539results about "Fuel cells grouping" patented technology

The present disclosure provides systems and methods for generating and storing hydrogen and electricity. The systems generally include an electrolyzer stack, a fuel cell stack operably connected to the electrolyzer stack, and a hydrogen recirculation stack operably connected to the electrolyzer stack and to the fuel cell stack.

The invention discloses a porous tubular methanol solid oxide fuel cell with a closed end, the fuel cell is a tubular solid oxide fuel cell (SOFC) stack, and the tubular SOFC stack comprises a plurality of tubular SOFC single cells; in the moving direction of fuel in the inner tube, the bottom end of the inner tube of the tubular SOFC single cell is open, the top end of the inner tube of the tubular SOFC single cell is closed, and a plurality of sections of closed areas and a plurality of sections of perforated areas are arranged on the tube wall of the inner tube and are sequentially and alternately arranged. According to the inner tube structure of the tubular SOFC single cell, the distribution uniformity of methanol on the surface of the anode of the solid oxide fuel cell can be effectively improved, so that the problem of serious carbon deposition caused by non-uniform distribution of methanol on the surface of the anode of the solid oxide fuel cell is effectively solved.

The invention discloses a coupling carbon capture marine hydrogen fuel cell thermoelectric system and a use method thereof. The coupling carbon capture marine hydrogen fuel cell thermoelectric system comprises a methanol autothermal reforming hydrogen production system, a proton exchange membrane fuel stack power generation system and a carbon capture system, the methanol self-heating reforming hydrogen production system comprises a methanol storage tank, a water storage tank, a mixer A, a heat exchanger A, a methanol reforming reactor, a self-heating reactor and a hydrogen purification module; the proton exchange membrane fuel stack power generation system comprises a heat exchanger B, a proton exchange membrane fuel cell stack, a mixer B, a heat exchanger C, an air blower and a combustion chamber; the carbon capture system comprises a mixer C, a carbonation reactor, a calcination reactor, a compressor and a carbon dioxide storage tank. According to the invention, a methanol reforming hydrogen production technology, a proton exchange membrane fuel cell and a carbon capture technology are combined, so that production and consumption of hydrogen are matched, CO2 in ship tail gas is captured, and the fuel cell system based on methanol reforming hydrogen production realizes zero carbon emission and high-efficiency energy utilization.

Provided is an electrolyte membrane with a catalyst layer, which is capable of suppressing a reduction in the output of a fuel cell while reducing the production cost. The present invention is a catalyst layer-equipped electrolyte membrane having a cathode catalyst layer on one surface of the electrolyte membrane and an anode catalyst layer on the other surface, the cathode catalyst layer and the anode catalyst layer each containing platinum, the electrolyte membrane has a transmittance ratio TR50 (TH50 / TO50) of hydrogen gas transmittance (TH50) to oxygen gas transmittance (TO50) at 65 DEG C and 50% RH of 3.0 or more, and satisfies the following condition 1 and / or condition 2. < Condition 1 > The ratio (CPt / APt) of the amount of platinum (CPt) per unit area of the cathode catalyst layer to the amount of platinum (APt) per unit area of the anode catalyst layer is 2.0 or more. < Condition 2 > The ratio TAn / TCa of the thickness (TCa) of the cathode catalyst layer to the thickness (TAn) of the anode catalyst layer is less than 0.40.

A fuel cell system capable of efficiently drain water and reducing the amount of water in exhaust gas, the fuel cell system includes a case and a fuel cell stack; the case houses the fuel cell stack; wherein the fuel cell stack is a stack of unit cells; wherein the unit cells are stacked at an angle of from 10° to 80° with respect to the horizontal direction; the fuel cell stack comprises a reaction air inlet manifold, a reaction air outlet manifold, a hydrogen inlet manifold and a hydrogen outlet manifold; the hydrogen inlet manifold is disposed above the hydrogen outlet manifold in the gravitational force direction; and wherein the reaction air inlet manifold is disposed above the reaction air outlet manifold in the gravitational force direction.

