANES, PROCESSES FOR PRODUCTION THEREOF AND USE THEREOF - The invention relates to improved polymer membranes, to processes for production thereof and to the use thereof. | 09-08-2011 |
20110217621 | PROCESS TO PRODUCE CATALYST COATED MEMBRANES FOR FUEL CELL APPLICATIONS - A process for forming a catalyst coated membrane by placing layered sandwich between two synchronously-driven, resilient, thermally conductive belts and transferring completely a first electrocatalyst layer adhered to a first flexible substrate and a second electrocatalyst layer adhered to a second flexible substrate to ionomeric polymer membrane. | 09-08-2011 |
20110236790 | SYSTEM, METHODS AND MATERIALS FOR STORING AND RETRIEVING HYDROGEN - A system for storing and retrieving elemental hydrogen. The system includes a housing, a hydrogen storage element enclosed within the housing and having a solid-state hydrogen storage material, and a control system for regulating storage of hydrogen into and retrieval of hydrogen from the storage material. At least a portion of the storage material is a porous matrix material having atoms of a first element capable of bonding with more than one hydrogen atom per atom of the first element, and atoms of a second element capable of molecularly bonding to atoms of the first element and hydrogen. Different atoms of the first element have bond sites available for different numbers of hydrogen atoms at different levels of bonding energy. The atoms of the second element are bonded to those atoms of the first element having bond sites for more than one hydrogen atom. | 09-29-2011 |
20110236791 | ANODE CATALYST LAYER FOR POLYMER ELECTROLYTE FUEL CELL - An object of the present invention is to optimize an anode catalyst layer such that high output performance can be achieved even under low-humidity conditions. In addition, another object of the present invention is to provide a polymer electrolyte fuel cell having such an anode catalyst layer. | 09-29-2011 |
20110236792 | FUEL CELL AND METHOD FOR MANUFACTURING SAME - In a fuel cell of the present invention, a gas diffusion layer ( | 09-29-2011 |
20110236793 | Highly Stable Fuel Cell Membranes and Methods of Making Them - A solid polymer electrolyte membrane having (a) an ion exchange material and (b) dispersed in said ion exchange material, a hydrogen peroxide decomposition catalyst bound to a carbon particle support, wherein the hydrogen peroxide decomposition catalyst comprises (i) polyvinylphosphonic acid and (ii) cerium. | 09-29-2011 |
20110244367 | SEPARATION MEMBRANE FOR FUEL CELL, AND METHOD FOR PRODUCTION THEREOF - Disclosed is a membrane for a fuel cell, which comprises: a polymer electrolyte membrane which comprises a cross-linked anion-exchange resin having a strongly basic anion-exchange group such as a quaternary ammonium salt group, a quaternary pyridinium salt group and a quaternary imidazolium salt group; and a polymer which is attached on at least one surface of the polymer electrolyte membrane and has a weakly acidic group such as a polyacrylic acid. Also disclosed is a method for producing the membrane. | 10-06-2011 |
20110244368 | NORBORNENE-TYPE POLYMERS HAVING QUATERNARY AMMONIUM FUNCTIONALITY - Embodiments of the present disclosure encompass vinyl addition and ROMP polymers having at least one type of repeating unit that encompasses a comprise N | 10-06-2011 |
20110262837 | Two-Dimensional Composite Particle Adapted For Use As A Catalyst And Method Of Making Same - The present invention is directed to a composite particle that is microscopically two-dimensional with a third nanoscopic dimension, and to methods of making same. The particle may include a support and a metal layer. The metal layer may be catalytically active such that the particle is adapted to act as a catalyst. | 10-27-2011 |
20110281200 | COMPOUND AND COMPOSITION INCLUDING COMPOUND, WITH FUEL CELL, FUEL CELL ELECTRODE AND FUEL CELL ELECTROLYTE MEMBRANE USING SAME - A compound that is a polymerization product of a compound composition that contains a diisocyanate-based compound and an aromatic polyol, a composition that contains the compound and an interpenetration polymer, a fuel cell electrode including either the compound or the composition, a fuel cell electrolyte membrane including either the compound or the composition, and a fuel cell including at least one selected from the group consisting of the fuel cell electrode and the fuel cell electrolyte membrane. | 11-17-2011 |
20110287336 | ELECTRICAL CONDUCTIVE MEMBER AND POLYMER ELECTROLYTE FUEL CELL USING THE SAME - An electrical conductive member includes: an electrical conductive structure including: a substrate ( | 11-24-2011 |
20110287337 | METHOD FOR PULSE PLATING CARBON BLACK SHEET WITH METALLIC NANO PARTICLE THIN FILM LAYER, AND CARBON BLACK SHEET AND FUEL CELL POLYMER ELECTROLYTE MEMBRANE/ELECTRODE ASSEMBLY PREPARED USING SHEET - The present invention relates to a carbon black sheet with a thin layer of metal nanoparticles by pulse electroplating, which allows metal nanoparticles such as platinum, etc. to be uniformly dispersed on a carbon black layer and is very thin, enhancing the efficiency of a metal catalyst such as platinum, etc., minimizing the amount of the metal used to reduce the manufacturing costs significantly, and realizing a continuous process, and a polymer membrane electrode assembly (MEA) for a fuel cell by using the same. | 11-24-2011 |
20110305970 | CHEMICALLY LINKED HYDROGEL MATERIALS AND USES THEREOF IN ELECTRODES and/or ELECTROLYTES IN ELECTROCHEMICAL ENERGY DEVICES - A chemically linked catalyst-binder hydrogel material comprised of a water-insoluble chemical hydrogel is useful in, for example, fuel cells, batteries, electrochemical supercapacitors, semi-fuel cells etc. The water-insoluble chemical hydrogel is prepared by a chemical cross-linking reaction between a polymer (such as PVA or chitosan or gelatin) and an aqueous cross-linking agent such as glutaraldehyde, which is catalyzed by protic acid under ambient conditions of temperature and pressure. | 12-15-2011 |
20110305971 | SOLID POLYMER ELECTROLYTE MATERIAL, LIQUID COMPOSITION, SOLID POLYMER FUEL CELL AND FLUOROPOLYMER - A solid polymer electrolyte material made of a copolymer comprising a repeating unit based on a fluoromonomer A which gives a polymer having an alicyclic structure in its main chain by radical polymerization, and a repeating unit based on a fluoromonomer B of the following formula (1): | 12-15-2011 |
20110318671 | Proton-conducting membrane and use thereof - The present invention relates to a novel proton-conducting polymer membrane based on polyazoles which can, owing to its excellent chemical and thermal properties, be used for a variety of purposes and is particularly suitable as a polymer-electrolyte membrane (PEM) for the production of membrane electrode units for so-called PEM fuel cells. | 12-29-2011 |
