Class / Patent application number | Description | Number of patent applications / Date published |
429409000 | Treatment of the electrolyte | 48 |
20100216038 | METHOD AND SYSTEM FOR PROVIDING A FLOW THROUGH BATTERY CELL AND USES THEREOF - In one embodiment, the present invention relates generally to a method and system for providing a flow through battery cell and uses thereof. In one embodiment, the flow through battery cell includes an inlet for receiving a flow of water, a solid oxidizer coupled to said inlet for reacting with said flow of water to generate a catholyte, wherein the solid oxidizer comprises at least one of: an organic halamine, a succinimide or a hypochlorite salt, a galvanic module coupled to the solid oxidizer for receiving the catholyte and generating one or more effluents and an outlet for releasing the one or more effluents. | 08-26-2010 |
20100304229 | PROTON CONDUCTOR, ELECTROCHEMICAL CELL AND METHOD OF MANUFACTURING PROTON CONDUCTOR - A proton conductor includes a main constituent element. A part of the main constituent element is substituted by a transition metal. Valence of the transition metal is variable between valence of the main constituent element and valence lower than the valence of the main constituent element. | 12-02-2010 |
20100330439 | Electrochemical cells utilizing Taylor Vortex Flows - Electrochemical cells ( | 12-30-2010 |
20110039166 | Fuel cell system and solid polymer electrolyte film - According to the invention, a fuel cell system features a fuel cell ( | 02-17-2011 |
20110223496 | FUEL CELL STACK SYSTEM, CHANNEL STRUCTURE, FUEL CELL, ELECTRODE AND ELECTRONIC DEVICE - A fuel cell stack system is configured to uniformly supply a fuel or an electrolytic solution to each of fuel cell elements, and an electronic device using the fuel cell stack system are provided. An electrolytic solution channel allowing an electrolytic solution to flow therethrough is arranged between a fuel electrode and an oxygen electrode, and a fuel channel allowing a fuel to flow therethrough is arranged outside of the fuel electrode. The electrolytic solution channels and the fuel channels of all fuel cell elements are connected in series to one another. That is, the fuel or the electrolytic solution emitted from an outlet of the fuel channel or the electrolytic solution channel of one fuel cell element enters into an inlet of the fuel channel or the electrolytic solution channel of the next fuel cell element through a connection channel. In addition, either or both of the electrolytic solution channels and the fuel channels of some or all of the fuel cell elements may be connected in series to one another. | 09-15-2011 |
20110236774 | System for Pre-Activation of Polymer Electrolyte Fuel Cell (PEFC) - An apparatus for pre-activation of a polymer electrolyte fuel cell includes a first plate and a second plate hot pressing the unit cell stack, each having a flow channel supplying water vapor to opposing inner surfaces with the unit cell stack therebetween and including a resistor producing heat, a compressor, a temperature controller and a water vapor supplier connected to the flow channels of the plates. The apparatus for pre-activating a polymer electrolyte fuel cell may be used to prepare a prep-activated integrated body of a polymer electrolyte fuel cell membrane electrode assembly and gas diffusion layers by performing hot pressing while supplying water vapor to the unit cell stack to hydrate the polymer electrolyte membrane. And the apparatus for pre-activating a polymer electrolyte fuel cell is used to monitor physical damage of the membrane electrode assembly based on the change of degree of vacuum at a fuel electrode side and an air electrode side using, thereby detecting the leaking membrane electrode assembly in advance. | 09-29-2011 |
20110244340 | MEMBRANE ELECTRODE ASSEMBLIES WITH HYDROGEN PEROXIDE DECOMPOSITION CATALYST - A membrane electrode assembly includes an anode including a hydrogen oxidation catalyst; a cathode; a membrane disposed between the anode and the cathode; and a peroxide decomposition catalyst positioned in at least one position selected from the group consisting of a layer between the anode and the membrane and a layer between the cathode and the membrane wherein the peroxide decomposition catalyst has selectivity when exposed to hydrogen peroxide toward reactions which form benign products from the hydrogen peroxide. The peroxide decomposition catalyst can also be positioned within the membrane. Also disclosed is a power-generating fuel cell system including such a membrane electrode assembly, and a process for operating such a fuel cell system. The assembly components contain ionomer material which can be perfluorinated or non-perfluorinated, high temperature, hydrocarbon, and the like. | 10-06-2011 |