The utility model discloses a gas pre-cooling device suitable for a hydrogen fuel cell stack. The gas pre-cooling device comprises a gas system, a gas and heat-conducting oil plate heat exchanger, a heat-conducting oil system, a refrigerant and heat-conducting oil plate heat exchanger and a refrigerant system, the heat transfer oil system exchanges heat with the gas system and the refrigerant system through a gas and heat transfer oil plate heat exchanger and a refrigerant and heat transfer oil plate heat exchanger respectively, and the heat transfer oil system comprises a heat transfer oil heating system and an expansion oil tank; the expansion oil tank is connected with a heat-conducting oil inlet and outlet in the gas and heat-conducting oil plate heat exchanger through a heat-conducting oil pipeline A and a heat-conducting oil pipeline B. The expansion oil tank is connected with a heat-conducting oil inlet and outlet in the refrigerant and heat-conducting oil plate heat exchanger through a heat-conducting oil pipeline C and a heat-conducting oil pipeline D. The heat-conducting oil heating system is connected with the expansion oil tank and the heat-conducting oil pipeline D through a heat-conducting oil pipeline E and a heat-conducting oil pipeline F; the gas pre-cooling device is reasonable in structural design, small in occupied area, high in heat exchange efficiency and low in overall energy consumption.

The invention relates to the technical field of energy control, in particular to a humidity adjusting method and system of a fuel cell system and the fuel cell system. The wet side of the humidifying module of the fuel cell system is arranged between the cathode of the electric pile module and the energy recovery module, and a first regulating valve is arranged between the wet side of the humidifying module and the energy recovery module; the method comprises the following steps: acquiring current current, current impedance and a calibration impedance range corresponding to the current current of a galvanic pile module; judging the state of the electric pile module, and determining the dry and wet state of the electric pile module; based on the dry-wet state, the current current, the current impedance and a calibration impedance range corresponding to the current current, opening degree adjusting information of the first adjusting valve is determined; controlling a first regulating valve to operate so as to regulate the humidity in the galvanic pile module; the regulating valve is arranged between the wet side of the humidifying module and the energy recovery module, and the opening degree of the regulating valve is controlled, so that the size and the weight of the fuel cell system are reduced.

The invention discloses a fuel cell stack quantitative design method and device, electronic equipment and a storage medium, the method and the device are applied to the electronic equipment, and specifically, multiple operation states of a fuel cell are subjected to quantitative treatment, including a dry-wet state, a mass transfer state and a balance state of the dry-wet state and the mass transfer state, so that multiple corresponding operation state parameters are obtained; establishing characteristic functions including voltage consistency, consistency stability, optimal performance, performance stability and consistency and performance synchronism for various operation characteristics of the fuel cell; obtaining a group of operation parameter sensitivity data generated by performing simulation or bench test on the fuel cell; constructing an increment curve and a quantization equation of the operation state based on the operation parameter sensitivity data; and carrying out association and quantitative definition on each operation characteristic function based on the increment equation of the operation state to obtain a plurality of indication functions which are used for carrying out quantitative design or evaluation on the operation state or the operation characteristic of the electric pile in the design process. Through quantitative design or evaluation, various mutually coupled characteristics can be accepted and rejected in the design process, so that the scientificity and efficiency of the design are improved.

The invention discloses a hydrogen fuel stack structure, which comprises a plurality of fuel cell monomers arranged in a laminated manner, each fuel cell monomer comprises a polar plate, the front surface of each polar plate is provided with an air flow channel groove, the back surface of each polar plate is provided with a hydrogen flow channel groove, and each polar plate is provided with a plurality of cooling holes. The cooling holes penetrate through the front surface and the back surface of the polar plate, and the plurality of cooling holes are distributed in the peripheral sides of the hydrogen flow channel groove and the air flow channel groove. The hydrogen flow channel grooves and the air flow channel grooves are formed in the front faces and the back faces of the polar plates, the polar plates are directly provided with the cooling holes for cooling, the single-plate three-channel structural design is achieved, the overall structure is simple, the weight of the hydrogen fuel stack structure can be obviously reduced, and the lightweight development of the battery is facilitated.

