57 results about "Palladium alloy" patented technology

The utility model relates to the field of waste gas purifiers, in particular to a waste gas purification device for hydrogen-oil-gas separation, which comprises a rectangular bottom plate, an oil-gas separation box is arranged on the bottom plate, a hydrogen purification tank is fixedly connected onto the bottom plate, and a filter box is fixedly connected onto the bottom plate. When the oil-gas separation device is used, oil can be separated through the oil-gas separation box, heavy oil flows out from the lower part of the oil-gas separation box through the oil outlet pipe, the first electromagnetic valve controls the oil to flow in the oil outlet pipe, and light waste gas enters the hydrogen purification tank from the first gas outlet pipe after being preliminarily filtered by the first filter screen; the palladium alloy separation pipe in the hydrogen purification tank is used for separating hydrogen in the waste gas, and the filter box is used for further filtering the waste gas after hydrogen purification, so that the filter effect is better, air pollution is avoided, and the hydrogen in the waste gas can be recycled.

The invention relates to the field of power equipment safety monitoring, and discloses a thermal power plant generator hydrogen leakage on-line monitoring system and a detection method, and the system comprises a distributed solid palladium alloy sensor array, a multichannel impedance harmonic signal conditioning unit, an edge calculation processing terminal and an upper computer monitoring platform. The multi-channel impedance harmonic signal conditioning unit applies a composite alternating current excitation signal to the distributed solid palladium alloy sensor array; and the edge calculation processing terminal receives the digital voltage sampling data, calculates complex impedance spectrum characteristic parameters and nonlinear harmonic distortion coefficients, executes pure hydrogen locking discrimination and surface pollution correction, constructs a concentration gradient vector field and calculates space coordinates of a leakage source. Environmental interference is eliminated by analyzing nonlinear harmonic response, surface pollution influence is eliminated by using a complex impedance spectroscopy separation technology, a leakage position is inversed in combination with a countercurrent line tracking algorithm, and the problems that the generator hydrogen monitoring false alarm rate is high and positioning cannot be achieved are solved.

The application discloses a preparation method of vanadium-doped and high-hydrated mangan-chromian spinel monocrystal under high temperature and high pressure. The cylindrical mangan-chromian spinel sample is prepared by taking solid rose triangular rhombic manganese carbonate crystal, solid chromium (III) acetate hydroxide crystalline powder, solid vanadium (IV) acetylacetonate oxide powder, solid oxalic acid powder, solid bixbyite powder, solid chromium hydroxide powder and liquid dilute nitric acid as starting raw materials; two pieces of water source sheets are made from the bixbyite powder and the chromium hydroxide powder with a weight ratio of 4:1; the two pieces of water source sheets are placed at two ends of the cylindrical mangan-chromian spinel sample and then are placed into a double-capsule structure experimental sample bin with an inner layer sleeve being a graphite tube and an outer layer sleeve being a gold-palladium alloy tube; the high temperature and high pressure reaction is carried out to obtain the mangan-chromian spinel monocrystal; and the preparation technology blank of the vanadium-doped and high-hydrated mangan-chromian spinel large-particle monocrystal under the current high temperature and high pressure conditions is solved.

The invention discloses a preparation method of a copper-palladium alloy loaded nano titanium dioxide semiconductor material as a catalyst for a carbon dioxide reduction reaction. Firstly, alloy nanoparticles are generated through a sol-gel method, the morphology of the nanoparticles is controlled and agglomeration is prevented through oleylamine and oleic acid, and borane-tert-butylamine is added at the temperature of 170 DEG C to regulate and control the sizes of the generated alloy nanoparticles. A series of characterizations prove that the catalyst has a very good particle loading condition, uniform particle distribution and increased reaction active sites, and shows excellent activity when being applied to a carbon dioxide reduction reaction, when the loading capacities of copper and palladium are respectively 1%, the activity of the obtained catalyst is the highest, the methane generation rate can reach 20.23 mol / g / h, and the methane generation rate can reach 20.23 mol / g / h. The selectivity of methane reaches 100%.