20120107702 | FUEL CELLS - A redox fuel cell comprising a catholyte solution comprising at least one non-volatile catholyte component, the catholyte solution comprising a redox mediator couple; and a regeneration zone separate from the membrane electrode assemblies of the fuel cell, the means for supplying an oxidant to the fuel cell being adapted to supply the oxidant to the regeneration zone, the volume of catholyte solution in the regeneration zone being from about 25% to about 90% of the total combined volume of catholyte solution in the regeneration zone and the cathode chambers of the fuel cell. | 05-03-2012 |
20120121994 | Membrane And Catalyst Composite For Membrane Electrode Assembly - A membrane and catalyst composite includes an ion-conducting membrane having a surface for the passage of ions, and having a near boundary layer that includes the surface and extends a distance into the membrane. A layer of electrocatalyst particles are embedded in the near boundary layer of the membrane to produce an electrode. The electrode has a porosity that allows the flow of gas through the electrode, and it has a surface roughness that increases the catalytically-active area of the electrode. | 05-17-2012 |
20120135320 | MANUFACTURING METHOD OF CATHODE ELECTRODE FOR FUEL CELLS AND CATHODE ELECTRODE FOR FUEL CELLS - A manufacturing method for a cathode electrode including: (1) mixing a polymerizable electrolyte precursor having an alkylsulfonic acid group and a group represented by (R | 05-31-2012 |
20120156573 | FUEL CELL WITH MONOLITHIC ELECTROLYTES MEMBRANE ASSEMBLY - The invention relates to a fuel cell ( | 06-21-2012 |
20120189922 | METHOD FOR OPERATING A FUEL CELL, AND A CORRESPONDING FUEL CELL - The present invention relates to a process for operating a fuel cell, especially for operating a fuel cell in which the electrolyte responsible for the proton conduction is volatile. | 07-26-2012 |
20120202129 | CROSSLINKED OR NON-CROSSLINKED AROMATIC (CO)POLYMERS AS PROTON CONDUCTORS FOR USE IN HIGH TEMPERATURE PEM FUEL CELLS - A polymer electrolyte comprising at least one aromatic polyether copolymer with main chain pyridine groups and side chain carboxylic acid or carboxylic ester or toluene or methoxy phenyl or hydroxyl phenyl or propenyl or styrene groups and/or pyridine groups, which have the ability to be covalently cross-linked. | 08-09-2012 |
20120225360 | METHOD FOR OPERATING A FUEL CELL - The present invention relates to a process for operating a fuel cell, especially for operating a fuel cell in which the electrolyte responsible for the proton conduction is volatile. | 09-06-2012 |
20120225361 | COMPOSITE PROTON CONDUCTING ELECTROLYTE WITH IMPROVED ADDITIVES FOR FUEL CELLS - Additives can be used to prepare polymer electrolyte for membrane electrode assemblies in polymer electrolyte fuel cells in order to improve both durability and performance. The additives are chemical complexes comprising certain metal and organic ligand components. | 09-06-2012 |
20120231355 | POLYMER ELECTROLYTE MEMBRANE FOR A FUEL CELL, AND METHOD FOR PREPARING SAME - The present disclosure relates to a polymer electrolyte membrane having a construction wherein an ionomer is charged in pores of a nanoweb having a high melting point, being insoluble in an organic solvent and having excellent pore characteristics, under optimum conditions. Therefore, an overall thickness of the electrolyte membrane may be reduced, thereby attaining advantages such as decrease in ohmic loss, reduction of material costs, excellent heat resistance, low thickness expansion rate which in turn prevents proton conductivity from being deteriorated over a long term. The polymer electrolyte membrane of the present invention comprises a porous nanoweb having a melting point of 300□ or more and being insoluble in an organic solvent of NMP, DMF, DMA, or DMSO at room temperature; and an ionomer which is charged in pores of the porous nanoweb and contains a hydrocarbon material soluble in the organic solvent at room temperature. | 09-13-2012 |
20120244448 | Rapid Thermal Processing for SOFC Manufacturing - Methods of heat treating at least one component of a solid oxide fuel cell (SOFC) system. The method includes heating the at least one component with a rapid thermal process, wherein the rapid thermal process heats at least a portion of the component at a rate of approximately 50° C./sec or more. | 09-27-2012 |
20120308903 | Novel Catalyst Mixtures - Catalysts that include at least one catalytically active element and one helper catalyst can be used to increase the rate or lower the overpotential of chemical reactions. The helper catalyst can simultaneously act as a director molecule, suppressing undesired reactions and thus increasing selectivity toward the desired reaction. These catalysts can be useful for a variety of chemical reactions including, in particular, the electrochemical conversion of CO | 12-06-2012 |