The invention discloses a pile temperature control method and device, a storage medium and electronic equipment. The method comprises the steps that the cooling liquid temperature of cooling liquid, the cooling water pump rotating speed of a cooling water pump and the thermostat opening degree of a thermostat are obtained; a target relation is determined based on the cooling liquid temperature, the cooling water pump rotating speed and the thermostat opening degree through an online identification algorithm; based on the target relationship, determining the target thermostat opening degree of the thermostat according to the pile temperature target value and the cooling liquid temperature and the cooling water pump rotating speed which are obtained in real time at present; and controlling the thermostat based on the target thermostat opening degree so as to control the ratio of the flow of the cooling liquid, and further controlling the temperature of the cooling liquid at an electric pile inlet, so that the electric pile temperature is kept at the electric pile temperature target value. The technical problem that the temperature stability of the galvanic pile is poor is solved.

The invention discloses a liquid flow battery assembly and an electric pile. The liquid flow battery assembly is an integral assembly formed by sequentially and fixedly overlapping a flow channel frame body, a bipolar plate and a bottom plate frame body; the runner frame body is a plate-shaped frame body with a first through hole in the middle area and is provided with a through hole A, a groove is formed in a first face frame plate of the runner frame body, and a through hole B is formed in the bipolar plate; the bottom plate frame body is a plate-shaped frame body with a second through hole in the middle area, and a through hole C is formed in the bottom plate frame body; the first through hole and the second through hole are correspondingly the same or similar in size and position; the plate surface of the first through hole of the runner frame body is fixedly connected with the first panel of the bipolar plate; the second surface of the bipolar plate is fixedly connected with the plate surface of the second through hole of the bottom plate frame body, and after the runner frame body, the bipolar plate and the bottom plate frame body are sequentially overlapped, the through hole A, the through hole B and the through hole C are coaxially communicated and fixedly connected for electrolyte circulation.

Provided herein generally are methods of accounting for hydrogen (H2) in a natural gas (NG) stream, i.e., a NG / H2 blend, from a public NG utility to residential and / or business facility fuel cell (FC) systems, where the NG / H2 blend powers the FC systems and the volume of NG / H2 blend supplied to each FC systems is measured. Such measurements along with other data of the operation of the FC system, such as the volume of NG / H2 blend or an increased volume of NG, can be reported or transmitted to the public NG utility for each residential and / or business facility FC system supplied with the NG / H2 blend, where a reduced carbon footprint can be determined for the use of the NG / H2 blend by the FC system(s).

The invention discloses a solid oxide fuel cell unit and a cell stack, and the cell unit comprises a first connecting plate, a second connecting plate and a cell metal support ring connected between the first connecting plate and the second connecting plate. A concave pressing ring bearing groove and a battery bearing through groove formed in the pressing ring bearing groove are formed in one side, close to the first connecting plate, of the battery metal supporting ring; a battery piece is arranged in the battery bearing through groove, and a gap is formed between the periphery of the battery piece and the inner side wall of the battery bearing through groove; an opening of the gap is covered with an annular buffering sealing piece, the outer edge part of the annular buffering sealing piece is attached to the surface of the groove bottom of the pressing ring bearing groove, and the inner edge part of the annular buffering sealing piece is attached to the surface of the side, close to the first connecting plate, of the battery piece. A porous ceramic pressing ring is pressed between the first connecting plate and the annular buffering sealing piece in an abutting mode, so that the annular buffering sealing piece seals an opening of the gap.

An electrochemical system includes fuel cell or electrolyzer modules, and a skid supporting the modules.

The invention relates to a clamping system for a fuel cell stack comprising a plurality of disc springs and a fuel cell system having such a clamping system. According to the invention, it is provided that the disc springs are connected to one another in a materially and / or forcefully manner in a plane perpendicular to an axis of rotational symmetry extending through the center of a circle described by the disc.