The application discloses a kind of nano gold palladium alloy catalyst and its preparation method and application.In protective atmosphere, the mixed solution comprising gold precursor, palladium precursor, reducing agent and stabilizer is reduced and coprecipitation reaction, the reaction product obtained is calcined, and the nano gold palladium alloy catalyst is obtained.The catalyst is based on gold palladium mutual solution and causes electron structure reconstruction principle, adjusts gold palladium alloy peripheral electron cloud density, so as to change the adsorption of gold palladium alloy, and greatly improves the selectivity and catalytic activity of catalyst.The catalyst is used for electrocatalytic reduction CO2, and the selectivity of CO can reach more than 90%, which is much higher than that of commercial CO2 reduction catalyst, and has a wide application prospect in the field of "carbon neutralization".

The invention discloses a palladium alloy film hydrogen sensor and a hydrogen detection system and method.The sensor comprises a substrate, the substrate is provided with a first surface and a second surface which are opposite, the first surface is provided with a first hydrogen-sensitive film responding to the hydrogen concentration within a first detection range, and the second surface is provided with a second hydrogen-sensitive film responding to the hydrogen concentration within a second detection range; a second hydrogen-sensitive film which responds to the hydrogen concentration in a second detection range is arranged on the second surface, and the material components and / or microstructures of the first hydrogen-sensitive film and the second hydrogen-sensitive film are different; a temperature measuring element for measuring temperature and a heating element for heating are also arranged on the substrate; wherein the lower limit value of the first detection range is larger than the lower limit value of the second detection range and smaller than or equal to the upper limit value of the second detection range, and the upper limit value of the first detection range is larger than the upper limit value of the second detection range. According to the invention, the problems of complex design, large size, high power consumption, high cost and large error of an existing dual-sensing system are solved through integrated double-sided design of high and low measuring ranges and shared temperature compensation.

The invention discloses a preparation process of a palladium nano-film hydrogen sensor, and belongs to the field of sensor preparation. The preparation process of the palladium nano-film hydrogen sensor comprises the following steps: step 1, pre-treating an aluminum sheet, and flattening to remove a surface oxide layer; 2, carrying out primary oxidation and secondary oxidation; thirdly, the aluminum oxide layer is subjected to chambering operation, and an aluminum-based negative mold is obtained; step 4, carrying out polymerization and demolding; 5, coating the PMMA nano-column array sample through electron beam evaporation equipment to form a palladium alloy nano-film; step 6, preparing and arranging a microelectrode; 7, completing electrical connection and packaging between the microelectrode and an external circuit; the response value and the response speed of the prepared palladium nano-film hydrogen sensor are remarkably improved, and the situation that the sensor is rapidly aged and breaks down due to embrittlement, cracking or stripping caused by substrate limitation and strong lattice stress is avoided.

The application provides a gold-palladium plating solution for copper wire electroplating and an electroplating process, wherein the gold-palladium plating solution for copper wire electroplating is characterized by comprising the following raw material components: 0.3-20 g / L of water-soluble gold salt, 0.1-12 g / L of water-soluble palladium salt, 10-20 mg / L of graphene quantum dots, 20-30 g / L of ethylenediamine, 50-110 g / L of a complexing agent, 15-25 g / L of a conductive salt, 15-25 g / L of a buffering agent, 25-35 g / L of a stabilizing agent, and the rest is solvent. The electroplating process is as follows: the copper wire to be plated is placed into an electroplating tank containing the gold-palladium plating solution, an electrode plate is used as an anode, and the copper wire is used as a cathode to perform electroplating, and after the electroplating is completed, the copper wire is subjected to a post-plating treatment process. The gold-palladium plating solution and the electroplating process have the advantages of simple process, high conductivity, wear resistance, strong corrosion resistance, uniform plating layer distribution, precise size, aging resistance and the like of the obtained gold-palladium alloy plating layer.