20130108935 | ZINC-WATER BATTERY AND SYSTEM | 05-02-2013 |
20130115533 | FILTER FOR ELECTROCHEMICAL CELL - An electrochemical cell system is configured to utilize an ionically conductive liquid flowing through a plurality of electrochemical cells. One or more hydrophilic filters for venting of gas from the cells are provided along a flow path for the ionically conductive liquid, so as to permit gasses that evolve in the ionically conductive liquid during charging or discharging to vent outside the cell system, while constraining the ionically conductive liquid within the flow path of the electrochemical cell system. | 05-09-2013 |
20130130133 | Nanofiber Supported Catalysts As Membrane Additives For Improved Fuel Cell Durability - A fuel cell membrane and a method of making the same. The membrane includes at least one non-reinforced layer and at least one reinforced layer. Both layers include a proton-conductive ionomer, while the reinforced layer additionally includes nanofiber-supported catalyst that improve mechanical and chemical durability of the membrane. The nanofiber-supported catalyst is made up of structural fibers onto which an electrocatalyst is coated, deposited or otherwise formed. The structural nanofibers give increased strength and stiffness to the layers that include them, while the electrocatalyst helps to resist electrochemical degradation to the membranes that include them. Such a membrane may form the basis of a fuel cell's membrane electrode assembly. | 05-23-2013 |
20130171529 | METHOD FOR ACTIVATING FUEL CELL - In a solid polymer electrolyte fuel cell, a potential is swept to obtain a cyclic voltammogram. The activation treatment is completed when any of conditions (a) to (c) is satisfied. (a): the peak number between 0.1 and 0.3 V increases from one to two, and inequalities of I | 07-04-2013 |
20130196238 | METHODS FOR CONTINUOUS DIRECT CARBON FUEL CELL OPERATION WITH A CIRCULATING ELECTROLYTE SLURRY - The present invention relates to methods and systems related to fuel cells, and in particular, to direct carbon fuel cells. The methods and systems relate to cleaning and removal of components utilized and produced during operation of the fuel cell, regeneration of components utilized during operation of the fuel cell, and generating power using the fuel cell. | 08-01-2013 |
20130323611 | HIGH ENERGY DENSITY FLOW BATTERIES - A nickel/zinc (Ni/Zn) flow battery employs a solid suspension charge material to maintain high charge density via stability of a suspension including a binder, conductive carbon and an electrolyte. Zinc oxide (ZnO) is employed as the anodic (anode) charge material and nickel hydroxide (Ni(OH) | 12-05-2013 |
20140004432 | MEMBRANE ELECTRODE ASSEMBLIES AND FUEL CELLS WITH LONG LIFETIME | 01-02-2014 |
20140087275 | Alkaline Membrane Fuel Cell - A fuel cell design which incorporates an alkaline membrane. The membrane is preferably made of specially selected commercial filter paper. The membrane is impregnated with a solution of water and potassium hydroxide. The membrane provides a novel, inexpensive method of introducing potassium hydroxide into the cell and containing it in the active area. Flexible carbon fiber films are used as electrodes. These are coated with a catalyzing film of nickel, iron, and/or cobalt, rather than a precious metal such as platinum. | 03-27-2014 |
20140170510 | SYSTEM AND METHOD FOR RECOVERING PERFORMANCE OF FUEL CELL - A method for recovering performance of a degraded polymer electrolyte fuel cell stack through electrode reversal. In detail, oxide films formed on the surface of platinum of a cathode is removed through an electrode reversal process that creates a potential difference between an anode and the cathode by supplying air to the anode instead of hydrogen and supplying a fuel to the cathode instead of air, thus rapidly recovering the performance of a degraded polymer electrolyte fuel cell stack. | 06-19-2014 |
20140178778 | FUEL CELL SYSTEM - The object is to suppress degradation of the durability of an electrolyte membrane caused by deformation by expansion and contraction of the electrolyte membrane. A controller | 06-26-2014 |
20140234734 | REVERSIBLE FUEL CELL AND REVERSIBLE FUEL CELL SYSTEM - A reversible fuel cell includes a positive electrode containing manganese dioxide, a negative electrode containing a hydrogen storage material, a separator disposed between the positive electrode and the negative electrode, and an electrolyte. Each of the negative electrode and the positive electrode is an electrode for power generation and is also an electrode that applies electrolysis to the electrolyte using electric current to be fed from the outside. This cell is capable of storing electric energy to be supplied at the time of overcharge by converting the electric energy into gas, and is also capable of reconverting the gas into electric energy in order to utilize the electric energy. Accordingly, there are provided a reversible fuel cell and a reversible fuel cell system each of which is excellent in energy utilization efficiency, energy density and load following capability. | 08-21-2014 |