The invention relates to a spacer for a solid oxide electrochemical device (200), said device (200) comprising: at least one interconnector (102,104), a solid oxide electrochemical cell (106) arranged between said interconnector (102,104) and another interconnector (102;104), andsaid spacer (202), arranged between said interconnectors (102,104), in particular, around said cell (106); characterized in that said spacer (202): comprises a layer, called a main layer, made of a ceramic matrix composite material, called a CMC material, or of a precursor of said CMC material, which is electrically insulating; andis partly, or entirely, gas-tight. It also relates to a solid oxide electrochemical device comprising such a spacer. It further relates to a solid oxide electrochemical system comprising such electrochemical devices. See Figure 2a

The application discloses a fuel cell stack high stability calculation method and a fuel cell, and relates to the technical field of fuel cell stacks. The fuel cell stack high stability calculation method comprises the following steps: determining the actual number of single cells and the actual cross-sectional area of a cell stack core; determining the critical packaging load value of the cell stack according to the actual number of single cells, the actual cross-sectional area of the cell stack core and a single cell number-cell stack core cross-sectional area-cell stack packaging load value relationship diagram; determining the actual height-width ratio of the cell stack core according to the critical packaging load value of the cell stack, the actual number of single cells and a single cell number-cell stack core height-width ratio-cell stack packaging load value relationship diagram; and determining the length, width and height of the cell stack core according to the actual cross-sectional area of the cell stack core and the actual height-width ratio of the cell stack core. The number of single cells, the cross-sectional area of the cell stack core and the height-width ratio of the cell stack core can be matched and designed to ensure the stability of the cell stack.

Disclosed is an electric energy or electrosynthesis cell having an architecture that allows the electric energy or electrosynthesis cell to be easily stacked into a cell stack. The cell includes a polymeric cell frame incorporating functional materials therein, such as an interelectrode separator, an electrode, and a metal bipolar plate. For example, the electric energy or electrosynthesis cell includes a polymeric cell frame, a first electrode and a second electrode, and an interelectrode separator disposed between the first electrode and the second electrode. A compression component is disposed adjacent to the first electrode. The compression component may be a metal bipolar plate compression component and / or a metal porous transport layer compression component. In one example, the polymeric cell frame is sealed to the metal bipolar plate by a polymer-metal bond. In another example, at least one polymeric structural positioning component positions the metal bipolar plate to the polymeric cell frame. Disclosed is a cell stack including a plurality of cells.

The present invention discloses a flow battery stack structure, sealing method, and application. The stack structure is composed of multiple battery cells, with adjacent battery cells connected by bipolar plates. Multiple through-flow holes are set at the same position on each electrode frame and bipolar plate. After multiple identical electrode frames are stacked, the flow holes form a main channel for liquid inlet or outlet. The electrode frames are provided with liquid inlet secondary flow channels and liquid outlet secondary flow channels, and the main channel is connected to the corresponding secondary flow channels. End plates are installed at both ends of the electrode frames. Liquid inlet comb grooves and liquid outlet comb grooves are set at the connection between the electrode area and the corresponding secondary flow channels, and are neatly arranged at the edges of the secondary flow channels. The present invention has a better sealing effect, more uniform and easy-to-wash liquid flow, reduces the problems of electrolyte dendrites, deposition, and blockage, thereby improving the reliability of the battery stack and enhancing applicability.

To provide a fuel cell stack capable of reducing the amount of liquid water generated by condensation of water vapor in a gas manifold.SOLUTION: In a fuel cell stack 11, a plurality of power generation cells 12 are stacked in a vertical direction Z, each power generation cell being configured to generate power by using fuel gas. Each power generation cell 12 includes a support frame 19 that supports a membrane electrode assembly 18, and a pair of separators 20 that holds the support frame 19 between the separators. In each power generation cell 12, there are formed: a fuel gas supply hole 21 forming a fuel gas supply passage 28 which extends in the vertical direction Z and through which the fuel gas flows; and a passage formation hole 22 forming a passage 29 which is adjacent to the fuel gas supply passage 28 and extends in the vertical direction Z. The fuel gas supply passage 28 and the passage 29 are connected to each other at upper ends of the fuel gas supply passage and the passage.SELECTED DRAWING: Figure 1