20120003564 | PROCESS FOR PRODUCING POLYMERIC ELECTROLYTE MEMBRANE - Disclosed is a method for producing a polymer electrolyte membrane, which comprises the steps of: removing a part of a salt component produced during polycondensation from a polymerization solution of a polymer electrolyte having a density of an ionic group of 2 mmol/g or more directly by centrifugal separation, thereby preparing a coating solution; applying the coating solution on a substrate by casting; removing a part of a solvent from the coating solution to form a film-shaped material on the substrate; and bringing the film-shaped material on the substrate into contact with water and/or an aqueous acidic solution to remove the salt component produced during the polycondensation. According to the method for producing an electrolyte membrane, even an electrolyte having a high density of an ionic group can be purified. Also disclosed is an electrolyte membrane capable of being used in a fuel cell which is operated at a high temperature higher than 80° C. and under low humidity conditions having a relative humidity of 60% or less. | 01-05-2012 |
20120021335 | Laminate and Method For Producing Same - The present invention provides a laminate in which a layer containing an ion-exchange resin is combined with a release film which exhibits satisfactory releasability of the layer containing an ion-exchange resin. The laminate according to the present invention is produced by laminating a layer containing an ion-exchange resin on a release film made of a cycloolefinic copolymer. | 01-26-2012 |
20120058414 | METHOD FOR PREPARING MEMBRANE-ELECTRODE ASSEMBLY, MEMBRANE-ELECTRODE ASSEMBLY PREPARED THEREFROM AND FUEL CELL COMPRISING THE SAME - Provided is a method for producing a membrane-electrode assembly for a full cell, comprising: preparing catalyst ink slurry from a catalyst, an ion conductive polymer and a solvent; applying the catalyst ink slurry onto a support film, followed by vacuum drying; and transferring the support film to either surface or both surfaces of an electrolyte membrane to form a catalyst layer on the electrolyte membrane. A membrane-electrode assembly obtained by the method and a fuel cell including the membrane-electrode assembly are also provided. The method provides a membrane-electrode assembly having increased porosity, and thus the membrane-electrode assembly shows significantly reduced mass transfer resistance. Therefore, the output density and the quality of the fuel cell including the membrane-electrode assembly prepared therefrom can be improved. | 03-08-2012 |
20120058415 | CATALYST, PRODUCTION PROCESS THEREFOR AND USE THEREOF | 03-08-2012 |
20120077109 | CERAMIC POROUS SUBSTRATE, REINFORCED COMPOSITE ELECTROLYTE MEMBRANE USING THE SAME AND MEMBRANE-ELECTRODE ASSEMBLY HAVING THE SAME - The present invention relates to a ceramic porous substrate, a reinforced composite electrolyte membrane using the same, and a membrane-electrode assembly having the same. The ceramic porous substrate comprises: a porous polymer base; and void structures formed on the surface of the porous polymer base by linking the space of the inorganic nanoparticles using a polymer binder or a silane-based inorganic binder. The ceramic porous substrate has improved mechanical properties compared to the porous polymer substrate alone, and the void structures thereof can be controlled in various ways. | 03-29-2012 |
20120088182 | NANO-MATERIAL CATALYST DEVICE - A catalyst member can comprise nano-scale nickel particles. The catalyst member can be used for a plurality of different uses, for example, electrodes of a fuel cell or an electrolysis device. The nano-scale nickel particles can be sintered or combined in other manners to form the desired shape. | 04-12-2012 |
20120088183 | FUEL CELL AND FUEL CELL STACK - In a solid polymer electrolyte membrane [film] type fuel cell of the invention, where a pair of electrodes are provided on opposite sides of a solid polymer electrolyte membrane [film], and the outside thereof is clamped by a pair of separators, and nonconductive picture frame-shaped members | 04-12-2012 |
20120094211 | POLYAZOLE-CONTAINING COMPOSITION - Composition in the form of a solution and/or dispersion, comprising:
| 04-19-2012 |
20120107720 | SELF-SUPPORTING DYNAMIC POLYMER MEMBRANE, METHOD OF PREPARATION, AND USES - The present invention relates to self-supporting dynamic polymer membranes (called “dynamer” membranes) of the polyimine type, to their method of preparation and to their use in separation processes, especially for separating gaseous CP species. | 05-03-2012 |
20120107721 | POLYMER ELECTROLYTE MEMBRANE, AND MEMBRANE ELECTRODE ASSEMBLY AND POLYMER ELECTROLYTE FUEL CELL USING THE SAME - Disclosed is a fuel cell in which a membrane electrode assembly less undergoes increase in ion conduction resistance, and a polymer electrolyte membrane less undergoes deterioration. Specifically, the polymer electrolyte membrane includes a first membrane and a second membrane being two different membranes composed of polymer electrolytes having different ion-exchange capacities, in which the first membrane has an area of one surface thereof equal to or larger than an area of one surface of an anode or a cathode, and the second membrane has an area of one surface thereof smaller than that of the first membrane and is arranged in a gas inflow region on a side being in contact with the cathode. The second membrane has an ion-exchange capacity smaller than that of the first membrane or has a number-average molecular weight larger than that of the first membrane. | 05-03-2012 |
20120107722 | SEPARATOR AND FUEL CELL USING THE SAME - A separator for a fuel cell includes a metal separator (metal substrate) having projections formed by ribs, and porous members provided in a plurality of flow passages partitioned by the projections, in which a hydrophilic portion is provided in a center part of a cross section orthogonal to a flow direction in the porous member, and a water repellent portion is provided in at least a part of portions in contact with wall surfaces of the flow passage within a range of the cross section. | 05-03-2012 |
20120107723 | PORE FORMATION BY IN SITU ETCHING OF NANOROD PEM FUEL CELL ELECTRODES - The invention includes a method for use in creating electrochemical electrodes including removing a supporting structure in situ after the assembly of the electrochemical cell. | 05-03-2012 |
20120107724 | ELECTRODE CATALYST FOR FUEL CELL, METHOD FOR PRODUCING THE SAME, AND POLYMER ELECTROLYTE FUEL CELL USING THE SAME - An electrode catalyst for a fuel cell consists principally of a carbon support, and a platinum catalyst or a platinum-alloy catalyst supported on the carbon support. In the electrode catalyst, at least 0.7 mmol of an acid per gram of the electrode catalyst is present on the carbon support. | 05-03-2012 |
20120122016 | Fuel Cell Durability Through Oxide Supported Precious Metals in Membrane - A fuel cell includes an anode, a cathode, and an ion conducting membrane interposed between the anode and cathode. The ion conducting membrane includes a base layer that has an ion conducting polymer and additive layer that has a metal supported on an oxide support, the oxide support scavenging hydroxyl radicals formed during fuel cell operation. | 05-17-2012 |
