1512 results about "Metal foil" patented technology

A semiconductor device with a metal foil and a sealing resin material. Metal foil is formed integrally with the sealing resin layer.

The invention discloses a refined disassembly system and method for a battery monomer, and belongs to the technical field of battery disassembly. The production line comprises a perforating device, a cutting device, a cutting device, a scattering device, a sorting device, a color sorting device, a defluorination device and a powder removal device. The method comprises the following steps: perforating a battery to discharge electrolyte, separating a shell from an inner core by a cutting device, cutting the inner core by a cutting device, scattering by a scattering device, sorting a diaphragm by a sorting device, sorting positive and negative electrode materials by a color sorting device, and respectively removing fluorine by a defluorination device. And finally, the metal foil and the powder are separated through the powder removing device, the damage degree of the crystal structure of the black powder can be reduced, the black powder and the metal fragments are efficiently separated according to the density difference, the metal foil and the black powder are not likely to be excessively mixed, the separation purity is high, the secondary treatment situation is reduced, efficient separation and recycling of the electrode material are achieved, and the production cost is reduced. And the comprehensive function and the resource utilization rate of the system are obviously improved.

The invention relates to the technical field of electronic information materials, in particular to a metal foil with a carrier, a metal-clad laminated board and a circuit board. The invention discloses a metal foil with a carrier, a metal-clad laminated board and a circuit board, the metal foil with the carrier is characterized in that the metal foil with the carrier comprises a carrier layer and a functional layer, the functional layer is arranged on one side face of the carrier layer, and the functional layer is arranged on the other side face of the carrier layer. And the ratio of the thermal expansion coefficient a of the functional layer to the thermal expansion coefficient b of the carrier layer satisfies 40% < = a / b < = 120%. The thermal expansion coefficient ratio of the carrier layer to the functional layer of the metal foil with the carrier is in a proper range, so that the stripping stability of the metal foil with the carrier during use can be improved, and the processing efficiency is improved.

The invention provides an ultrathin VC vapor chamber which comprises a VC lower cover and a VC upper cover arranged on the VC lower cover, the VC upper cover is arranged in a zigzag mode, and a plurality of steam cavities arranged at intervals are arranged between the VC upper cover and the VC lower cover which are arranged in a zigzag mode, the ultrathin VC vapor chamber is characterized in that a metal foil capillary structure is arranged between the VC upper cover and the VC lower cover, and the lower portion of the metal foil capillary structure is attached to the VC lower cover. The upper portion of the metal foil capillary structure is attached to a part of the VC upper cover, the metal foil capillary structure comprises a metal foil and evaporation backflow holes which penetrate through the metal foil and are distributed in the metal foil in an array mode, the metal foil is provided with a hollowed-out supporting structure, and the hollowed-out supporting structure and the evaporation backflow holes are arranged in a staggered mode. Compared with a traditional copper net, the metal foil capillary structure facilitates development of ultrathin VC, the metal foil capillary structure has better capillary force, the VC can achieve higher heat dissipation power, and meanwhile the metal foil capillary structure is lower in cost compared with the traditional copper net.

The invention belongs to the technical field of multifunctional radomes, and particularly relates to a frequency-agile absorption and transmission integrated electromagnetic metasurface and radome, the frequency-agile absorption and transmission integrated electromagnetic metasurface comprises a plurality of basic units in periodic array distribution, and each basic unit comprises a wave transmission layer and a wave absorption layer which are oppositely arranged; the wave-transparent layer comprises a wave-transparent dielectric substrate, a wave-transparent metal foil layer I and a wave-transparent metal foil layer II, wherein the wave-transparent metal foil layer I and the wave-transparent metal foil layer II are arranged on the two sides of the wave-transparent dielectric substrate. The wave-transparent metal foil layer I comprises a plurality of metal spiral lines, the wave-transparent metal foil layer II comprises a metal foil, and the metal foil is provided with an annular gap and rectangular gaps distributed around the annular gap; the wave-absorbing layer comprises a wave-absorbing dielectric substrate, and a wave-absorbing metal foil layer I and a wave-absorbing metal foil layer II which are arranged on two sides of the wave-absorbing dielectric substrate; according to the invention, the wave-transparent communication and wave-absorbing isolation functions are realized at the same time, the wave-absorbing frequency band agility function is realized, and the wave-absorbing effect is better.

