792results about "Fuel cells grouping" patented technology

A fuel cell system configured to provide electrical power to an electrical motor producing propulsive thrust for an aircraft includes a plurality of fuel cell stacks radially arranged about a central cavity. Fuel cell plates within each of the fuel cell stacks are oriented such that major surfaces of the fuel cell plates are parallel to an airflow created by the aircraft as it moves through the air. The fuel cell system further includes a plurality of cooling devices disposed in radial cavities located between at least two fuel cell stacks in the plurality of fuel cell stacks.

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 fuel cell stack air inlet system and a vehicle. The system comprises an air compressor, a vaporization device, a liquid hydrogen bottle and a fuel cell stack, wherein a first inlet of the vaporization device is connected with the liquid hydrogen bottle, and a first outlet of the vaporization device is connected with an anode inlet of the fuel cell stack; an air outlet of the air compressor is connected with a second inlet of the vaporization device, and the air compressor is configured to heat the liquid hydrogen in the vaporization device before the fuel cell stack works so as to vaporize the liquid hydrogen. According to the fuel cell stack gas inlet system, high-temperature gas generated by the air compressor can be used for providing a heat source for liquid hydrogen vaporization, and the heat source problem of liquid hydrogen vaporization before the fuel cell stack is started is solved.

The invention discloses a bipolar plate and a fuel cell stack, the bipolar plate comprises a cooling plate and two polar plates stacked on two sides of the cooling plate, the cooling plate comprises a cooling flow channel, each polar plate comprises a flow field, the flow field comprises a reaction zone and two distribution zones located on two sides of the reaction zone, and the reaction area on at least one polar plate penetrates through the polar plate along the arrangement direction of the cooling plate and the polar plate. The reaction areas of the bipolar plate penetrate through the corresponding polar plates, the depth of the reaction areas is increased, a more stereoscopic three-dimensional air channel structure is formed, and the air channel structure has more flowing space in the depth direction, so that fluid in the reaction areas can flow in the extending direction and the depth direction of the reaction areas at the same time; and the flowing fluency of fluid in the reaction area is improved.

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.

The present invention discloses a proton exchange membrane fuel cell thermal management system and a working method thereof. The fuel cell thermal management system comprises a fuel cell stack, an ultra-thin heat spreader, a water cooling module, a thermal insulation and heating module and a control module. A slot is provided on the bipolar plate of the fuel cell stack, the heat conduction section of the ultra-thin heat spreader is embedded in the slot, and the temperature control sections of two adjacent ultra-thin heat spreaders are respectively connected to the cooling module and the thermal insulation and heating module. The fuel cell thermal management system utilizes the temperature uniformity characteristics of the ultra-thin heat spreader and the characteristics of the composite phase change material for storing latent heat, and cooperates with the control module to achieve efficient thermal management of the fuel cell stack. The fuel cell thermal management system proposed in the present invention has the advantages of reliable and flexible system, uniform and stable battery temperature distribution, and efficient and energy-saving heat regulation.

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.

The invention relates to the technical field of fuel cell locomotives, and provides a high-power multi-module hydrogen-oxygen electrochemical device for a locomotive and a control method.The control method comprises the steps that the number of started current cell stacks and the needed output power of each cell stack are taken, and the front-end pressure in a hydrogen loop is determined based on a multi-module system calibration table; the rotating speed set value of each loop execution device is calculated based on a linear interpolation method and a preset single-stack operation condition calibration table in the system, and the in-stack flow pressure of the cathode of each cell stack, the in-stack pressure of the anode of each cell stack and the actual value and the reference value of the temperature are calculated based on the linear interpolation method. And based on the difference between the actual value and the reference value, controlling the opening degree control quantity of other execution valves in each loop until the opening degree control quantity is smaller than a preset threshold value. According to the invention, the working parameters of each fuel cell stack can be independently controlled, differential adjustment of the output characteristics of each fuel cell stack can be realized on the premise of ensuring the requirement of the output power of the whole system, and the stability and reliability are high.

The invention discloses a solid oxide cell stack and a solid oxide cell stack array, a cell unit comprises a fuel cell and a spacing board sleeving the periphery of the fuel cell, and a fuel circulation area and an air circulation area are formed between the spacing board and the fuel cell; the cathode surface of the connecting plate faces the cathode of the fuel cell, and the connecting plate is provided with a first through hole corresponding to the fuel circulation area, so that a fuel channel communicated with the fuel circulation area is formed in the electric pile structure; a second through hole corresponding to the air circulation area is formed in the connecting plate, so that an air channel communicated with the air circulation area is formed in the electric pile structure; the interior of the fuel cell is communicated with the fuel channel, an air flow channel is formed in the cathode surface of the connecting plate, and the air flow channel is communicated with the air channel. The fuel channel and the air channel are integrated in the stack structure, so that the structure of the solid oxide battery stack is more compact, and integration of solid oxide battery stacks is more convenient.