20120135332 | FUEL CELLS HAVING IMPROVED DURABILITY - A fuel cell or a fuel cell stack component comprises an active area and a non-active area. A peroxide decomposing metal compound or metal alloy is disposed in or on the non-active area of a fuel cell or a fuel cell component. The metal compound or alloy is capable of providing a peroxide decomposing metal species that can migrate from the non-active area to an active area of a fuel cell. A fuel cell or membrane electrode assembly having a peroxide decomposing metal compound or alloy disposed in its non-active area exhibits improved durability. | 05-31-2012 |
20120135333 | ORGANIC/INORGANIC COMPOSITE BLEND MEMBRANE COMPOSITIONS OF POLYELECTROLYE BLENDS WITH NANOPARTICLES - The invention relates to composite blend membranes formed from blends of one or more polyelectrolytes, and one or more types of nanoparticles. Preferably the blend also includes one or more fluoropolymers. The addition of the nanoparticles was found to enhance the conductivity and mechanical properties of the membranes. | 05-31-2012 |
20120141912 | FUEL CELL STACK COMPRISING AN IMPERMEABLE COATING - A fuel cell comprises a substantially contaminant free and contaminant impermeable coating disposed on at least one of a cathode, an anode, a gasket, an insulator plate, a cooler plate, a bipolar plate, a gas diffusion media layer, a polymer electrolyte membrane, an end plate, a tie-bolt, and a gas flow manifold. A process of producing a fuel cell and a fuel cell stack component are also disclosed. | 06-07-2012 |
20120141913 | POLYMER ELECTROLYTE MEMBRANE FOR POLYMER ELECTROLYTE FUEL CELL, METHOD OF MANUFACTURING THE SAME AND POLYMER ELECTROLYTE FUEL CELL SYSTEM INCLUDING THE SAME - A polymer electrolyte membrane for a polymer electrolyte fuel cell, a method of manufacturing the same, and a polymer electrolyte fuel cell system including the same are disclosed, and the polymer electrolyte membrane includes a hydrocarbon-based proton conductive polymer membrane. The polymer membrane has a surface contact angle ranging from 80° to 180°. | 06-07-2012 |
20120141914 | Gas Diffusion Layer Member For Solid Polymer Fuel Cells, and Solid Polymer Fuel Cell - To provide a gas diffusion layer member with a good RH balance. | 06-07-2012 |
20120148938 | CONDUCTIVE COMPOSITION AND METHOD OF PREPARATION, POLYMER THEREOF, AND ELECTRODE, ELECTROLYTE MEMBRANE AND FUEL CELL INCLUDING THE COMPOSITION OR POLYMER - A conductive composition, a polymer obtained from the conductive composition, a method of preparing the composition, an electrode and electrolyte membrane of a fuel cell, each including at least one of the composition and the polymer, and a fuel cell including at least one of the composition and the polymer. The conductive composition includes at least one benzoxazine-based compound with a conductive functional group and a cross-linkable compound. A composition including a conductive functional group and a polymer that is a polymerization product of the composition demonstrates good resistance to chemicals, heat, and acid. An electrode for fuel cells that includes the same demonstrates improved electrical conductivity. | 06-14-2012 |
20120148939 | ANION EXCHANGE MEMBRANE - An anion exchange membrane includes a quaternary ammonium salt group in which two methyl groups, and one alkyl group having 3 to 8 carbon atoms are bonded to a nitrogen atom. | 06-14-2012 |
20120164556 | POLYBENZOXAZINES, ELECTROLYTE MEMBRANE COMPRISING THE SAME, AND FUEL CELL EMPLOYING THE ELECTROLYTE MEMBRANE - Crosslinked polybenzoxazines obtained by crosslinking a monofunctional first benzoxazine monomer and a multifunctional second benzoxazine monomer with a crosslinkable compound, an electrolyte membrane including the same, a method of preparing the electrolyte membrane, a fuel cell including the electrolyte membrane having the crosslinked polybenzoxazines using the method. The crosslinked polybenzoxazines have strong acid trapping capability, improved mechanical properties, and excellent chemical stability as it does not melt in polyphosphoric acid. Even as the amount of impregnated proton carrier and the temperature are increased, mechanical and chemical stability is highly maintained, and thus the electrolyte membrane can be effectively used for fuel cells at a high temperature. | 06-28-2012 |
20120164557 | METHOD FOR PRODUCING A POLYMER ELECTROLYTE MEMBRANE - A method for producing a polymer electrolyte membrane having a strong acid group or a superstrong acid group is provided. The method includes casting on a support a polymer electrolyte solution containing from 0.0005 to 2 parts by weight of a phosphate ester represented by formula (11) and/or a salt between an amine represented by formula (12) and a phosphate ester represented by formula (11), with respect to 100 parts by weight of a polymer electrolyte; heating the solution until a solvent of the solution is evaporated to form a self-supporting membrane; and removing the self-supporting membrane from the support. | 06-28-2012 |
20120258382 | ADDITIVES TO MITIGATE CATALYST LAYER DEGRADATION IN FUEL CELLS - Ligand additives having two or more coordination sites in close proximity can be used in the polymer electrolyte of membrane electrode assemblies in solid polymer electrolyte fuel cells in order to reduce the dissolution of catalyst, particularly from the cathode, and hence reduce fuel cell degradation over time. | 10-11-2012 |
20120270141 | NITROGEN-CONTAINING AROMATIC COMPOUNDS AND METAL COMPLEXES - To provide nitrogen-containing aromatic compounds with excellent oxygen reduction activity, metal complexes containing them, and catalysts and electrodes employing the same, the present invention provides an aromatic compound satisfying the following conditions (a) and (b):
| 10-25-2012 |
20120301813 | SOLID POLYMER ELECTROLYTE MATERIAL, LIQUID COMPOSITION, SOLID POLYMER FUEL CELL AND FLUOROPOLYMER - A solid polymer electrolyte material made of a s copolymer comprising a repeating unit based on a fluoromonomer A which gives a polymer having an alicyclic structure in its main chain by radical polymerization, and a repeating unit based on a fluoromonomer B of the following formula (1): | 11-29-2012 |
20120321992 | COMPOSITE ELECTROLYTE MEMBRANE FOR FUEL CELL, METHOD OF MANUFACTURING THE MEMBRANE, AND FUEL CELL INCLUDING THE MEMBRANE - A composite electrolyte membrane for a fuel cell with a controlled phosphoric acid-based material retention ratio. The composite electrolyte membrane includes an electrolyte membrane containing a compound having a phosphoric acid-based material-containing functional group. Also disclosed are a method for manufacturing the composite electrolyte membrane, and a fuel cell including the composite electrolyte membrane. | 12-20-2012 |