The invention relates to a metal foil surface defect visual detection device and a detection method thereof.The device comprises a supporting mechanism, an uncoiling mechanism, a driving mechanism and a detection mechanism, the coiled metal foil can be uncoiled and surface defects of the metal foil can be detected, the uncoiling mechanism is composed of a plurality of rotating roller bodies, a horizontal uncoiling section is formed, and the driving mechanism is driven by the driving mechanism; the detection mechanism comprises an RGB camera, an infrared camera, a laser scanning head or an ultrasonic detection head, is positioned on the upper side and the lower side of the uncoiling mechanism and is used for acquiring surface image data of the metal foil in real time; the method and the device can improve the detection precision and the detection efficiency of the surface defects of the metal foil, are suitable for quality control in automatic production, can provide reliable data support for subsequent defect analysis and repair, further provide an implementation scheme based on electronic equipment and computer programs, and are suitable for popularization and application. And the intelligent level of the detection process is further improved.

The present invention addresses the problem of providing a method and a punch for punching an amorphous metal foil with which a greater reaction force is prevented from acting on the punch in a short period of time, a great impact is prevented from being imparted to a press machine, and loud processing sound or great vibrations are prevented from being produced, during punching of an amorphous metal foil in press working.　The present invention provides a method for punching an amorphous metal foil that is punched into a prescribed shape by a press machine, the method including a step for placing the amorphous metal foil on a die, and a step for punching out, by using a punch, a portion of the amorphous metal foil placed on the die, the distal-end surface of the punch being an inclined surface that is inclined in one direction with respect to a plane orthogonal to the direction of movement of the punch. The present invention also provides a punch applied in punching of an amorphous metal foil that is punched into a prescribed shape by a press machine, the punch being configured such that the distal-end surface of the punch is an inclined surface inclined in one direction with respect to a plane orthogonal to the direction of movement of the punch.

The utility model discloses a composite current collector, a pole piece and a battery. The composite current collector comprises a macromolecule layer and metal layers deposited on the two side faces of the macromolecule layer, and the two metal layers are connected at at least one end of the macromolecule layer so that the two metal layers can be conducted. The end face of the composite current collector is provided with the metal layer, and the metal layer is connected with the metal layers on the upper and lower surfaces of the polymer layer, so that the metal layers on the upper and lower surfaces of the current collector are electronically conducted. After the battery pole piece is prepared, a metal foil tab does not need to be subjected to transfer welding, and an external tab can be directly welded.

The present invention discloses an automatic hot stamping processing device and process for cigarette case wrapping paper, relating to the technical field of hot stamping equipment. An automatic hot stamping processing device for cigarette case wrapping paper is included, which comprises a machine table frame and a hot stamping machine body. The hot stamping machine body is controlled to lift through an externally connected hydraulic cylinder. It further includes: an automatic hot stamping structure, which is arranged on the machine table frame and is used for automatically hot stamping the cigarette case wrapping paper; a positioning component, which is arranged on the automatic hot stamping structure and is used for preventing the cigarette case wrapping paper from moving after hot stamping. Among them, the automatic hot stamping structure includes a transport frame, which is arranged in the middle of the machine table frame. A conveyor belt is arranged inside the transport frame. A first winding machine and a second winding machine are arranged on one side of the machine table frame. A driving roller and a first round roller are rotatably connected to one side of the machine table frame. By separating the metal foil from the cigarette case wrapping paper when positioning the cigarette case wrapping paper, wrinkles on the cigarette case wrapping paper are avoided.