A fuel cell lifespan prediction device according to one embodiment may comprise: an information collection unit for measuring the voltage of each of a plurality of unit cells provided in a fuel cell stack; a cell prediction model unit for generating a cell degradation prediction model so as to define a degradation pattern of each unit cell on the basis of the voltage measured in the unit cell; a lifespan prediction unit for predicting the lifespan of each unit cell on the basis of the cell degradation prediction model, and outputting the time required for the lifespan of each unit cell to reach a failure determination condition; and a stack prediction model unit for generating an integrated degradation prediction model so as to define a degradation pattern of the fuel cell stack on the basis of the lifespan of each unit cell.

Liquid membrane cell assemblies are disclosed. In some embodiments, the liquid membrane cell assembly includes an elongate base having opposed first and second end portions and a central portion disposed therebetween. The first and second end portions each includes an elongate body, an electrolyte channel within the body, an electrolyte port fluidly connected to the electrolyte channel, a fuel channel within the body, and a fuel port fluidly connected to the fuel channel. The central portion includes spaced and opposed first and second members that connect the bases of the first and second portions and that horizontally define an open area therebetween. The liquid membrane cell assembly additionally includes an anode adjacent the first and second members, and a cathode adjacent the first and second members such that the base is disposed between the anode and the cathode. The anode and cathode vertically define the open area therebetween.

The present invention provides a catalyst coated membrane capable of inhibiting a decrease in the output of a fuel cell, and simultaneously decreasing the production cost. The present invention is a catalyst coated membrane including: an electrolyte membrane; a cathode catalyst layer arranged on one surface of the electrolyte membrane; and an anode catalyst layer arranged on the other surface of the electrolyte membrane, wherein the cathode catalyst layer and the anode catalyst layer each contain platinum; the permeability ratio TR50 (TH50 / TO50) of the hydrogen permeability (TH50) to the oxygen permeability (TO50) of said electrolyte membrane at 65°C and 50% RH is 3.0 or more; and the catalyst coated membrane satisfies the following condition 1 and / or condition 2. <condition 1> the ratio (CPt / APt) of the amount of platinum per unit area (CPt) of said cathode catalyst layer to the amount of platinum per unit area (APt) of said anode catalyst layer is 2.0 or more; <condition 2> the ratio (TAn / TCa) of the thickness (TAn) of said anode catalyst layer to the thickness (TCa) of said cathode catalyst layer is less than 0.40.

The utility model relates to the technical field of fuel cells, in particular to a hydrogen fuel cell system and a railway vehicle. The hydrogen fuel cell system is arranged in a railway vehicle provided with a cab and a machine room which are adjacent and spaced. The hydrogen fuel cell comprises a heat dissipation module, a hydrogen storage module and an electric pile module which are sequentially arranged at intervals in the length direction of the railway vehicle, the hydrogen storage module and the heat dissipation module are both arranged at the top of the machine room and communicate with each other through a first pipeline, and the electric pile module is arranged at the top of the cab and the top of the machine room; and the electric pile module is communicated with the hydrogen storage module through a second pipeline. The galvanic pile modules are arranged at the top of the cab and the top of the machine room, so that the interval between the hydrogen storage module and the heat dissipation module can be increased, meanwhile, the interval between the galvanic pile modules and the hydrogen storage module can be increased, sufficient operation space is provided for workers, and the workers can conveniently install, check, maintain and replace the three modules.

The present disclosure relates to a gas-liquid separator including a first pipe member, a second pipe member configured to communicate with the first pipe member and connected to an upper end of the first pipe member based on a gravitational direction, and a gas-liquid separation member provided in the first pipe member and the second pipe member so that droplets contained in air, which moves upward along the first pipe member and the second pipe member, come into contact with the gas-liquid separation member, thereby advantageously and effectively capturing droplets from air discharged from a fuel cell stack.