20120321993 | PROTON CONDUCTIVE POLYMER ELECTROLYTE MEMBRANE HAVING EXCELLENT OXIDATION RESISTANCE, AND PROCESS FOR PRODUCING THE SAME - The process for producing a proton conductive polymer electrolyte membrane of the present invention includes the steps of: irradiating resin fine particles with radiation; graft-polymerizing a vinyl monomer having a sulfonic acid group precursor and a vinyl monomer having a carbonyl group equivalent with the resin fine particles in a solid-liquid two-phase system to obtain a finely particulate graft polymer; preparing a casting solution of a polymer having a phosphoric acid group or a phosphonic acid group and the graft polymer, and forming a cast membrane from this solution; drying the cast membrane to obtain a film; converting the sulfonic acid group precursor into a sulfonic acid group; and forming a crosslinked structure between the carbonyl group equivalents. In the solid-liquid two-phase system, a liquid phase includes the vinyl monomers and a solvent for the monomers, and a solid phase includes the resin fine particles. By this process, a proton conductive polymer electrolyte membrane having high oxidation resistance, and a process capable of producing this membrane industrially are provided. | 12-20-2012 |
20130011766 | FUEL CELL ASSEMBLY - A polyelectrolyte membrane fuel cell apparatus, includes a backing plate, a top clamping plate, at least one in-plane planar fuel cell assembly interposed between the top plate and the backing plate, and a current collector foil interposed between the planar fuel cell(s) and the top clamping plate, the current collector foil including an electrically non-conductive foil having a pattern of electrically conductive material provided thereon on the side facing the planar fuel cell. The fuel cell apparatus is held together by spot welds between the top clamping plate and the backing plate. | 01-10-2013 |
20130017471 | FUEL CELL WITH SELECTIVELY CONDUCTING ANODE COMPONENT - To reduce degradation of a solid polymer fuel cell during startup and shutdown, a selectively conducting component is incorporated in electrical series with the anode components in the fuel cell. The component is characterized by a low electrical resistance in the presence of hydrogen or fuel and a high resistance in the presence of air. High cathode potentials can be prevented by integrating such a component into the fuel cell. A suitable selectively conducting component can comprise a layer of selectively conducting material, such as a metal oxide. | 01-17-2013 |
20130022893 | COMPOSITION, COMPOSITE MEMBRANE PREPARED FROM COMPOSITION, FUEL CELL INCLUDING THE COMPOSITE MEMBRANE, AND METHOD OF MANUFACTURING THE COMPOSITE MEMBRANE - A composite membrane containing a composite material including an azole-based polymer and a compound represented by Formula 3 below, a method of preparing the composite membrane, and a fuel cell including the composite membrane: | 01-24-2013 |
20130029249 | PROTON CONDUCTING MATERIALS - The description includes materials that may be useful for fuel cell applications such as in the manufacture of fuel cell electrodes, proton exchange membranes (PEM), as catalyst additives or in tie layers designed to be thermally and chemically robust while operating within a fuel cell's harsh environment at higher temperatures and to conduct protons, with significantly higher levels of bound acidic groups, while in a low hydration state. Methods of making the materials are also described. | 01-31-2013 |
20130052563 | MEMBRANE - A reinforced membrane comprises: | 02-28-2013 |
20130059229 | ELECTROLYTE MATERIAL, AND PROTON CONDUCTIVE POLYMER ELECTROLYTE MEMBRANE, MEMBRANE ELECTRODE ASSEMBLY AND POLYMER ELECTROLYTE FUEL CELL USING THE SAME - Disclosed is an electrolyte material containing a copolymer including a polyvinyl as a main chain, the copolymer including a functional group with proton conductivity; and an alkoxide of Si or Ti as a side chain. By using the electrolyte material, a proton conductive polymer electrolyte membrane with flexibility, high ion conductivity, excellent water resistance, and a small change in size can be obtained. And a polymer electrolyte fuel cell can be provided which has high output and durability by using the electrolyte membrane. | 03-07-2013 |
20130084515 | POLYIMIDE POROUS WEB, METHOD FOR MANUFACTURING THE SAME, AND ELECTROLYTE MEMBRANE COMPRISING THE SAME - Disclosed is a polyimide porous web with good porosity, good dimensional stability, and uniform pore; a method for manufacturing the same; and an electrolyte membrane with improved ion conductivity and good dimensional stability owing to ion conductors uniformly impregnated in the porous web, the polyimide porous web having a porosity of 60% to 90%, wherein not less than 80% of entire pores of the porous web have a pore diameter which differs from an average pore diameter of the porous web by not more than 1.5 μm. | 04-04-2013 |
20130089809 | ASSEMBLING BIPOLAR PLATES FOR FUEL CELLS USING MICROENCAPSULATED ADHESIVES - The flow field plates in a bipolar plate assembly for a fuel cell can be both bonded and sealed appropriately using microencapsulated adhesives. This offers several advantages over using other adhesives which may have limited pot life and/or require lengthy curing periods at elevated temperature during which time the plates must be stably positioned and under compression. | 04-11-2013 |
20130095411 | FLUORINE CONTAINING IONOMER COMPOSITE WITH ION EXCHANGE FUNCTION, PREPARATION METHOD AND USE THEREOF - Provided is a composite which is comprised of one or more ion exchange resin(s) and fluorine containing polymer fiber, wherein the fiber and the film-forming resin form a triazine-ring crosslinked structure, so that the film prepared from the composite is of good airtightness and stability, as well as high ion exchange capacity and high conductivity. The preparation method of the composite, the product prepared from this composite and the use thereof are also provided. | 04-18-2013 |
20130137011 | Ionomers and Methods of Making Same and Uses Thereof - Ionomers comprising ionic groups such as, for example, tetraalkylammonium groups and methods of making such ionomers. For example, the ionomers can be produced by ring opening metathesis polymerization of alkene-containing monomers with tetraalkylammonium groups and, optionally, alkene-containing monomers without tetraalkylammonium groups. The ionomers can be used in applications such as, for example, fuel cell applications. | 05-30-2013 |
20130164653 | USE OF A FUNCTIONALIZED MINERAL FILLER FOR CHEMICALLY STABILIZING A POLYMER, MEMBRANE THUS STABILIZED, PROCESS FOR PREPARING SAME AND USES THEREOF - The present invention concerns the use of at least one mineral filler functionalized by at least one group comprising at least one sulfur atom for chemically stabilizing a polymer matrix and/or for increasing the durability thereof. The present invention also concerns a membrane such as an ion exchange membrane and in particular a proton exchange membrane thus stabilized, its method of preparation and uses thereof. | 06-27-2013 |