The invention provides a water-resistant carbon-coated current collector as well as a preparation method and application thereof, and relates to the technical field of batteries. Specifically, the method comprises the following steps: preparing a core-shell type composite binder; the core layer is obtained by polymerizing raw materials including a first monomer, a second monomer and a cross-linking monomer, and the shell layer is obtained by polymerizing raw materials including a third monomer, a fourth monomer and a functional monomer; preparing conductive slurry containing a conductive material and a dispersing agent, fully mixing the conductive slurry with the core-shell type composite binder, and adjusting the pH value to obtain pre-coating slurry; and coating the surface of a metal foil with the carbon-coated current collector, and carrying out heat treatment to obtain the carbon-coated current collector. The binder disclosed by the invention has high water resistance, can effectively prevent a carbon-coated coating from falling off when an active coating is coated, and improves the stripping force of the active coating, meanwhile, the core-shell structure of the binder prevents the surface of a conductive agent from being excessively wrapped, and specific functional groups form strong interface bonding, so that the carbon-coated coating and an interface are compounded more tightly, and the service life of the conductive agent is prolonged. And the coating resistance of the carbon coating layer and the diaphragm resistance of the coated pole piece can be effectively reduced.

The invention discloses a composite heat insulation coating structure and method for a high-temperature component of an unmanned aerial vehicle. The structure comprises a heat insulation base material layer made of a high silica glass fiber material and a reflecting layer made of metal foil, and the heat insulation base material layer and the reflecting layer are compounded into a whole. The reflecting layer is used for reflecting heat radiation, and the heat insulation base material layer is used for blocking heat conduction. The problems that a traditional ceramic fiber material is prone to embrittlement and short in service life in a high-temperature vibration environment are effectively solved through a double heat insulation mechanism of reflection-blocking. The coating structure has excellent heat-resistant cyclicity, good flexibility and process adaptability, can perfectly fit special-shaped structures such as a bulkhead and a tail cover of the unmanned aerial vehicle, and remarkably improves the reliability and prolongs the service life of a thermal management system of the unmanned aerial vehicle.

The invention discloses a vapor chamber and a manufacturing method thereof. The vapor chamber comprises an upper cover, a lower cover and a metal foil, the lower cover is connected with the upper cover, a containing cavity is formed between the lower cover and the upper cover, and a cooling medium is contained in the containing cavity; the metal foil is arranged in the containing cavity, a condensation cavity is formed between the metal foil and the upper cover, an evaporation cavity is formed between the metal foil and the lower cover, and a plurality of capillary holes are distributed in the metal foil and communicated with the condensation cavity and the evaporation cavity. According to the vapor chamber, the metal foil is arranged between the upper cover and the lower cover, backflow of a liquefied cold area medium in the condensation cavity into the evaporation cavity is achieved through the capillary holes formed in the metal foil, and the overall thickness of the whole vapor chamber can be set to be smaller due to the arrangement of the metal foil.

The invention belongs to the field of secondary battery manufacturing, and particularly relates to a composite foil current collector welding method.The composite current collector comprises an upper aluminum conducting layer, a middle high-molecular polymer layer and a lower aluminum conducting layer, and the welding method comprises the following steps that S1, micropore machining is carried out on a tab area of the composite current collector, forming a through micropore array; s2, laying a first pure metal foil on the upper surface of the tab area, and laying a second pure metal foil on the lower surface of the tab area; and S3, welding the tab area on which the pure metal foil is laid, so that the first pure metal foil, the upper aluminum conductive layer, the lower aluminum conductive layer and the second pure metal foil form through metallurgical bonding at the position of the micropore. According to the composite foil current collector welding method, ultrasonic energy is highly concentrated on a metal interface at the edge of a micropore, local metallurgical connection is achieved, overall heat input is low, hot melting and carbonization of a middle high-molecular polymer layer are effectively avoided, and an ultrathin metal layer is protected against heat damage.

Method for manufacturing an electrical storage device, comprising the following steps: Arranging a metal foil extending outwards from an electrode plate between a first metal element and a second metal element; and Causing an ultrasonic vibration to act on a plurality of points of action from the side of the first metal element in order to bond the metal foil to the first metal element and the second metal element, whereby the first metal element has a Vickers hardness of at least 40 Hv and not more than 75 Hv.

