752results about "Sealing/support means" patented technology

To make an adhesive less likely to spread beyond a desired application area when bonding a gas diffusion layer to an intermediate layer in the manufacturing stage of a fuel cell.SOLUTION: Using an adhesive coating system, an adhesive is applied on an intermediate layer in a manufacturing step of a fuel cell with the intermediate layer and gas diffusion layers on both sides of the intermediate layer. The adhesive application system has an application unit, a robot arm, and a controller. The application unit applies an adhesive when a valve is opened. The robot arm can move the application unit. The controller controls the valve and the robot arm. The controller linearly applies the adhesive to the intermediate layer from the application start point, by opening the valve before the application unit becomes located immediately on the application start point while moving the application unit by the robot arm.SELECTED DRAWING: Figure 3

The invention relates to a method for producing cell frames (10), in particular single-part or multi-part anode frames (12) and / or single-part or multi-part cathode frames (14) for individual cells (16), arranged within a stack structure (18) of an electrolyzer (20) or a fuel cell (20), wherein the following method steps are carried out: a) providing blanks (22) made of thermoplastic organic sheets (24), b) producing a single-part or multi-part anode frame (12) and / or a single-part or multi-part cathode frame (14) made of thermoplastic organic sheets (24) in a pressing device (26), and c) applying at least one sealing contour (28, 44, 48).Furthermore, the invention relates to a cell frame (10), in particular a single-part or multi-part anode and / or a single-part or multi-part cathode frame (12, 14), and to the use of the method for producing single-part or multi-part anode and / or single-part or multi-part cathode frames (12, 14).

The invention relates to a solid oxide fuel cell, and provides a solid oxide fuel cell composite support body, a preparation method thereof, a solid oxide fuel cell and a preparation method thereof, and the preparation method of the solid oxide fuel cell composite support body comprises the following steps: S1, preparing sacrificial layer slurry, support layer slurry and transition layer slurry; s2, the sacrificial layer slurry, the supporting layer slurry and the transition layer slurry are sequentially placed in a casting machine, the sacrificial layer slurry is placed at the bottom, a blank obtained after casting is subjected to phase inversion curing in a water bath, a sacrificial layer is removed, and the composite supporting body is obtained. According to the preparation method of the composite support body provided by the invention, thermal expansion matching is synergistically optimized through the phase inversion finger-shaped hole support layer and the gradient transition layer, the bonding interface is strengthened, the bonding strength and the electrochemical performance of the battery are remarkably improved, and the composite support body is suitable for vehicle-mounted and distributed energy systems.

The invention relates to a method for manufacturing a bipolar plate (10, 51) for an electrochemical cell unit (53) for converting electrochemical energy into electrical energy as a fuel cell unit (1) and / or for converting electrical energy into electrochemical energy as an electrolytic cell unit (49) having stacked electrochemical cells (52), the method comprising the steps of: providing a first plate 64) and a second plate (65), stacking the first plate (64) and the second plate (65) on top of one another such that inner surfaces (66) of the first and second plate (64, 65) lie on top of one another, applying contact forces to the first and second plates (64, 65) by means of negative pressure in a negative pressure chamber (104) relative to an ambient pressure so that, as a result of the contact forces applied by the ambient pressure, the inner surfaces (66) of the first and second plate (64, 65) lie on top of one another with an additional compression force in a contact region (68) due to the applied contact forces, producing at least one welded joint (69) between the first and second plate (64, 65) by means of a laser beam (74), forming connection channels (89) for process fluids in the first and / or second plate (64, 65), the channels opening into fluid openings (41) in the bipolar plates (10), 51) and into channels (12, 13, 14) for process fluids in the bipolar plates (10, 51), forming connection openings (93) in the first and / or second plate (64, 65) which connect the connection channels (89) to the channels (12, 13, 14) for process fluids in the bipolar plates (10, 51), the connection openings (93) being formed in the first and / or second plate (64, 65) by means of a laser beam (74).

The invention relates to the field of flow battery energy storage, and discloses a flow battery high-carbon bipolar plate and flow frame integrated packaging process and structure, and the process comprises the following steps: step 1, before welding, preparing a hot melt adhesive tape matched with the shape of a positioning groove at the inner side of a flow frame, and pasting the hot melt adhesive tape in the positioning groove; 2, a silica gel gasket is laid on the laser welding platform, and then the bipolar plate is placed and buckled with the liquid flow frame through a positioning groove; positioning the liquid flow frame by using a positioning pin on the laser welding platform; 3, a transparent heat-resistant silica gel gasket is placed in a welding area on the liquid flow frame, and pressurization is conducted through tempered glass; step 4, adjusting a laser, setting laser parameters and an advancing track according to the material size, enabling laser to penetrate through a liquid flow frame to act on the contact surface of the hot melt adhesive and the black bipolar plate, and melting the hot melt adhesive to realize welding to finish welding; 5, after welding is completed, pressure maintaining and cooling are conducted, and the integrated packaging structure is obtained.