20130196251 | HYBRID MEMBRANES CONTAINING TITANIUM DIOXIDE DOPED WITH FLUORINE - Hybrid membranes based on crystalline titanium dioxide containing fluorine atoms within the crystalline lattice comprising atoms of titanium and oxygen are described; these hybrid membranes are particularly suitable for the production of fuel cells and electrolysers. The titanium dioxide contained in them may be produced by a process comprising the following stages: (a) a titanium ore is reacted with a NH | 08-01-2013 |
20130202987 | Multi-Layer Polyelectrolyte Membranes - A multilayer polyelectrolyte membrane for fuel cell applications includes a first perfluorocyclobutyl-containing layer that includes a polymer having perfluorocyclobutyl moieties. The first layer is characteristically planar having a first major side and a second major side over which additional layers are disposed. The membrane also includes a first PFSA layer disposed over the first major side of the first layer and a second PFSA layer disposed over the second major side of the first layer. | 08-08-2013 |
20130209914 | Fluororesin-Coated Polymer Film For Reinforcing Polymer Electrolyte Membrane, Reinforced Polymer Electrolyte Membrane, and Membrane Electrode Assembly - Disclosed is a fluororesin-coated polymer film for reinforcing a polymer electrolyte membrane, wherein the fluororesin-coated polymer film is fabricated by forming on at least one side of a polymer film a coating of a reaction product of (A) a fluorine-containing copolymer composed of a fluoroolefin, a cyclohexyl group-containing acrylic ester, and a hydroxyl group-containing vinyl ether, and (B) a crosslinking agent having two or more isocyanate groups. The polymer film according to the present invention not only exhibits sufficiently high initial adhesion strength, with respect to the polymer electrolyte membrane, but also retains thereafter high adhesion strength in actual operating environments. | 08-15-2013 |
20130216935 | POLY(BENZIMIDAZOLE-CO-BENZOXAZOLE) AND METHOD FOR PREPARING THE SAME - Provided is poly(benzimidazole-co-benzoxazole) having polybenzimidazole to which benzoxazole units are introduced, as a polymer electrolyte material. The polymer electrolyte material has both high proton conductivity and excellent mechanical properties even when it is obtained by in-situ phosphoric acid doping. The polymer electrolyte material may substitute for the conventional phosphoric acid-doped polybenzimidazole in a polymer electrolyte membrane fuel cell, particularly in a high-temperature polymer electrolyte membrane fuel cell. | 08-22-2013 |
20130252135 | PT-RU NANO-ALLOY/GRAPHENE CATALYST, PREPARATION METHOD AND USE THEREOF - A Pt—Ru nano-alloy/graphene catalyst comprises graphene as a support, and a Pt—Ru nano-alloy loaded on the graphene. The use of graphene as support for the catalyst takes advantage of the ion effect and tow-dimensional ductility of graphene, which increase the stability of the catalyst. The catalyst is prepared by a reverse micelles system method which provides a micro-environment (i.e. water-in-oil microemulsion), so that the particle size of the resulting nano-alloy particles can be regulated easily and is more uniformly distributed. The use of the catalyst in electrochemistry is also disclosed. | 09-26-2013 |
20130260283 | ORGANIC-INORGANIC HYBRID NANOFIBRES HAVING A MESOPOROUS INORGANIC PHASE, PREPARATION THEREOF BY ELECTROSPINNING, MEMBRANE, ELECTRODE, AND FUEL CELL - Organic-inorganic hybrid nanofibres comprising two phases:
| 10-03-2013 |
20130280640 | COMPACT FUEL CELL SYSTEM - An example fuel cell system includes a fuel cell power plant and a tank providing a volume that is configured to hold a fuel cell fluid. The fuel cell power plant is at least partially disposed within the volume. | 10-24-2013 |
20130280641 | METHOD FOR CREATING MULTILAYER HIGH ADSORPTIVE COVERING FOR FLUOROPOLYMERS - The present invention relates to a method for coating fluoropolymers with a coating substance, by atom transfer radical polymerisation and subsequent processing whereas a fluoropolymer is contacted with a reaction mixture comprising at least one ligand selected from the group consisting of multichained and polycyclic amines, at least one metal salt wherein the metal is in a first oxidation state, at least one solvent, and the organic coating substance in monomer form. | 10-24-2013 |
20130280642 | POROUS NANO-FIBER MATS TO REINFORCE PROTON CONDUCTING MEMBRANES FOR PEM APPLICATIONS - A method of manufacturing a proton conducting fuel cell composite membrane includes the step of electrospinning a non-charged polymeric material, such as PVDF and PSF, into fiber mats. The fibers are fused to one another to provide a welded porous mat. The welded porous mat is filled with proton conducting electrolyte, such as PFSA polymer, to generate a proton conducting composite membrane. The resulting proton conducting fuel cell membrane comprises a randomly oriented, three dimensional interlinked fiber lattice structure filled with proton conducting electrolyte, such as PFSA polymer. | 10-24-2013 |
20130288157 | ANION EXCHANGE COMPOSITE MEMBRANE FILLED WITH CROSSLINKED POLYMER ELECTROLYTES FOR FUEL CELLS AND METHOD FOR PREPARING THE SAME - An anion exchange composite membrane is filled with crosslinked polymer electrolytes for fuel cells. A method comprises, (A) preparing anion exchange electrolyte precursor solution, said anion exchange electrolyte precursor solution consisting of a electrolyte monomer of tetravalent ammonium salt having a cation, a bisacrylamide crosslinker having tertiary amine functional group, an initiator and water; (B) impregnating a porous polymer supporter into said electrolyte precursor solution; (C) forming primary anion exchange crosslink polymer electrolyte micropore filling membrane by laminating said polymer supporter and crosslinking within a film; (D) deriving quanternary ammonium of said crosslinker having tertiary amine functional group by immersing said primary anion exchange crosslink polymer electrolyte micropore filling membrane in Vinylbenzyl chloride monomer solution; and (E) preparing composite membrane filled with crosslinked polymer electrolytes by crosslinking after said ammonium deriving is complete, said crosslinking being radical polymerizing vinyl group of said electrolyte micropore filling membrane. | 10-31-2013 |
20130295487 | POLYMER BLEND PROTON EXCHANGE MEMBRANE AND METHOD FOR MANUFACTURING THE SAME - The present invention relates to a polymer blend proton exchange membrane comprising a soluble polymer and a sulfonated polymer, wherein the soluble polymer is at least one polymer selected from the group consisting of polysulfone, polyethersulfone and polyvinylidene fluoride, the sulfonated polymer is at least one polymer selected from the group consisting of sulfonated poly(ether-ether-ketone), sulfonated poly(ether-ketone-ether-ketone-ketone), sulfonated poly(phthalazinone ether keton), sulfonated phenolphthalein poly(ether sulfone), sulfonated polyimides, sulfonated polyphosphazene and sulfonated polybenzimidazole, and wherein the degree of sulfonation of the sulfonated polymer is in the range of 96% to 118%. The present invention further relates to a method for manufacturing the polymer blend proton exchange membrane. | 11-07-2013 |