The purpose of the present invention to provide: a novel phosphorus compound; a method for synthesizing the compound; a flame retardant containing the compound; and a resin composition containing the compound and a resin component. The purpose of the present invention is to additionally provide: a prepreg using the resin composition; a resin-equipped metal foil; a thermosetting resin film; a metal-clad laminated board; a printed wiring board; and an adhesive. The present invention relates to a phosphorus compound represented by chemical formula (I), a synthesis method, and a use thereof. (In the formula, the R1's are the same or different and represent a hydrogen atom, a C1 to C10 alkyl group, a C2 to C10 alkenyl group, a C2 to C10 alkynyl group, or an aryl group optionally substituted with a C1 to C10 alkyl group or phenyl group; R2 represents a C1 to C10 alkyl group, a C2 to C10 alkenyl group, a C2 to C10 alkynyl group, or an aryl group optionally substituted with a C1 to C10 alkyl group or phenyl group, and when there are a plurality of R2's, the R2's may be the same or different; Y1 represents a phenylene group optionally substituted with a C1 to C10 alkyl group, a naphthylene group, or a group indicated by formula (A); and the n's are the same or different and represent an integer of 0-3.) (In the formula, the R3's are the same or different and represent a hydrogen atom, a C1 to C10 alkyl group, a C2 to C10 alkenyl group, a C2 to C10 alkynyl group, or an aryl group optionally substituted with a C1 to C10 alkyl group or phenyl group; and Y2 represents a single bond, a C1 to C15 alkylene group optionally substituted with a phenyl group, a C5 to C15 cycloalkylene group, a C5 to C15 cycloalkylidene group optionally substituted with a C1 to c10 alkyl group, a phenylene group, an adamantane-1,3-ylene group, an adamantane-2-ylidene group, an oxygen atom, a sulfur atom, a sulfinyl group, a sulfonyl group, or a fluorene-9-ylidene group.)

The invention relates to a lithium ion battery multilayer metal foil and dissimilar metal connection optimization method in the technical field of new energy, and the method comprises the following steps: constructing a geometric model of multilayer metal foil and dissimilar metal connection by adopting a finite element simulation method according to initial interface bonding parameters, and applying a preset load condition in a simulation environment, determining an atomic-scale combined stress distribution diagram; for a heat balance state formed by metallurgical bonding, quantitative indexes, including shear strength and tensile strength, of connection point strength are extracted from a finite element simulation result, and a preliminary optimization data set of high-energy-density battery connection is obtained; and outputting a final metallurgical bonding formation parameter set according to a judgment result of a connection point strength stability threshold value, and applying the final metallurgical bonding formation parameter set to simulation verification of multi-layer metal foil connection so as to obtain an interface optimization scheme for improving the battery performance.

According to the manufacturing method, through a Roll to Roll continuous production mode, traditional 19 procedures are reduced to 12 procedures, the production speed is increased to 5 m / min, the dielectric constant of a composite PI film doped with nanometer aluminum oxide is smaller than or equal to 3.2 and is reduced by 15% compared with that of a traditional PI film, a micro-arc oxidation insulating layer of copper / magnesium alloy foil is combined, the signal loss of the antenna in the frequency band of 28-300 GHz is reduced by 30%, and the antenna performance is improved. The sheet resistance of the graphene / silver nanowire composite conductive adhesive is smaller than or equal to 0.1 omega / sq, the bending life is larger than or equal to 100,000 times, the performance is improved by 10 times compared with that of traditional silver paste, the long-term dynamic use requirement of wearable equipment is met, no chemical etching liquid is used in the whole process, waste is subjected to magnetic separation and low-temperature pyrolysis, waste discharge is reduced by 90% compared with a traditional process, and the graphene / silver nanowire composite conductive adhesive is environmentally friendly. The carbon-based particles generated through pyrolysis meet the RoHS standard and can be directly used for 3D printing consumables, the antenna produced through the method can adapt to the leading-edge fields of 6G base stations, flexible intelligent watches, implantable medical sensors and the like, and the technology of the Internet of Things and high-frequency communication is promoted.

The present invention relates to a resin composition characterized by a low degree of thermal expansion, a low degree of dielectricity, and a high degree of thermal resistance, and a prepreg, a metal foil laminate, a laminated sheet, and a printed circuit board comprising same. The resin composition comprises a polyphenylene oxide-based resin, a hollow inorganic filler having a porosity of 60-90%, a fluorine resin filler, and a dispersant.