This biaxially oriented polyarylene sulfide film contains a polyarylene sulfide resin as a main constituent component. The biaxially oriented polyarylene sulfide film has a thickness variation in the film width direction of 0.5% to 10.0% inclusive in a width of 300 mm around the central part in the width direction of the film, an orientation angle from the film longitudinal direction of more than -35° but less than 35°, not less than -90° but less than -55°, or more than 55° but not more than 90°, and a difference between the maximum value and the minimum value of the orientation angle of 0.5° to 20.0° inclusive. The present invention provides a biaxially oriented polyarylene sulfide film which is capable of suppressing warpage at the time of processing, and is excellent in terms of pressure uniformity when a large number of the biaxially oriented polyarylene sulfide films are stacked and pressurized.

A preparation method of an SOFC or SOEC with a long-life sealing interface is formed by allowing a sealing layer, a cell and a metal interconnector to be mutually contacted. In the present disclosure, with spinel as a coating material of the metal interconnector, staged thermal treatment is employed to form a high-density and strong-adhesion spinel coating to improve the endurance and entire performance of the metal interconnector. The present disclosure also optimizes the material system of the sealing layer, namely, uses the SiO2—MgO—Al2O3—SrO—V2O5 system to prepare the sealing layer, which not only improves the resistivity of the sealing layer but also increases its hardness and fracture strength. Further, under the condition of ensuring the airtightness, the coefficient of thermal expansion of the sealing layer is matched with the coefficients of thermal expansion of the metal interconnector and the cell, improving the endurance of the sealing interface.

This hot-melt adhesive sheet is provided with a base material and an adhesive layer laminated on at least one surface of the base material, the adhesive layer being formed from a hot-melt adhesive, the hot-melt adhesive comprising a crosslinked product of an adhesive composition containing a crosslinking agent, the adhesive composition comprising a polyester resin, an epoxy resin, and an isocyanate crosslinking agent, the epoxy resin contains a bisphenol-type epoxy resin and a rubber-modified epoxy resin, and the bisphenol-type epoxy resin has an epoxy equivalent weight of 450 g / eq or more and 1000 g / eq or less.

The utility model provides a laminating device for membrane electrode packaging and a fuel cell production system, and belongs to the technical field of fuel cell manufacturing. The laminating device for membrane electrode packaging comprises a laminating assembly, a frame unwinding assembly and a driving assembly, the laminating assembly comprises a steel roller and a rubber roller which are oppositely distributed, and a gap for a membrane material to pass through is formed between the steel roller and the rubber roller; the frame unwinding assembly is located on the upstream of the steel roller and used for conveying the frame to the gap through the steel roller to be attached to the base material. The driving assembly is in driving connection with the laminating assembly, so that the steel roller and the rubber roller can be close to each other or far away from each other, and the laminating device for membrane electrode packaging can effectively solve the problems that the flatness is poor and bubbles exist after the frame and the membrane electrode are laminated.

Provided is a method for disposing a buffer member in a stack case with high accuracy without damaging the buffer member due to contact between the buffer member and a side surface of a stacked cell. A structure of a fuel cell stack includes a stacked cell configured by stacking a plurality of power generation cells, a stack case in which the stacked cell is accommodated, and a buffer member disposed at an inner wall corner of the stack case. Herein, the buffer member includes a resin member disposed to face the inner wall corner, and an elastic member disposed between the resin member and an inner wall surface of the stack case. The elastic member is fitted into and held by a groove provided on the inner wall surface of the stack case.

To provide a method for manufacturing a member with rubber capable of suppressing generation of burrs of a rubber member, an adhesive sheet, and a member with rubber, in order to solve the problem of the need for a process for removing burrs.SOLUTION: A method for manufacturing a member with rubber comprises a step (S12) of contacting an adhesive sheet having a concave structure on a first surface with an uncrosslinked rubber member, and contacting the adhesive sheet on a second surface of the adhesive sheet with a substrate, and a step (S13) of heating the rubber member to bond the substrate and the rubber member.SELECTED DRAWING: Figure 1

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 invention relates to: a method for joining electrically conductive plastic parts; joined plastic parts; and an apparatus for carrying out said method.