20140011116 | MANUFACTURING METHOD AND APPARATUS FOR MEMBRANE ELECTRODE ASSEMBLY, AND POLYMER ELECTROLYTE FUEL CELL - Coating of catalyst ink is applied to a surface of a transfer roll to form a catalyst layer. The catalyst layer formed on the transfer roll is pressed on an excess coating-solution removing roll having a recessed portion while the catalyst layer is in semi-dry state to transfer and remove an excess catalyst layer from the transfer roll to a protruded portion of the excess coating-solution removing roll. The recessed portion has a same shape or a substantially same shape as a target pattern. A semi-dry catalyst layer having a target shape and remaining on the transfer roll is pressed on a polymer electrolyte membrane to bring the semi-dry catalyst layer into intimate contact with a surface of the polymer electrolyte membrane. The polymer electrolyte membrane having each side on which the semi-dry catalyst layer has been formed is dried. | 01-09-2014 |
20140065513 | ION-CONDUCTING COMPOSITE ELECTROLYTE COMPRISING PATH-ENGINEERED PARTICLES - An ion-conducting composite electrolyte is provided comprising path-engineered ion-conducting ceramic electrolyte particles and a solid polymeric matrix. The path-engineered particles are characterized by an anisotropic crystalline structure and the ionic conductivity of the crystalline structure in a preferred conductivity direction H associated with one of the crystal planes of the path-engineered particle is larger than the ionic conductivity of the crystalline structure in a reduced conductivity direction L associated with another of the crystal planes of the path-engineered particle. The path-engineered particles are sized and positioned in the polymeric matrix such that a majority of the path-engineered particles breach both of the opposite major faces of the matrix body and are oriented in the polymeric matrix such that the preferred conductivity direction H is more closely aligned with a minimum path length spanning a thickness of the matrix body than is the reduced conductivity direction L. | 03-06-2014 |
20140113215 | SPECIFIC PHOSPHONATED COPOLYMERS AND INORGANIC PARTICLES GRAFTED BY SAID COPOLYMERS - The invention relates to copolymers comprising a chain of siloxane repeat units of at least two different types, a first type of siloxane repeat unit comprising at least one —OH group on the silicon atom of the siloxane repeat unit and a second type of repeat unit comprising at least one pendant chain on the silicon atom of said repeat unit, this pendant chain consisting of a polymer chain comprising a chain of repeat units carrying at least one group of formula —PO | 04-24-2014 |
20140147772 | POLARIZABLE ION-CONDUCTING MATERIAL - A polarizable ion-conducting material. The material contains mobile ions and a matrix formed of a polymer having ionic groups of a charge opposite to that of the mobile ions, wherein the material has a polarization of at least 0.2 mC/g, a capacitance of at least 0.1 mF/g, and a polarization retention time of at least 5 seconds. Also disclosed is a device containing such a polarizable ion-conducting material. | 05-29-2014 |
20140154611 | CONTROLLED RADICAL COPOLYMERIZATION OF FLUORINATED MONOMERS BY XANTHATE OR TRITHIOCARBONATE - The invention relates to a method of preparing a fluorinated copolymer, comprising a step of copolymerization of a fluorinated monomer (of the vinylidene fluoride type) with an α-trifluoromethacrylic acid monomer or derivative of α-trifluoromethacrylic acid, in the presence of a xanthate or trithiocarbonate compound. The invention also relates to copolymers obtained by this method as well as block copolymers comprising a copolymer block prepared according to this method. | 06-05-2014 |
20140162172 | ELECTROLYTE MEMBRANE, PREPARING METHOD THEREOF, AND MEMBRANE ELECTRODE ASSEMBLY AND FUEL CELL INCLUDING THE MEMBRANE - An electrolyte membrane including: a host polymer having a fluoropolymer molecular chain having a segment of the formula —CF | 06-12-2014 |
20140193742 | BLOCK COPOLYMER, MANUFACTURING METHOD THEREFOR, AND POLYMER ELECTROLYTE MATERIAL, MOLDED POLYMER ELECTROLYTE, AND SOLID-POLYMER FUEL CELL USING SAID BLOCK COPOLYMER - To provide: a block copolymer that exhibits excellent proton conductivity even under low-humidification conditions, exhibits excellent mechanical strength and chemical stability, and when used in a polymer electrolyte fuel cell, allows high output and excellent physical durability; a polymer electrolyte material; and a polymer electrolyte form article and a polymer electrolyte fuel cell, using the same. | 07-10-2014 |
20140199613 | PROTON-CONDUCTING COMPOSITE MEMBRANE FOR FUEL CELLS - The present invention relates to a membrane that includes a porous polymer material made of a polyimide with interconnected macropores and impregnated with protic ionic liquid conductors (CLIP), as well as to the method for manufacturing same and to the uses thereof. The membranes of the invention fulfil the need for membranes including CLIPs, which have good proton-conducting properties as well as good physical properties, in particular high thermal and mechanical stability, in addition to a wide range of electrochemical stability. | 07-17-2014 |
20140255820 | PROTON EXCHANGE MEMBRANE LAYERS FOR FUEL CELLS AND RELATED APPLICATIONS - A membrane stack that includes a first polymer layer, a second polymer layer, and a nanostructured carbon material layer between the first polymer layer and the second polymer layer. The nanostructured carbon material layer includes a plurality of nanostructured carbon material intercalated with one or more proton conducting material or coated with one or more solid superacid particles. The first polymer layer and the second polymer layer are capable of transporting protons. The membranes described herein can be used as polymer electrolyte membranes in fuel cells and electrolyzers. | 09-11-2014 |
20140255821 | REDOX FLOW CELL MEMBRANE - A redox flow cell membrane includes a porous membrane that has a mean flow pore size of not more than 100 nm, that has a thickness of not more than 500 μm, and that has an air flow rate of not less than 0.1 ml/s·cm | 09-11-2014 |
20140315119 | HIGHLY CONDUCTIVE ANION-EXCHANGE COMPOSITE MEMBRANE WITH CROSSLINKED POLYMER ELECTROLYTE FOR ALKALINE FUEL CELL AND METHOD FOR PREPARING THE SAME - Disclosed are a new method for preparing a highly conductive anion-exchange composite membrane with a crosslinked polymer electrolyte for an alkaline fuel cell and a composite membrane prepared by the same. The method includes (A) mixing (vinylbenzyl)trimethylammonium chloride, 1,3,5-triacryloylhexahydro-1,3,5-triazine, and a mixed solution of deionized water and dimethyl formamide at a weight ratio of 1:1 together by stirring at a weight ratio of 60˜75:5˜16:20˜25; (B) mixing 100 parts by weight of the mixed solution with 0.5 to 2 parts by weight of a photoinitiator; (C) impregnating a porous polymer support with the solution so that a monomer solution soaks into the support; (D) interposing an electrolyte-impregnated membrane between polyethylene terephthalate (PET) films and irradiating the electrolyte-impregnated membrane with ultraviolet (UV) light having an energy of 30 to 150 mJ/cm | 10-23-2014 |