The invention discloses a preparation method and application of a composite metal foil. The method comprises the following steps: preparing a high polymer material into a continuous film; carrying out surface pretreatment on the continuous film; carrying out chemical plating on the pretreated film to form a metal conductive layer; and after the metal conductive layer is formed, electrochemically depositing a metal layer to obtain the composite metal foil. According to the composite metal foil prepared according to the technical scheme, the plating layer is high in binding force, more uniform and high in conductivity; the preparation method is simple to operate, short in technological process, low in production cost and high in production efficiency.

The invention discloses a clamping system for nanosecond laser welding of metal foil and film-like plastic, and relates to the field of laser welding. It comprises two supporting bases, on which clamping assemblies are respectively provided, and further comprises a quartz glass pad and a high-transmittance quartz glass sheet. The quartz glass pad, the metal foil, the film-like plastic, and the high-transmittance quartz glass sheet are fixed together by two clamping assemblies. The invention has a simple structure and a reasonable design. By arranging a quartz glass pad and a high-transmittance quartz glass sheet, the invention not only ensures the fixation between the metal foil and the film-like plastic, but also makes the metal foil and the film-like plastic completely spread and in close contact. The clamping force is controlled by the clamping bolts and pressure sensors on both sides, which is convenient for adjusting the welding effect. The integration of the base and the clamping device enables the entire fixture to be stably installed and easy to operate, improves the stability during the welding process, ensures the accuracy of welding, improves the quality of welding, and has good practicality.

An object is to provide a resin composition having a high permittivity and a low dissipation factor, and having excellent heat resistance and moisture absorption and heat resistance, and suitably used for producing an insulation layer of a printed wiring board, and a prepreg, a resin sheet, a laminate, a metal foil-clad laminate, and a printed wiring board obtainable by using the resin composition. The resin composition of the present invention contains (A) a surface coated titanium oxide in which a mass reduction rate in heating from 30° C. to 300° C. at a heating rate of 10° C. / min is 0.5 mass % or less, and (B) a thermosetting compound.

A sheet-shaped member 440 including a resin insulating layer 441 and a metal foil 442 is used. The sheet-shaped member 440 is deformed following warpage or step difference in a second conductor plate 431 and a fourth conductor plate 433, and therefore, the thickness of the resin insulating layer 441 can be set to a constant thickness of, for example, 120 μm capable of securing insulation properties. By plastically deforming a metal-based heat conduction member 450 having a thickness of, for example, 120 μm interposed between the sheet-shaped member 440 and a cooling member 340, the thickness of the metal-based heat conduction member 450 is changed to absorb the warpage or step difference generated in the second conductor plate 431 and the fourth conductor plate 433. This results in remarkable improvement in heat dissipation as compared with a case where the conductor plates are brought into contact with the cooling member 340 via an insulating layer alone.

The utility model relates to a battery piece, a battery string and a photovoltaic module, and belongs to the technical field of solar cells. The battery piece comprises a battery body and a metal foil, and the backlight surface of the battery body is provided with a back surface grid line; the metal foil is connected to the back surface grid line; a layer of metal foil is arranged on the backlight side of the cell body to connect the grid lines, so that lower line loss can be realized under the condition that an aluminum back surface field is thinner, even no aluminum back surface field exists or a small amount of silver paste is used, further, less cutting in the preparation process can be realized, the loss of a cell piece is favorably reduced, and meanwhile, warping or cost increase is not caused.

The invention discloses a metal-intermetallic compound composite material with a brick mud structure and a preparation method, and belongs to the field of bionic composite materials. According to the method, metal foil and Al foil are subjected to surface pretreatment and then subjected to ultrasonic cleaning, the metal foil and the Al foil are stacked according to the mode that the metal foil and the Al foil serve as units, a vacuum hot pressing sintering device is used for pre-sintering the metal foil and the Al foil to obtain a metal-intermetallic compound layered composite material, then the metal-intermetallic compound layered composite material is cut into a specific size and subjected to secondary sintering in a mold, and a high-temperature and high-pressure method is adopted for secondary sintering. The invention aims to obtain the brick mud structure metal-intermetallic compound layered composite material with a compact structure. Wherein the intermetallic compound serves as a'brick 'and is uniformly distributed in the metal, the metal serves as a'mud' and serves as an integral tissue framework, the material is closer to a natural shell structure in structure, and the mechanical property of the material is far better than that of a traditional composite material of a layered structure. According to the method, the comprehensive mechanical property of the traditional layered composite material can be effectively improved.

