1037results about "Sealing/support means" patented technology

The invention discloses a fuel cell bipolar plate sealing element laminating process which comprises the following steps: S1, providing a laminating tool which comprises a first tool plate and a second tool plate; s2, the prefabricated sealing part is installed on the first tool plate; s3, mounting the bipolar plate coated with the adhesive on a second tool plate; s4, the first tool plate and the second tool plate are positioned and assembled, so that the bipolar plate and the prefabricated sealing element are pre-attached; and S5, pressing the prefabricated sealing element by using a first tool plate, so that the prefabricated sealing element is completely attached to the sealing groove in the bipolar plate. According to the fuel cell bipolar plate sealing element attaching process, the tool assistive device is used for positioning, the position of the prefabricated sealing element is positioned, the positioning accuracy of the position of the sealing element can be improved, and then the consistent performance of a product can be guaranteed.

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 an electrochemical cell assembly (10) comprising an end plate (14, 18), a stack (20) comprising a plurality of cell units (22) that are stacked upon one another along a stacking direction (24), and an insulating plate (32) that is interposed between the end plate and the stack, wherein the cell units each comprise a periphery (52) and a central portion (54), wherein at least one cut-out (76) is provided in the insulating plate, said cut-out extending through the insulating plate along the stacking direction, and wherein at least one inset (78) is positioned in said cut-out such that, seen along the stacking direction, the inset and the central portion overlap each other, said inset being formed from a ceramic material.

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.

The composite polar plate single battery comprises a first composite polar plate, a first sealant, a membrane electrode, a second composite polar plate, a second sealant and a third sealant, the membrane electrode is arranged between the first composite polar plate and the second composite polar plate, and the membrane electrode respectively abuts against the first composite polar plate and the second composite polar plate; the first sealant is arranged between the first composite polar plate and the membrane electrode, the second sealant is arranged between the second composite polar plate and the membrane electrode, and the third sealant is arranged at the edge of one side surface, far away from the membrane electrode, of the second composite polar plate in a surrounding manner. The invention also provides an electric pile. The composite polar plate single battery disclosed by the invention is thin in thickness, small in size, wider in application range and scene, lower in whole-cycle use cost and capable of bringing higher economic benefits. And the volume of the electric pile prepared from the single battery is correspondingly reduced, so that the defects of the traditional polar plate electric pile can be effectively improved.

The invention relates to the technical field of fuel cells, and particularly discloses a pole plate and adhesive film ring laminating device which comprises a workbench, a conveying mechanism, a cutting mechanism, a waste discharge mechanism and a laminating mechanism, and the workbench comprises a cutting workbench, a waste discharge workbench and a laminating workbench which are sequentially arranged in the first horizontal direction; the conveying mechanism is used for conveying the bottom supporting film in the first horizontal direction and enabling the adhesive film belt to sequentially slide through the cutting workbench, the waste discharging workbench and the attaching workbench. The cutting mechanism is used for cutting the adhesive film on the cutting workbench so as to obtain an adhesive film ring; the waste discharging mechanism is used for removing inner side adhesive film waste on the inner side of the adhesive film ring on the waste discharging workbench; and the laminating mechanism is used for laminating the polar plate with the adhesive film ring on the laminating worktable. When the adhesive film belt is cut, after the adhesive film is cut through, the cutting depth of the bottom supporting film is smaller than the thickness of the bottom supporting film, so that the strength of the bottom supporting film is reserved, the strength and rigidity of the adhesive film ring are improved in the transfer process of bearing the adhesive film ring, and the problems of warping and wrinkling of the adhesive film ring are effectively solved.

The present invention relates to a high-strength and stable sealing material for solid oxide fuel cells and its application. The high-strength and stable sealing material for solid oxide fuel cells includes: glass powder modified by surface polysilazane and ceramic powder modified by surface polysilazane; the content of the ceramic powder modified by surface polysilazane is 5-30 wt%; the content of the glass powder modified by surface polysilazane is ≥70 wt%.