20140322628 | POLYMER ELECTROLYTE MEMBRANE, MEMBRANE ELECTRODE ASSEMBLY USING SAME AND POLYMER ELECTROLYTE FUEL CELL - To provide a polymer electrolyte membrane that has excellent proton conductivity even under low-humidification conditions, has excellent mechanical strength and chemical stability, and can achieve high output and excellent physical durability when made into a polymer electrolyte fuel cell. | 10-30-2014 |
20140329168 | HYBRID BIPOLAR PLATE ASSEMBLY FOR FUEL CELLS - Hybrid bipolar plate assemblies comprising a metal subassembly and a carbonaceous flow field insert can be used to provide for greater current densities from smaller volume fuel cell stacks. In particular, such hybrid bipolar plate assemblies allow for the combination of preferred oxidant channel structures, which can be formed in carbonaceous oxidant flow field inserts, with preferred smaller bipolar plate assembly thicknesses, which are possible with the use of metal plate subassemblies. | 11-06-2014 |
20140335439 | POLYMER ION EXCHANGE MEMBRANE AND METHOD OF PREPARING SAME - Disclosed are a polymer ion exchange membrane having a self-hydration capability at a high temperature under low humidity, a method of preparing the polymer ion exchange membrane, and a polymer electrolyte fuel cell system including the polymer ion exchange membrane. The polymer electrolyte membrane includes a hydrocarbon-based proton conductive polymercoating layer, and has a nano-crack on the hydrophobic surface and thus may secure ion conductivity and self-hydration capability under low humidity and remarkably improve electrochemical performance of an electrolyte. | 11-13-2014 |
20140335440 | MOLDED ARTICLE OF POLYMER ELECTROLYTE COMPOSITION AND SOLID POLYMER TYPE FUEL CELL USING SAME | 11-13-2014 |
20140349213 | COMPOSITE MEMBRANES, METHODS OF MAKING SAME, AND APPLICATIONS OF SAME - In one aspect of the present invention, a method of fabricating a composite membrane includes: forming a first polymer solution from a first polymer and a second polymer solution from a second polymer, respectively, where the first polymer includes a charged polymer and the second polymer includes an uncharged polymer; electrospinning, separately and simultaneously, the first and second polymer solutions to form a dual fiber mat with first polymer fibers and second polymer fibers; and processing the dual fiber mat by softening and flowing one of the first or second polymer fibers to fill in the void space between the other of the first and second polymer fibers so as to form the composite membrane. In some embodiments, the composite membrane may be a proton exchange membrane (PEM) or an anion exchange membrane (AEM). | 11-27-2014 |
20140370416 | PROTON EXCHANGE MEMBRANE FUEL CELL - The invention relates to a proton exchange membrane fuel cell and a method of designing the same. A method of designing a proton exchange membrane fuel cell comprising a gas diffusion layer is described. The method comprises: using a model of the proton exchange membrane fuel cell to determine performance of the fuel cell, wherein the model is based on a plurality of parameters of the fuel cell, the plurality of parameters including at least one anisotropic property of the gas diffusion layer, adjusting at least one of the plurality of parameters; determining whether or not performance of the fuel cell is improved by the adjusting step and designing the fuel cell by selecting the parameters which provide improved performance. A proton exchange membrane fuel cell is also described comprising a gas diffusion layer, the proton exchange membrane fuel cell having a plurality of parameters, wherein the parameters are selected to provide substantially uniform temperature distribution across the gas diffusion layer. | 12-18-2014 |
20140370417 | ANION EXCHANGE MEMBRANE, METHOD FOR PRODUCING THE SAME, AND FUEL CELL USING THE SAME - A method of the present invention for producing an anion exchange membrane includes the steps of: (i) irradiating a first polymer film with radiation; and (ii) graft-polymerizing a monomer containing a site into which a functional group having anion conducting ability can be introduced and an unsaturated carbon-carbon bond onto the radiation-irradiated first polymer film so as to form a second polymer film containing grafted chains. This method further includes the subsequent steps of: (a) subjecting the second polymer film to a treatment including irradiation with radiation so as to introduce a crosslinked structure into the grafted chains; and (b) introducing the functional group having anion conducting ability into the site. | 12-18-2014 |
20140370418 | MONOMERS AND POLYMERS CARRYING IMIDAZOLE AND BENZIMIDAZOLE GROUPINGS, AND PROTON EXCHANGE MEMBRANE CONTAINING THE SAME FOR THE PRODUCTION OF A FUEL CELL - The invention relates to a monomer (6, 14) carrying an imidazole-type heterocycle (3). According to the invention, the chemical structure of said monomer (6, 14) comprises at least one unit of formula (I) wherein R1 comprises an alkenyl grouping and R2 comprises a grouping for protecting one of the nitrogen atoms of the heterocycle. The invention also relates to a monomer carrying a benzimidazole-type heterocycle, and to protected polymers obtained from said monomers, deprotected polymers produced by the protected polymers, a proton exchange membrane based on deprotected polymers, and a fuel cell provided with said membrane. Furthermore, the invention relates to methods for producing the above-mentioned monomers and polymers. | 12-18-2014 |
20140377685 | METHOD FOR MANUFACTURING MEMBRANE-ELECTRODE ASSEMBLY FOR POLYMER ELECTROLYTE FUEL CELL AND MEMBRANE-ELECTRODE ASSEMBLY MANUFACTURED THEREBY - The present invention provides a method for manufacturing a membrane-electrode assembly for a polymer electrolyte fuel cell, in which the glass transition temperature of an electrolyte membrane is reduced using a hydrophilic solvent, and a membrane-electrode assembly for a polymer electrolyte fuel cell, manufactured by the method. In the method of the invention, the glass transition temperature of the electrolyte membrane to which a catalyst is transferred is reduced compared to that in a conventional method for manufacturing a membrane-electrode assembly for a polymer electrolyte fuel cell using the decal process. Thus, even to an electrolyte membrane material having a relatively high glass transition temperature, the catalyst may be transferred at a rate of 100% at a temperature of about 120° C., at which hot pressing is carried out. Thus, the problems associated with electrolyte membrane deterioration occurring in conventional methods can be solved. | 12-25-2014 |