The application discloses an electrochemical double hydrogenation three-cell system, which comprises a chemical cell, an anode cell, a cathode cell, an ion exchange film, a palladium film, and a power supply; the palladium film serves as an anode electrode, and a first nano-porous palladium alloy catalyst is coated on one side of the surface of the palladium film; a cathode electrode is arranged in the cathode cell, and the cathode electrode is a second nano-porous palladium alloy catalyst; the system generates adsorbed hydrogen by electro-oxidation of a second organic substrate in the anode cell on the surface of the palladium film through the anode electrode; the adsorbed hydrogen is transferred to the chemical cell through the characteristics of the palladium film body phase hydrogen transfer, and the hydrogenation of the organic substrate is realized on the surface of the first nano-porous palladium alloy catalyst; meanwhile, the cathode electrode generates adsorbed hydrogen by hydrolysis on the surface of the second nano-porous palladium alloy catalyst to realize the hydrogenation of the organic substrate, and finally the electrochemical double hydrogenation of the organic matter is realized; experimental results show that when the three-cell system is applied to organic hydrogenation, the faraday efficiency is as high as 200%, and meanwhile, the system has excellent stability and ultralow energy consumption.

The invention discloses a high-precision linear palladium alloy wire and a preparation method thereof and a high-precision probe, and the palladium alloy wire comprises the following components in percentage by weight: 38-43% of Pd, 25-35% of Cu, 20-32% of Ag, 0.01-2% of trace elements, and at least one selected from Zn, Ni, B, Al and In, the palladium alloy wire is obtained by carrying out at least three stages of fine drawing through a drawing assembly with the surface roughness Ra being smaller than 0.05 micrometer, the diameter is smaller than 0.8 mm, the surface roughness Ra is smaller than 0.05 micrometer, the diameter tolerance is within + / -0.002 mm, and the roundness is within 0.001 mm. According to the method, the palladium alloy wire material is comprehensively optimized in component design and processing path, so that the palladium alloy wire material still has relatively small diameter tolerance, good roundness and relatively low surface roughness under the condition of a micro diameter, and the quality uniformity and the test stability and precision of a probe array are favorably improved.

A heater assembly (100) for an aerosol generating system (200), wherein the heater assembly (100) comprises a resistance heating element (102) for vaporizing a liquid aerosol generating substrate and a porous body (104) for transporting the liquid aerosol generating substrate to the resistance heating element (102), the porous body (104) having a liquid absorption surface (104a) and a heating surface (104b), the resistance heating element (102) being located on the heating surface (104b) of the ceramic porous body (104), and the resistance heating element (102) containing a silver-palladium alloy consisting of 53 to 73 weight percent silver, 7 to 23 weight percent palladium, 1 to 7 weight percent carbon, 3 to 17 weight percent oxygen, and impurities.

The invention discloses a silver-palladium alloy nanowire and a preparation method and application thereof, and belongs to the technical field of nano alloy materials. The preparation method comprises the following steps: (1) adding an aqueous solution of hexadecyl trimethyl ammonium bromide and an aqueous solution of dopamine hydrochloride into an aqueous solution of silver nanowires, uniformly stirring, dropwise adding an aqueous solution of sodium chloropalladate, and continuously stirring until the reaction is completed to obtain a reaction product; and (2) carrying out centrifugal washing on the reaction product to obtain the silver-palladium alloy nanowire. The prepared silver-palladium alloy nanowire material is used for catalytic reduction of 4-nitrophenol, verification of a photothermal effect and glutathione level detection, so that the application of the silver-palladium alloy nanowire material in the field of catalysis is effectively expanded; and a brand new nano-alloy material and an application approach are provided for high-sensitivity and high-selectivity detection of glutathione level due to the exertion of a photothermal effect.