The application relates to the technical field, in particular to a method for bonding a bipolar plate and a membrane electrode assembly and a proton exchange membrane fuel cell, which comprises the following steps: a bipolar plate, which is provided with a plurality of glue line grooves and a plurality of first through holes, is bonded with a membrane electrode assembly which comprises a membrane electrode body and a frame, the bipolar plate and the membrane electrode assembly, which are coated with glue on the upper surfaces, are sequentially adhered to a first mold through an installation piece, so that the upper surface of the bipolar plate is adhered to the lower surface of the membrane electrode assembly, and a positioning piece fixes three edges of the bipolar plate and the membrane electrode assembly; a second mold is adhered to the membrane electrode assembly to obtain a bonding unit; the bonding unit is placed into a hot pressing device for hot pressing; after the hot pressing is completed, the first and second molds are removed to obtain the bipolar plate and the membrane electrode assembly which are firmly bonded; the method can realize the close bonding of the bipolar plate and the membrane electrode assembly, the two will not be deviated during the bonding and transportation, and the internal gas and liquid can be effectively prevented from leaking.

Provided is a gasket manufacturing method, which enables an improvement in sealing performance by making the thickness of a gasket formed on a bead on a base member more uniform. The manufacturing method of a separator-integrated gasket includes a step of dispensing a gasket material, and a step of curing the gasket material dispensed on the bead 111. The bead 111 includes portions having different widths in a short direction thereof. Compared to a moving speed of a dispensing apparatus relative to the separator body 110 in a narrow portion where the width is small, the moving speed is slower in a wide portion having a larger width than the narrow portion.

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.

Systems and methods of the various embodiments may provide bifacial sealed gas diffusion electrode (GDE) assemblies. In some embodiments, a bifacial sealed gas diffusion electrode (GDE) assembly includes active electrode layers on two opposing sides of the assembly. Various embodiments may provide architecture and / or sealing methods for GDE assemblies. In various embodiments, the GDE assemblies may be for use in devices. In various embodiments, the devices may be primary or secondary batteries. In various embodiments, these devices may be useful for energy storage. For example, bifacial sealed GDE assemblies of the various embodiments may form cathode electrodes (sometimes called air electrodes) of a battery, such as a metal-air battery.

The application belongs to the technical field of liquid flow battery energy storage, and particularly relates to a full-vanadium liquid flow battery electrode frame structure which comprises an electrode frame, the electrode frame is a rectangular flat plate structure, through holes are arranged at edges close to four corners of the electrode frame, the four through holes are respectively used as electrolyte inlet and outlet through holes, a hollow rectangular middle through hole capable of accommodating a porous electrode is arranged at the middle of the rectangular flat plate of the electrode frame, electrolyte inlet and outlet main flow channels are arranged on one side surface of the electrode frame, and the electrolyte inlet and outlet main flow channels are close to the upper and lower edges of the electrode frame. In the application, PVC (polyvinyl chloride) is selected as the material of the electrode frame, the electrode frame is easy to process, electrolyte inlet and outlet auxiliary flow channels are distributed on the other two edges of the electrode frame, the electrolyte inlet and outlet auxiliary flow channels are respectively arranged in a serpentine manner on the electrode frame, the flow path of the electrolyte is greatly increased, and the flow resistance in the battery is increased.

The invention discloses a method for improving the enhancement performance of a polypropylene mineral filler for a flow battery pole frame, and particularly relates to the technical field of material processing quality control, and the method comprises the following steps: constructing a processing dynamic characteristic data set by collecting processing heat flow parameters, shear rate fluctuation values and interface energy change data in real time; under the condition that the heat flow stability and the shear stress consistency meet the condition, abnormal behavior segments are identified to form candidate analysis areas; further extracting two indexes of dynamic distribution stability and interface activation coherence, and inputting the two indexes into the prediction model to generate an enhanced fitness coefficient; according to the coefficient matching optimization path, target-oriented behavior reconstruction of the machining scheme is achieved; according to the method, the machining dynamic data are collected, the double-index representation model is constructed, and the prediction mechanism is introduced, so that the precise recognition and quantitative evaluation of the machining behavior are realized, the predefined machining scheme is matched in combination with the adaptation degree coefficient, a path optimization closed loop under data driving is formed, and the machining stability and the control precision are improved.

The present invention provides a solid polymer fuel cell sealing material which is excellent in hot water resistance and acid resistance, and in which sealing properties do not decrease even if a solid polymer fuel cell is driven for a long time. This solid polymer fuel cell sealing material comprises a carboxyl group-containing acrylonitrile‐butadiene copolymer (a) and an epoxy resin (b). It is preferable that the component (a) is a carboxy-containing acrylonitrile‐butadiene copolymer having an acrylonitrile content of 5-50% and having a carboxyl group equivalent, calculated from the number average molecular weight, of 100-20,000.