An embodiment separator for a fuel cell includes a separator body having a plate shape and including a metal material on which a plurality of manifolds is provided to introduce or discharge reaction gas or cooling water and a molding gasket surrounding an inner edge of at least one manifold selected from among the plurality of manifolds provided on the separator body, the molding gasket being configured to prevent corrosion.

To provide a fuel cell system including a heat pipe.SOLUTION: There is presented a fuel cell system (10) having a two-phase cooling system. The fuel cell system (10) includes: at least one fuel cell (12) with a coolant inlet (14) and a coolant outlet (16); an accumulator (18) that is in fluid connection with the fuel cell (12) and that is adapted to contain a coolant (20) which flows out of the fuel cell in a liquid phase in a first portion (22) and in a gas phase in a second portion (24); a condenser (26) that is in fluid connection with the accumulator(18) and that is adapted to condense and supercool the coolant; and a thermally conductive element (28) that is provided between the coolant inlet (14) and the coolant outlet (16), the thermally conductive element (28) being adapted to transfer heat from the coolant outlet to the coolant inlet.SELECTED DRAWING: Figure 1

The present invention relates to a microbial fuel cell using an electron absorber having high reduction potential, and a method of generating electric energy using same, and more specifically, to: a microbial fuel cell in which an electron absorber solution having high reduction potential is used as a reduction electrolyte, an organic solution that is an electron donor is used as an oxidization electrolyte, the reduced reduction electrolyte is regenerated through electrolysis in an electrolysis battery and re-supplied to the reduction electrolyte, a separation membrane provided with one or more O-rings in order to prevent leakage is included, hydrogen gas generated from the electrolysis can be supplied to a fuel cell to generate additional electric energy, such that a large quantity of electric power can be generated cost-efficiently, energy from an existing electricity generation system, such as solar electric energy.

Fuel cell system, comprising: a first fuel cell (4a) and a second fuel cell (4b); a first purging device (14a) and a second purging device (14b) that can purge the first fuel cell (4a) and the second fuel cell (4b) independently of each other, wherein the first purging device (14a) is a first air compressor that supplies oxygenated air as cathode gas to the first fuel cell (4a) and the second purging device (14b) is a second air compressor that supplies oxygenated air as cathode gas to the second fuel cell (4a); and a control device (2) configured to control the first and second flushing devices (14a, 14b; 29a, 29b; 26a, 26b), wherein the control device (2) is configured to to control the rotational speed of the first rinsing device (14a) and the rotational speed of the second rinsing device (14b) so that they are equal to each other, to control the purge time of the first fuel cell (4a) so that it is shorter than the purge time of the second fuel cell (4b), and to start and complete the purging of the first fuel cell (4a) within a period in which the purging of the second fuel cell (4b) is carried out, where the electrical power generation volume of the second fuel cell (4b) is smaller than the electrical power generation volume of the first fuel cell (4a), the first fuel cell (4a) and the second fuel cell (4b) are purged when an ignition state of the fuel cell system is changed to an OFF state, and the control device (2) is configured to purge the first fuel cell (4a) with an amount of consumed electrical power that is less than the amount of electrical power consumed by purging the second fuel cell (4b).

The fuel cell system includes at least a pair of cells (110a, 110b), each cell including a metal substrate (120a, 120b) having first and second sides and a porous region (124) providing fluid communication between the sides, and a planar cell chemistry layer (111, 112, 113) including a fuel electrode layer, an electrolyte layer, and an air electrode layer, and coated or deposited over and supported by the porous region (124) on a first side thereof, the metal substrate (120a, 120b) including a metal electrode layer, an electrolyte layer, and an air electrode layer. A metal-supported planar cell device (200) in which the metal substrates (120) are arranged in a stacked configuration with the cell chemistry layers (111, 112, 113) of the metal substrates (120) overlying one another such that both of their first sides or both of their second sides face inward in a spaced apart opposing relationship, whereby the inwardly facing sides define a common first fluid volume (140) for one of fuel or oxidant between the metal substrates (120).