The invention discloses an optical fiber-palladium alloy membrane single hydrogen sensor machine control method based on temperature compensation, and relates to the technical field of online monitoring of power equipment. A hydrogen-sensitive sensing unit and a temperature compensation module are arranged in the sensor. The hydrogen-sensitive sensing unit and the temperature compensation module are arranged in parallel, are completely immersed in insulating oil, are in contact with oil flow and are used for monitoring dissolved hydrogen in situ in real time; the hydrogen-sensitive sensing unit adopts an optical fiber structure of which the side wall is plated with a palladium alloy nano-film, and is used for sensing the concentration of hydrogen dissolved in oil and generating corresponding optical signal change; the temperature compensation module adopts an optical fiber structure inert to hydrogen and is used for synchronously measuring the oil temperature of the position where the probe is located. By means of the structure and the matched control method, in-situ and real-time monitoring of the concentration of the hydrogen in the sleeve is achieved, the reliability and stability of hydrogen concentration monitoring data are greatly improved, a more accurate basis is provided for early fault diagnosis of a transformer, and the device and the method have great significance in guaranteeing safe operation of a power grid.

The application relates to the hydrogen storage technical field and particularly relates to a material for improving the CO poisoning resistance of Pd particles in the hydrogen absorption process and a preparation method thereof, which comprises the following steps: 1) preparing MOF-74(M); 2) adding a solution containing a palladium source precursor into the MOF-74(M) drop by drop, drying the Pd / MOF-74(M) after natural volatilization to obtain Pd / MOF-74(M); 3) introducing hydrogen into the Pd / MOF-74(M) to obtain Pd / MOF-74(M); and 4) obtaining the Pd / MOF-74(M) after activation. 2+ / MOF-74(M). 3) introducing hydrogen into the Pd 2+ / MOF-74(M) to obtain Pd / MOF-74(M). 4) obtaining the Pd / MOF-74(M) after activation. The prior art does not have research on improving the CO gas poisoning resistance of palladium in the hydrogen absorption process, and conventional anti-poisoning means alloying will cause problems such as palladium alloy element segregation, hydrogen absorption capacity reduction, hydrogen absorption rate reduction and the like, the inventors of the application propose that the palladium particles are combined with MOF-74(M) to form a Pd / MOF-74(M) composite structure, which can effectively improve the poisoning effect of strong toxic gas CO on palladium in the hydrogen absorption process.

The invention provides a deuterium gas generator system. The deuterium gas generator system includes an electrolytic cell and a palladium alloy purifier membrane having a surface area of no more than 10 cm < 2 >.

A circuit board includes a substrate, a conductive pad, and at least one protective layer set. The conductive pad is disposed on the substrate. The at least one protective layer set is disposed on a side of the conductive pad away from the substrate. The protective layer set includes an oxidation protection layer and a palladium alloy layer disposed in a stack, the oxidation protection layer being closer to the substrate than the palladium alloy layer. The material of the oxidation protection layer includes a nickel-based alloy.

The invention relates to the technical field of hydrogen energy storage, in particular to a leakage blocking assembly and hydrogen energy storage equipment, according to the technical scheme, the leakage blocking assembly comprises a blocking mechanism, the blocking mechanism is provided with a blocking valve, a spiral pipe, a material storage barrel, an electric heating clamp and a lithium battery which can only be opened manually, the blocking valve is of a double-sealing structure, and a valve element is coated with a hydrogen blocking coating; a self-locking mistaken touch prevention structure is further arranged; the hydrogen energy storage equipment comprises a protection mechanism, a hydrogen storage mechanism, the leakage blocking assembly and a cooling mechanism, the protection mechanism comprises an anti-collision frame and the like, the hydrogen storage mechanism comprises a hydrogen storage tank and the like, the cooling mechanism comprises a liquid cooling pump body and the like, the base is provided with a groove matched with the hydrogen storage tank, an energy absorption buffer layer is arranged on the inner wall of the anti-collision frame, and the hydrogen storage tank is lined with a graphene or palladium alloy film. And the circulating pipe is a dual-channel redundant loop and is provided with a leakage monitoring component. The problems that an existing equipment leakage blocking assembly is insufficient in sealing, treatment after leakage is not timely, and potential safety hazards are likely to be caused by environmental factors are solved.