20140242477 | ELECTROLYTE MEMBRANE FOR SOLID POLYMER-TYPE FUEL CELL, METHOD FOR PRODUCING SAME, AND SOLID POLYMER-TYPE FUEL CELL - An object of the present invention is to provide an electrolyte membrane that suppresses swelling and shrinkage caused by water retained in the electrolyte membrane for a solid polymer-type fuel cell, improves the durability of the electrolyte membrane, and obtains excellent power generation characteristics with a low resistance. The electrolyte membrane for a solid polymer-type fuel cell includes, as a reinforcing membrane, a nonwoven fabric composed of an electrolyte material and PVDF bicomponent fibers | 08-28-2014 |
20140255804 | CATHOLYTE REGENERATION - There is provided a method of regenerating a catholyte solution in a redox fuel cell, comprising the steps of: providing a redox fuel cell comprising a catholyte solution; providing droplet formation means for catholyte solution atomisation; atomising, by way of the droplet formation means or other means, the catholyte solution, thereby generating a mist of fine droplets; feeding the mist of fine droplets into an oxidant stream; regulating the oxidant stream flow so that time of flight of the droplets is sufficient to accomplish required mass transfer; reaching sufficient time of flight; and providing separation means for separating the mist of fine droplets from the oxidant stream. A regeneration zone, a fuel cell, and use of the regeneration zone are also provided. | 09-11-2014 |
20140287329 | AIR BATTERY SYSTEM - In an air battery system, a decrease in power output and an increase in inner pressure during discharge are prevented even when deposition of the reaction product increases with the discharge and the volume of the electrolytic solution increases with progress of the reaction. The air battery system includes an air battery a reservoir tank to reserve electrolytic solution to be supplied to the air battery and a reaction product sump to store reaction product produced in the air battery, the reaction product sump provided between the air battery and the reservoir tank. | 09-25-2014 |
20140295300 | Acid Resistant, Monolithic Fuel Cell Cooler Assembly - A composite plate ( | 10-02-2014 |
20140302408 | ADDITIVES FOR HYDROGEN/BROMINE CELLS - The invention relates to the use of 1-alkyl-2-alkyl pyridinium halide (e.g., 1-ethyl-2-methyl pyridinium bromide), 1-alkyl-3-alkyl pyridinium halide (e.g., 1-ethyl-3-methyl pyridinium bromide) or 1-alkyl-3-alkyl imidazolium halide (e.g., 1-butyl 3-methyl imidazolium bromide) as additives in an electrolyte used in hydrogen/bromine cells, for complexing the elemental bromine formed in such cells. The invention also provides an electrolyte comprising aqueous hydrogen bromide and said additives, and processes for operating an electrochemical flow cell selected from the group consisting of hydrogen/bromine or vanadium/bromine cells. | 10-09-2014 |
20140363747 | METHOD AND SYSTEM FOR REBALANCING ELECTROLYTES IN A REDOX FLOW BATTERY SYSTEM - A method of rebalancing electrolytes in a redox flow battery system comprises directing hydrogen gas generated on the negative side of the redox flow battery system to a catalyst surface, and fluidly contacting the hydrogen gas with an electrolyte comprising a metal ion at the catalyst surface, wherein the metal ion is chemically reduced by the hydrogen gas at the catalyst surface, and a state of charge of the electrolyte and pH of the electrolyte remain substantially balanced. | 12-11-2014 |
20140363748 | Electrode Module - An electrode module for a redox flow battery, includes an electrode ( | 12-11-2014 |
20140370402 | ELECTROLYTE GENERATION WITHIN A FUEL CELL - An exemplary method of providing an electrolyte for a fuel cell comprises including a electrolyte precursor within a fuel cell. An electrolyte is generated within the fuel cell from the precursor. An exemplary fuel cell system includes a cell stack assembly. A manifold is associated with the cell stack assembly. An electrolyte precursor is within at least one of the cell stack assembly or manifold for generating an electrolyte within a fuel cell. | 12-18-2014 |