The invention relates to an oxygen supply control method, device and equipment of an air supply system, a medium and a product. The method comprises the steps that the current working condition of a fuel cell engine is determined according to the obtained current output power and target power of a vehicle, the first target opening degree of an air inlet combination valve is determined, and the target rotating speed of an air compressor and the second target opening degree of a back pressure valve are determined based on the first target opening degree; determining a target opening and closing period of the drain valve and a third target opening degree of the bypass valve according to the current working condition; and the air inlet combination valve, the air compressor, the back pressure valve, the drainage valve and the bypass valve are controlled according to the first target opening degree, the target rotating speed, the second target opening degree, the target opening and closing period and the third target opening degree. Therefore, by controlling the oxygen amount supplied by the air supply system according to different working conditions, the load increasing and reducing efficiency of engine power is ensured, the utilization rate of oxygen and a catalyst is improved, the efficiency of a fuel cell engine is improved, and the cost of a fuel cell stack is integrally reduced.

The invention relates to a reversible solid oxide fuel cell-electrolytic cell (rSOC for short) system and an operation method of the reversible solid oxide fuel cell-electrolytic cell (rSOC for short) system, and particularly relates to a reversible solid oxide fuel cell-electrolytic cell (rSOC for short) system and an operation method of the reversible solid oxide fuel cell-electrolytic cell (rSOC for short) system. The system mainly comprises an rSOC stack module, a fuel preheater, a reformer, a desulfurizer, a heat exchange type steam generator, a deionized water pump, an air preheater, a fan, a combustor, a circulating fan, a stop valve, a heat tracing band, a power supply, a control system, a pipeline, a heat insulation material, a sensor and the like. According to the system, an rSOC stack module fuel tail gas circulation process is adopted, free switching of the system between an SOFC mode and an SOEC mode is achieved by adjusting switches of stop valves at different positions on a pipeline, all parts in the system are fully utilized, the process framework of the rSOC system is simplified to the maximum extent, gradient utilization of energy is achieved in the SOFC mode and the SOEC mode, and the system is suitable for large-scale popularization and application. The system energy consumption is reduced; the system is simple in structure, stable, reliable, low in energy consumption and high in operability.

This work vehicle is provided with: a fuel cell module having a fuel cell stack; at least one fuel tank accommodating fuel supplied to the fuel cell stack; a motor connected to the fuel cell module; the power output shaft is driven by the motor and is connected with a working tool; and a control device. The control device is capable of operating in a plurality of control modes. The plurality of control modes include a normal mode and an output limiting mode in which an upper limit value of power supplied from the fuel cell module to the motor is smaller than that in the normal mode. The control device changes the upper limit value of the electric power supplied to the motor in the output restriction mode in accordance with the type of the work tool connected to the power output shaft and / or the type of work performed by the work tool.

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 present invention relates to a bipolar plate for an electrochemical system, comprising a separator plate and a support element. The present invention further relates to an arrangement for an electrochemical system with the bipolar plate. The present invention also relates to an electrochemical system comprising a plurality of stacked bipolar plates or a plurality of stacked arrangements.

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 relates to the technical field of wind power, and discloses an offshore wind power transmission and energy storage integrated system and method, equipment and a storage medium, and the system comprises an offshore charging station which is used for charging the electric energy generated by an offshore wind field into an electrolyte to obtain an electrified electrolyte; the ashore energy storage power station is used for storing electric energy discharged by the electrified electrolyte to a power grid and obtaining a non-electrified electrolyte; and the electrolyte conveying ship is used for conveying the electrified electrolyte loaded from the offshore charging station to the shore energy storage power station and conveying the non-electrified electrolyte to the offshore charging station. The problem that in the prior art, the economical efficiency of electric energy transmission of offshore wind power is poor is solved.

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 hydrogen desorption performance measuring and calculating method and system of a solid hydrogen storage device and a fuel cell. The hydrogen desorption performance measuring and calculating method of the solid hydrogen storage device comprises the steps that S1, the real-time relative hydrogen storage amount HSOC of the solid hydrogen storage device is calculated according to the real-time hydrogen desorption amount integral QH2 (t); s2, according to the real-time relative hydrogen storage amount HSOC and the static available hydrogen amount eHSOP, calculating the dynamic available hydrogen amount dHSOP of the solid hydrogen storage device according to the following formula: dHSOP = f (HSOC, THSx) * eHSOP, wherein f (HSOC, THSx) is an available hydrogen desorption capacity table of the solid hydrogen storage device under the current water temperature THSx and the current real-time relative hydrogen storage amount HSOC, and the static available hydrogen amount eHSOP is the relative percentage of the designed hydrogen desorption capacity; and S3, looking up a table according to the dynamic available hydrogen amount dHSOP to obtain a dynamic hydrogen desorption capacity power limit value FCSPPwrReqLmtdHSOP. According to the method, the available hydrogen amount and the hydrogen desorption capacity of the solid hydrogen storage device are obtained through real-time calculation, and compared with a static table look-up mode, the accuracy of estimating the hydrogen desorption performance of the solid hydrogen storage device is improved.

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.