A system for drying a battery electrode coating includes two laser diode arrays and a laser module. Each laser diode array emits multi-beam laser radiation to an edge region including a respective edge of a coating lane deposited on a metal foil. The laser module emits a diverging laser beam to an interior area of the coating lane between the two edges. The intensity distribution of the diverging laser beam at the coating lane spans a gap in the widthwise dimension between respective intensity distributions of the multi-beam laser radiation from the two laser diode arrays. The use of laser diode arrays to perform the edge drying allows for tailoring the intensity distribution of the combined laser irradiation to dry the coating lane without over-drying and delaminating the edges. The use of a single, diverging laser beam in the interior area allows for optimizing affordability and energy efficiency.

The disclosure relates to a multi-layered laminate comprising multiple metal foil layers and multiple dielectric (insulating) layers. At least one of the insulating layers includes a copolymer containing diisoalkenylarene (DIAEA) and divinylarene (DVA) units, optionally combined with a filler and / or another dielectric polymer. Another insulating layer includes another dielectric polymer distinct from the DIAEA-DVA copolymer. At least one copolymer-containing insulating layer is positioned adjacent to a metal foil layer. This copolymer layer enhances thermal stability at elevated temperatures and provides improved electrical performance such as reduced dielectric constant (Dk) and dissipation factor (Df) along with excellent processability.

Provided is a styrene resin, a hydroxy resin, a method for producing a hydroxy resin, a method for producing a styrene resin, a resin composition containing a styrene resin, a cured product, a prepreg, a metal foil-clad laminate, a resin composite sheet, a printed wiring board, and a semiconductor device. Provided is a hydroxy resin represented by Formula (T-OH) and having a number average molecular weight of 850 to 4000. In Formula (T-OH), R is a group containing structural units represented by Formula (Tx-OH).

The present invention provides a metal foil for an electrolytic capacitor, said metal foil including a valve metal and having two main surface regions. At least one of the main surface regions has a plurality of recesses extending in a line shape, and the depth of the recesses is between 4 μm and 58 μm inclusive, or the projected area ratio of the recesses in the main surface regions is between 8% and 45% inclusive.

There is described herein a computer-implemented method for determining operating parameters of a planar flow caster in a metal foil fabrication process. The planar flow caster has a melt distribution receptacle through which a molten metal is extruded, and a cooling surface for cooling and solidifying the molten metal as the molten metal flows onto the cooling surface. The method includes capturing visual data of the melt distribution receptacle, molten metal and cooling surface of the planar flow caster during operation, and applying at least one machine learning model to the visual data to determine one or more operating parameters of the metal foil fabrication process.

The application provides a micron-thick graphite film and a growth method thereof. A substance with high carbon content is dispersed in an organic solvent and coated on a metal foil, and after drying, a carbon film / metal foil is obtained; or the substance with high carbon content is made into a sheet and placed on a metal foil, and a carbon film / metal foil is obtained; in a protective atmosphere, a current is applied to the sample, the carbon film / metal foil is heated by using the Joule effect of the current, and the power supply is stopped, so that a micron-thick graphite film is obtained on the surface of the metal foil. The graphite film is prepared by using the dissolution-precipitation of carbon in the metal substrate in the process of high-temperature-low-temperature temperature change. Since the metal substrate has an epitaxial relationship with the graphite lattice, the graphite film with AB stacking can be directly precipitated, so that the graphitization of carbon can be realized at a lower temperature. The reaction system is radiated and heated by using the Joule heating characteristic of the current, the heating efficiency is effectively improved, the temperature is raised from room temperature to the growth temperature in a few seconds, the influence of the side reaction is reduced, and the raw material utilization rate is improved.