20150017556 | REDOX FLOW BATTERY SYSTEM AND CONTROL METHOD FOR THE SAME - Disclosed are a redox flow battery system and a control method for the same. In the redox flow battery system, an oxidation number is controlled by injecting at least one of an oxidant and a reducer into at least one of a cathode side and an anode side using a measured oxidation number of the electrolyte. Therefore, even though an oxidation number balance is inevitably broken, since an initial concentration of vanadium ion, that is, an average oxidation number is maintained without a large change in the concentration, efficiency and stability of a battery may be promoted, and the oxidation number balance may be monitored in real time and the oxidation number balance may be recovered without a separate process of separating electrolytes to entirely mixing the electrolytes, or the like, that is, without stopping a function of the battery, thereby facilitating maintenance and control of performance of the battery. | 01-15-2015 |
20150024293 | GAS DIFFUSION LAYER AND MEMBRANE ELECTRODE ASSEMBLY INCLUDING GAS DIFFUSION LAYER, AND METHOD OF REGENERATING MEMBRANE ELECTRODE ASSEMBLY - Membrane electrode assembly is provided that includes an electrolyte membrane; an electrode catalytic layer including nanostructured elements having acicular micro structured support whiskers bearing acicular nanoscopic catalyst particles; and a gas diffusion layer including a nitrogen-containing compound that includes an anionic ion-exchange group. A method of regenerating the membrane electrode assembly is also provided. | 01-22-2015 |
20150037695 | FUEL CELL ELECTROLYTE REGENERATOR AND SEPARATOR - The invention concerns in one aspect, a separator ( | 02-05-2015 |
20150050570 | PRODUCTION OF VANADIUM ELECTROLYTE FOR A VANADIUM FLOW CELL - A Vanadium chemistry flow cell battery system is described. Methods of forming the electrolyte, a formulation for the electrolyte, and a flow system utilizing the electrolyte are disclosed. In some embodiments, the vanadium electrolyte is sulfate-free. | 02-19-2015 |
20150056525 | METHOD FOR PREPARING ELECTROLYTE FOR VANADIUM REDOX FLOW BATTERY USING VANADIUM OXIDE - According to the method for preparing an electrolyte for a vanadium redox flow battery, one electrolyte can be used as both the positive electrolyte and the negative electrolyte, by preparing an electrolyte having a median oxidation number of electrolytes used for the positive electrode and the negative electrode of the vanadium redox flow battery. Particularly, since the mixed electrolyte having the median oxidation number is separated into the same amounts of positive electrolyte and the negative electrolyte at the time of charging and discharging, the maximum charging and discharging effect based on the supplied capacitance can be obtained. | 02-26-2015 |
20150099199 | Battery with Heterogeneous Flow-Through Porous Electrodes - The invention discloses general apparatus and methods for electrochemical energy conversion and storage via a membraneless laminar flow battery. In a preferred embodiment, the battery includes a flow-through porous anode for receiving a fuel and a porous electrolyte channel for transporting an electrolyte adjacent to the porous anode; a flow-through porous cathode is provided for transporting an oxidant; and a porous dispersion blocker is disposed between the electrolyte channel and the porous cathode, which inhibits convective mixing while allowing molecular diffusion and mean flow. Pore structure properties are selected for tuning convective dispersion, conductivity or other macroscopic properties. Specific materials, reactants, fabrication methods, and operation methods are disclosed to achieve stable charge/discharge cycles and to optimize power density and energy density. | 04-09-2015 |
20150303504 | METHODS FOR DETERMINING AND/OR ADJUSTING REDOX-ACTIVE ELEMENT CONCENTRATIONS IN REDOX FLOW BATTERIES - Methods of determining concentrations and/or amounts of redox-active elements at each valence state in an electrolyte solution of a redox flow battery are provided. Once determined, the concentrations and/or amounts of the redox-active elements at each valence state can be used to determine side-reactions, make chemical adjustments, periodically monitor battery capacity, adjust performance, or to otherwise determine a baseline concentration of the redox-active ions for any purpose. | 10-22-2015 |
20160111744 | REDOX FLOW BATTERY AND METHOD FOR REACTIVATION THEREOF - For reactivating a redox flow battery, at least parts of the flow paths of the electrolytes of one of the half cells of the flow battery are temporarily rinsed with electrolytes of the respectively other half cell. | 04-21-2016 |
20160197370 | LIQUID COMPOSITION, PROCESS FOR ITS PRODUCTION, AND PROCESS FOR PRODUCING MEMBRANE-ELECTRODE ASSEMBLY FOR POLYMER ELECTROLYTE FUEL CELLS | 07-07-2016 |
20160204446 | ELECTRODE MATERIAL FOR FUEL ELECTRODE, SOLID ELECTROLYTE-ELECTRODE LAMINATE, METHOD FOR PRODUCING SOLID ELECTROLYTE-ELECTRODE LAMINATE, AND FUEL CELL | 07-14-2016 |
20160254558 | POLYMER ELECTROLYTE MEMBRANE FOR A FUEL CELL, METHOD FOR MANUFACTURING SAME, AND FUEL CELL COMPRISING SAME | 09-01-2016 |