The invention relates to a method for processing and joining bipolar plates (10) which are provided with sealing seams (56) for sealing between an active area (14) and media ports (18, 20, 22, 24, 26). At least the following process steps are carried out: In process step a), a warped bipolar plate (10, 54) is provided in a processing and joining station (28); in process step b), processing tools (34, 38) and joining tools (31) are positioned against the warped bipolar plate (10, 54) such that the joining tools (31) exert a holding and joining force (64) on the warped bipolar plate (10, 54). According to process step c), the machining tools (34, 38) contact the distorted bipolar plate (10, 54) and produce a plastic deformation (68) of the distorted bipolar plate (10, 54) by means of a straightening force (62).Subsequently, in process step d), a material-bonded electrical contact (82) is created on one side of the previously straightened bipolar plate (10, 84). Following process step e), the processing and joining station (28) is opened (78, 80) and the joined and straightened bipolar plate (10, 84) is removed.

The utility model relates to the technical field of fuel cell bipolar plate preparation, and provides a forming device and a fuel cell bipolar plate sealing structure forming system. The forming device disclosed by the utility model is used for forming the sealing rubber strip on the bipolar plate for the fuel cell, and comprises a rubber injection machine, a cold runner module and a forming mold which are connected in sequence, wherein a rubber runner and a cooling liquid channel for cooling the cold runner module are arranged in the cold runner module, one end of the rubber runner is connected with a rubber injection machine, the other end of the rubber runner is connected with an injection nozzle, and the cooling liquid channel is connected with a mold temperature controller; the forming mold can define a cavity for forming the sealing rubber strip together with the bipolar plate during mold closing, and the cavity is communicated with the injection nozzle. According to the utility model, the glue material can be prevented from being solidified in the runner, the continuous injection operation can be realized, and the production efficiency can be improved.

This invention provides a technology for forming an adhesive layer with high precision at a specific location on a separator. [Solution] A method for manufacturing a fuel cell cell comprises the steps of cooling a separator for a fuel cell and applying an adhesive to the cooled separator to form an adhesive layer on the surface of the separator.

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.

A cell frame structure includes a bipolar plate, a frame body provided around an outer periphery of the bipolar plate, and a first member overlaid on the frame body, and the frame body and the first member are fixed by a joint portion.

The invention relates to a device (1) for the dielectric insulation of an object (50), in particular a hydrogen fuel cell stack, comprising a metal strip (10) for fixing the object (50), and a plurality of insulating blocks (20) arranged between the metal strip (10) and a surface of the fixed object (50) and attached at selected locations on the metal strip (10). According to the invention, the insulating blocks (20) are arranged on the metal strip (10) such that they ensure dielectric resistance only at critical surface areas of the fixed object (50). The insulating blocks (20) can be attached to the metal strip (10) by snapping or clipping them in, thus enabling easy adaptation to different design requirements and cost-effective production.

To provide a manufacturing device for a membrane electrode assembly for a fuel cell, which is capable of efficiently thermocompressing a membrane electrode assembly while suppressing thermal deformation of a frame member.SOLUTION: A manufacturing device A for a membrane electrode assembly for a fuel cell obtains a membrane electrode assembly 1 by joining a membrane electrode assembly 1 in which electrodes 3 having gas diffusion layers 31 are arranged on both sides of an electrolyte membrane 2, and a frame member 4 that is integrally joined to the outer periphery of the electrolyte membrane 2. The manufacturing device A for the membrane electrode assembly of the fuel cell includes a mold 5 having a fixed mold 52 and a movable mold 51 that is movable between a pressure-contact position and a spaced position relative to the fixed mold 52, and a moving mechanism 6 that moves the movable mold 51. The mold 5 includes heating means 7 that heats the mold 5, and humidified gas supplying means 8 that supplies humidified gas to the surface of the mold 5.SELECTED DRAWING: Figure 1

The invention discloses an electric pile assembly method of a low-temperature flow battery, the process comprises the steps of stacking and dispensing, curing, locking, electric pile air tightness testing, and finally forming a complete flow battery, and the electric pile assembled by the process has good low-temperature air tightness. According to the invention, the effect of enhancing the low-temperature air tightness is achieved for the galvanic pile assembled by the flow battery with any structure, the loss of the air tightness of the galvanic pile assembled at room temperature during cooling can be avoided, and the leakage of the galvanic pile of the flow battery in a low-temperature environment is avoided. Through actual tests, the flow battery assembled at room temperature by using the assembly process can stably operate at-40 DEG C.