To obtain a copolymer which has a high crosslinking rate and excellent productivity and can form a molded product with thermal aging resistance, small compression set at high and low temperatures, and improved low-temperature characteristics (low-temperature elastic recovery characteristics and Gehman torsion characteristics), a composition containing the copolymer, and the like.SOLUTION: An ethylene / α-olefin / nonconjugated polyene copolymer (A) has a structural unit derived from ethylene [A1], a structural unit derived from a C4-20 α-olefin [A2], and a structural unit derived from a nonconjugated polyene [A3] having two or more partial structures selected from the group consisting of the following general formulae (I) and (II) in total in one molecule and satisfies specific requirements. The structural unit derived from the [A2] contains a structural unit derived from 1-butene, and the structural unit derived from the [A3] contains a structural unit derived from 5-vinyl-2-norbornene.SELECTED DRAWING: None

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.

An embodiment unitized fuel cell includes a cell frame including an electricity generating assembly (EGA) bonded to a frame, the cell frame including a manifold hole disposed at an end part of the frame and a reaction gas guide part extending from the manifold hole, wherein the manifold hole is configured to allow a reaction gas to pass therethrough, and a pair of bipolar plates respectively laminated on both sides of the cell frame, the pair of bipolar plates including a first bipolar plate configured to form a flow path of the reaction gas together with the reaction gas guide part of the cell frame, the first bipolar plate having a recessed hole disposed on a part corresponding to the reaction gas guide part to expose a part of the reaction gas guide part therethrough and a second bipolar plate bonded to the cell frame.

A membrane electrode assembly (MEA) is described, comprising a membrane (4) made of a polymeric ion-conducting material arranged between two electrodes, and a flat sealing element (5) extending around the outer peripheral edge and embedded in the membrane (4) at least in one edge region. The sealing element (5) is configured such that it is anchored in the membrane (4) by means of a positive fit. Furthermore, a method for producing such an MEA (10) is described.

A method of sintering an electrochemical cell stack includes placing the electrochemical cell stack in a cage which applies a first compressive load to the electrochemical cell stack, moving the cage containing the electrochemical cell stack in a moving direction through a furnace containing a sintering region, sintering the electrochemical cell stack in the sintering region of the furnace, and applying a second compressive load greater than the first compressive load to the electrochemical cell stack during the sintering.

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 present invention relates to the technical field of hydrogen fuel cell production equipment, and specifically to a hydrogen fuel cell electrode plate dispensing and bonding device with a continuous pressure-maintaining function, comprising a continuous pressure-maintaining bonding platform arranged beside a dispensing robot and a material discharge robot, the continuous pressure-maintaining bonding platform comprising a limiting template, a linear conveyor, a pressure-maintaining limiting tool, an unlocking and adjusting device, a lifting and ejecting device, a pressure-maintaining pushing and ejecting device and a protective plate placing device; the limiting template is horizontally installed on a frame; the linear conveyor is installed below the limiting template; a plurality of pressure-maintaining limiting tools are provided and distributed on the linear conveyor, and a plurality of limiting card joints are provided on the top of the pressure-maintaining limiting tool; the lifting and ejecting device is arranged directly below the limiting template; the pressure-maintaining pushing and ejecting device is installed below the lifting and ejecting device; a plurality of unlocking and adjusting devices are provided and distributed below the limiting template; the protective plate placing device is arranged beside the limiting template; the present invention can effectively improve production efficiency and optimize the pressure-maintaining effect.

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.

Sealing arrangement (15, 16) for an electrochemical system, comprising - a frame-shaped layer (20) with a recess (23), wherein the layer (20) surrounds an electrochemically active area in a frame-shaped manner, wherein the recess (23) extends over this area and has an inner edge (26), wherein the layer (20) additionally has at least one through-opening (24, 25) with an inner edge (27, 28) for guiding a fluid through it, and - a first elastomeric sealing element (31, 33) which rests against the inner edge (27, 28) of the passage opening (24, 25) and projects laterally into the passage opening (24, 25) to seal the passage opening (24, 25) and / or - a second elastomeric sealing element (32) which rests against the inner edge (26) of the recess (23) and projects laterally into the recess (23) to seal the recess (23).

An interconnect for an electrochemical stack includes at least one of alternating air channel ribs of different length, seal gutters recessed relative to a perimeter seal surface on a fuel side of the interconnect, or fuel inlet and outlet plenums which extend perpendicular to fuel channels.

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.

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.

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.

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.