The invention discloses a hydrogen sensor and a preparation method thereof. The hydrogen sensor comprises bonding glass; the bonding glass is bonded with the bottom of the SOI substrate to form a whole; the surface of the top of the SOI substrate is covered with a strain diaphragm; a palladium alloy film is arranged on the strain diaphragm; and a Wheatstone bridge for detecting the hydrogen concentration is integrated on the working crystal face of the strain diaphragm. The hydrogen sensor has the advantages of good selectivity, long service life, good long-term stability, high sensitivity and low measurement lower limit of a conventional palladium alloy film resistance sensor.

The present application relates to a carbon-coated nickel-palladium alloy nanoparticle composite material, a preparation method and applications thereof, wherein the composite material has a core-shell structure with a shell layer and a core, the shell layer is a graphitized carbon layer, and the core is a nickel-palladium alloy nanoparticle. The composite material has intrinsic safety, can avoid the problems of metal particle coalescence deactivation and loss, and exhibits higher catalytic activity than carbon-coated nickel nanoparticle composite materials in hydrogenation reactions.

A SAW filter package and a method for manufacturing same are provided. A surface acoustic wave (SAW) filter package comprises: a first substrate on which a SAW filter is formed; an electrode pad layer formed on the first substrate; an under bump metallurgy (UBM) layer formed on the electrode pad; a second substrate; and a metal bump electrically connecting the first substrate and the second substrate to each other, wherein the UBM layer includes an aluminum-copper alloy, and the metal bump includes a gold-palladium alloy.

The invention relates to the technical field of titanium and titanium alloy cast ingot preparation, in particular to a method for preparing a TA8 cast ingot by adopting TA9-1 residual waste, which comprises the following steps: firstly, selecting small-particle sponge titanium, scraps and risers generated by the TA9-1 titanium alloy cast ingot, stub bars generated in the forging process of the cast ingot and laths generated by hot rolling of a slab as raw materials for preparing the TA8 cast ingot; then titanium sponge and scraps are mixed, pressed and welded to form a consumable electrode A, or a material head, a dead head and a batten are welded with pure titanium in a matched mode to form a consumable electrode B; and finally, the consumable electrode A or the consumable electrode B is placed in a crucible, finished product smelting is conducted twice in a vacuum consumable electric arc furnace, and the TA8 cast ingot meeting the component requirement is obtained. According to the method, the utilization rate of the palladium-containing residual waste can be increased, the TA8 cast ingot which is uniform in component and free of segregation is successfully prepared, meanwhile, the cost for producing the titanium-palladium alloy is greatly reduced, and cyclic utilization of resources is achieved.

The invention discloses a compound semiconductor back hole device, a preparation method thereof and a transistor, and belongs to the technical field of semiconductor devices. The device comprises a compound semiconductor substrate, a back hole, one of palladium, palladium alloy, platinum or platinum alloy formed by chemical plating as a metal seed layer, and an AgX alloy layer (X is Au, Pd or Pt, and the content is 0-50%) formed by electroplating. The preparation method comprises the steps of etching the back hole, preparing the seed layer through chemical plating, electroplating the AgX alloy layer and the like. The palladium, palladium alloy, platinum or platinum alloy seed layer is utilized to effectively block diffusion of silver, the problems that the cost is high when pure gold is used traditionally and the reliability is poor when copper or silver is used traditionally are solved, the cost is greatly reduced, meanwhile, the long-term reliability of the device is guaranteed and improved, and the method is particularly suitable for the compound semiconductor radio frequency device.