20150010847 | METHOD FOR THE PRODUCTION OF A PROTON EXCHANGE MEMBRANE FOR A FUEL CELL BY MEANS OF SOLVENT-CASTING - Method of preparing a proton-exchange membrane for a fuel cell including placing in solution in a solvent a polymer selected from the group consisting of polymers having at least one monomer exhibiting a fluorinated group; adding at least one superacid to the polymer solution; mixing the solution; casting the solution containing the polymer and the superacid on a substrate; evaporating the solvent; and recovering the membrane. The used solvent is chemically stable in the presence of the superacid. | 01-08-2015 |
20150010848 | POLYMER ELECTROLYTE MEMBRANE HAVING GRAFT CHAINS, AND METHOD FOR PRODUCING THE SAME - Disclosed is a production method including the steps of: graft-polymerizing a first monomer onto a polymer substrate so as to form a first graft polymer; and graft-polymerizing a second monomer onto the first graft polymer so as to form a second graft polymer. The first monomer contains a polar group. The second monomer contains at least one selected from the group consisting of an ion-conducting group and a site into which an ion-conducting group can be introduced. The second monomer has a higher polarity than the first monomer. | 01-08-2015 |
20150010849 | POLYMERIZED IONIC LIQUID BLOCK COPOLYMERS AS BATTERY MEMBRANES - The present invention is directed to compositions useful for use in separators for use in lithium ion batteries, and membranes, separators, and devices derived therefrom. | 01-08-2015 |
20150064603 | FLEXIBLE ELECTRICAL DEVICES AND METHODS - Flexible electrical devices are provided that include a coated inner carbon nanotube electrode that has an exterior surface, an outer carbon nanotube electrode disposed on the exterior surface of the coated inner carbon nanotube electrode, and an overlap region in which the coated inner carbon nanotube electrode and the outer carbon nanotube electrode overlap one another, in which the device has a fiber-like geometry and first and second electrode ends. Methods are provided for fabricating an electrical component that includes a flexible electrical component having a fiber-like geometry and includes carbon nanotube electrodes. | 03-05-2015 |
20150132681 | Curable Compositions and Membranes - A curable composition comprising:
| 05-14-2015 |
20150307659 | ION CONDUCTING POLYMER COMPRISING PARTIALLY BRANCHED BLOCK COPOLYMER AND USE THEREOF - The present invention relates to an ion conducting polymer including a partially branched block copolymer; a method of preparing the same; an ion conductor including the ion conducting polymer; an electrolytic membrane including the ion conducting polymer; a membrane-electrode assembly comprising the electrolytic membrane, and a battery comprising the same; and a separation membrane for a redox flow battery including the ion conducting polymer, and a redox flow battery comprising same. Specifically, the partially branched block copolymer includes: a first block including a hydrophilic first polymer; a second block derived from a hydrophobic second polymer having two or more reactive groups respectively on its both ends, in such a way as to form branching points forming side branches on a main chain; and optionally a third block including a hydrophobic third polymer. The ion conducting polymer in the form of a partially branched block copolymer can prepare a polymer membrane having improved conductivity and superior physical properties such as tensile strength elongation at break, etc., while having the same or similar ion-exchange capacity (IEC), percentage water absorption and/or degree of dimensional change compared to conventional ion conducting polymers in the form of linear block copolymers. Because of such outstanding physical properties, the polymer membrane can be used as a membrane-electrode assembly for a fuel cell, and a redox flow battery comprising the same as a separation membrane can exhibit outstanding cell performance and maintain high discharge charge capacity retention rate even when repeatedly charged and discharged several times. | 10-29-2015 |
20150315042 | High-Performance Anion Exchange Membranes and Methods of Making Same - Anion exchange membranes may include a polymeric microporous substrate and a cross-linked anion exchange polymeric layer on the substrate. Anion exchange membranes may have a resistivity of less than about 1.5 Ohm-cm | 11-05-2015 |
20150349365 | ELECTROLYTE FOR LITHIUM AIR BATTERY AND LITHIUM AIR BATTERY INCLUDING THE SAME - An electrolyte for a lithium air battery and lithium air battery including the electrolyte are provided. The electrolyte includes a compound represented by Formula 1 and a lithium salt: | 12-03-2015 |
20160087301 | REINFORCEMENT FOR PROTON CONDUCTIVE MEMBRANE, AND PROTON CONDUCTIVE MEMBRANE COMPRISING THE SAME AND SOLID POLYMER FUEL CELL - [Problem] To provide a reinforcement for a proton conductive membrane, which can improve the acid resistance and dimension stability. | 03-24-2016 |
20160156055 | PROCESS FOR PREPARING AN ION-EXCHANGE COMPOSITE MATERIAL COMPRISING A SPECIFIC POLYMER MATRIX AND A FILLER CONSISTING OF ION-EXCHANGE PARTICLES | 06-02-2016 |
20160168346 | NOVEL VINYL ALCOHOL BASED COPOLYMER, PRODUCTION METHOD FOR SAME, AND ION EXCHANGE MEMBRANE | 06-16-2016 |
20160190626 | GRAFTED FUNCTIONAL GROUPS ON EXPANDED TETRAFLUOROETHYLENE (ePTFE) SUPPORT FOR FUEL CELL AND WATER TRANSPORT MEMBRANES - A method for forming a modified solid polymer includes a step of contacting a solid fluorinated polymer with a sodium sodium-naphthalenide solution to form a treated fluorinated solid polymer. The treated fluorinated solid polymer is contacted with carbon dioxide, sulfur dioxide, or sulfur trioxide to form a solid grafted fluorinated polymer. Characteristically, the grafted fluorinated polymer includes appended CO | 06-30-2016 |
20220140389 | Solid Electrolyte and Polymer Lithium Ion Battery - In order to overcome the problem of low ionic conductivity in the existing polymer solid electrolyte, the disclosure provides a solid electrolyte, comprising a polymer, a lithium salt and an additive, the additive is selected from an aprotic organic solvent with a carbon number lower than 10 and a relative dielectric constant higher than 3.6; the mass content of the lithium salt is 30%˜90%, and the mass content of the additive is 0.01%˜2%, based on the total mass of the solid electrolyte being 100%. Further provided is a polymer lithium ion battery comprising the solid electrolyte. According to the solid electrolyte of the disclosure, a trace amount of small molecule aprotic organic solvent with high dielectric constant is introduced as an additive, which can inhibit crystallization of the solid electrolyte, promote transmission of lithium ions in the electrolyte, and improve the ionic conductivity of the solid electrolyte at room temperature. | 05-05-2022 |