A high-precision linear palladium alloy wire, its preparation method, and a high-precision probe are disclosed. The palladium alloy wire comprises, by weight percentage: Pd 38-43%, Cu 25-35%, Ag 20-32%, and trace elements 0.01-2%, selected from at least one of Zn, Ni, B, Al, and In. The palladium alloy wire is obtained by at least three stages of precision drawing using a drawing assembly with a surface roughness Ra below 0.05 μm. The wire has a diameter below 0.8 mm, a surface roughness Ra below 0.05 μm, a diameter tolerance within ±0.002 mm, and a roundness within 0.001 mm. This invention, through comprehensive optimization of the palladium alloy wire's composition design and processing path, enables it to maintain small diameter tolerance, good roundness, and low surface roughness even under micro-diameter conditions, thereby improving the quality uniformity, testing stability, and accuracy of the probe array.

The application discloses a semiconductor structure, a preparation method and a corresponding chip and product. The structure comprises a silicon-based integrated circuit and a bump structure arranged on the silicon-based integrated circuit. The bump structure comprises, in sequence, a UBM layer, a copper conductor layer, a nickel conductor layer and a gold conductor layer. A metal protective layer composed of palladium, palladium alloy, platinum or platinum alloy is coated on exposed sidewalls of the UBM layer, the copper conductor layer and the nickel conductor layer, and the protective layer does not cover the gold conductor layer. The preparation method forms stepped sidewalls through specific etching steps, and realizes selective self-growth of the protective layer on the titanium / copper / nickel sidewalls by using chemical plating based on the metal equilibrium potential difference, and the gold surface is not deposited. The application effectively solves the problems of poor welding and short circuit caused by oxidation of the copper-nickel-gold bump sidewall and oxides generated by copper diffusion, significantly improves long-term reliability, and is particularly suitable for high-end display fields such as liquid crystal drive chips.

A multilayer ceramic capacitor includes a multilayer body including dielectric layers made of ceramic and stacked together, and inner electrodes arranged along multiple interfaces between the dielectric layers, with each inner electrode extending along a respective interface. The inner electrodes include a silver / palladium alloy as a conductive material and also include at least one of (Ag0.7, Pd0.3)TiO3, NaTiO3, and EuTiO3.

The application discloses a compound semiconductor back hole device and a preparation method and a transistor thereof, and belongs to the technical field of semiconductor devices. The device comprises a compound semiconductor substrate, a back hole, one of palladium, a palladium alloy, platinum or a platinum alloy formed by chemical plating as a metal seed layer, and an AgX alloy layer (X is Au, Pd or Pt, and the content is 0-50%) formed by electroplating. The preparation method comprises the steps of etching the back hole, preparing the seed layer by chemical plating, and electroplating the AgX alloy layer. The seed layer of palladium, a palladium alloy, platinum or a platinum alloy effectively blocks the diffusion of silver, solves the problems of high cost of traditional pure gold and poor reliability of copper or silver, realizes the cost reduction while ensuring and improving the long-term reliability of the device, and is especially suitable for compound semiconductor radio frequency devices.

The invention relates to a preparation method of a silver-palladium alloy target material ceramic element electrode, which comprises the following steps: step S1, preparation of a bonding layer: firstly, preparing a ceramic substrate, adopting a nickel-chromium alloy target material for sputtering, forming a nickel-chromium bonding layer on the ceramic substrate, and controlling the sputtering power range to be 500-700W; s2, a conductive layer is manufactured, sputtering is conducted on the nickel-chromium bonding layer through a silver-palladium alloy target material, the conductive layer is formed, the sputtering power range is controlled to be 300-500 W, and an electrode is obtained; and S3, heat treatment is conducted, specifically, in the sputtering process of the step S1 or in the sputtering process of the step S2 or after the whole sputtering process is finished, heating treatment is conducted on the ceramic base body, and the heat treatment temperature range is 50-80 DEG C. The method has the advantages that through the synergistic effect of the nickel-chromium bonding layer, the silver-palladium conducting layer with specific components and the optimized heat treatment technology, the heat conductivity of the ceramic base body is improved, and the heat conductivity of the ceramic base body is improved. The preparation of the ceramic element electrode with low cost, high weldability and strong binding force is realized.

The invention relates to a high-temperature-resistant gold-palladium alloy bump packaging method, which comprises the following steps: S1, bump manufacturing: metal bumps are manufactured on the surface of a chip by adopting an electroplating mode, the metal bumps are made of gold-palladium alloy, then the chip with bumps is obtained by annealing, electroplating liquid comprises main salt, conductive salt, a film hardness regulator, a crystallization regulator and a pH regulator, and the metal bumps are prepared by adopting a high-temperature-resistant gold-palladium alloy bump packaging method; the main salt comprises potassium gold cyanide and potassium tetracyanopalladate, and the conducting salt comprises phosphate and oxalate; s2, manufacturing a bonding pad: preparing a substrate, and manufacturing the bonding pad of which the pattern is matched with that of the metal bump on the substrate; s3, inversely mounting the chip: enabling one surface of the bump of the chip to face a bonding pad on the substrate, and welding the metal bump and the bonding pad into a whole after the metal bump and the bonding pad are accurately aligned to obtain the substrate with the chip; and S4, bottom filling: filling glue is injected into a gap between the chip and the substrate along the edge of the chip, then the filling glue is baked and cured, and a product is obtained. According to the invention, the gold-palladium alloy bump with high hardness, fine grain structure and high-temperature stability is obtained.

Method for manufacturing a bipolar plate (2), comprising the following steps: - Provision of two steel half-sheets (3, 4), wherein at least one of the two half-sheets (3, 4) has an embossed structure (5), - Construction of a three-dimensional metal structure (7) from a first powder (12) of a metal different from the steel of the half-sheets (3, 4) or from at least two powders (12) of different metals, wherein at least one first powder of the at least two powders (12) is selected to be different from the steel of the half-sheets (3, 4), wherein the metal is selected from the group comprising titanium, titanium alloys, nickel, nickel alloys, chromium, chromium alloys, ferrochrome alloys, copper, copper alloys, gold, gold alloys, platinum, platinum alloys, silver, silver alloys, iridium, iridium alloys, rhodium, rhodium alloys, ruthenium, ruthenium alloys, palladium, palladium alloys, on a first half-sheet (3) of the two half-sheets (3, 4) by means of a laser (10) with green laser light and consequently a wavelength in the range of 495 nm to 550 nm, wherein the first Powder made from the metal copper is used.wherein, when using at least one further different second powder, a further laser in the form of an infrared laser is used to build up the three-dimensional metal structure (7), and , - Forming a materially bonded connection of the 3D metal structure (7) with a second half-sheet (4) of the two half-sheets (3, 4) using the same laser (10) with green laser light, wherein the half-sheets (3, 4) are joined to form a bipolar plate (2).

The application discloses a high-temperature heat treatment method of silver-palladium alloy powder, which comprises the following steps: weighing superfine silver-palladium powder and pouring it into deionized water for hydrothermal reaction, preparing a dispersant and a coating agent solution, adding the solution into a hydrothermal reaction kettle, heating and keeping the hydrothermal reaction kettle, and carrying out hydrothermal coating; then, the solution in the hydrothermal reaction kettle is centrifugally separated into solid and liquid phases, washed, dried, and crushed to obtain coated silver-palladium alloy powder; the silver-palladium alloy powder and salt are mixed according to a required proportion, and then placed in a muffle furnace and heated to a required temperature; after keeping the temperature, a high-temperature heat treatment silver-palladium alloy powder and salt mixture is obtained; finally, the mixture is washed, dried, and crushed to obtain the high-temperature heat treatment silver-palladium alloy powder. The application can prepare the silver-palladium alloy powder with a size of 1.5-2.5 microns and a tap density of 4.2-6.0 g / cm 3 .