223 results about "Metallic foil" patented technology

The invention relates to the related technical field of geophysical exploration instruments, in particular to a miniaturized broadband induction type magnetic field sensor. The sensor comprises a magnetic core, an induction coil, a feedback coil and a signal processing circuit. The invention is characterized in that the magnetic core is of a long rod-shaped structure formed by laminating and curing high-permeability soft magnetic strip materials, the length of the magnetic core is 580mm-640mm, the cross section of the magnetic core is a square or an equivalent circle with the side length of 11mm-15mm, and the length-diameter ratio of the magnetic core is greater than 40; the feedback coil is formed by spirally winding a metal foil belt along the magnetic core, and the metal foil belt forms a main shielding layer for restraining interference of an external electric field at the same time. By optimizing the size and the length-diameter ratio of the magnetic core and combining the integrated design of feedback and shielding functions, while the working frequency band and the low-noise performance are ensured, remarkable miniaturization and light weight of the sensor are realized, and the portability and the layout efficiency of field exploration are greatly improved.

The present invention provides an electrode body that can suppress damage to the curved portions in a structure including a first electrode sheet having a plurality of first laminated portions and a plurality of curved portions connecting adjacent first laminated portions in the lamination direction. [Solution] The electrode body comprises a first electrode portion 11 composed of a first electrode sheet including a plurality of first laminated portions 110 and a plurality of first curved portions 115, and a second electrode portion 12 having a plurality of second laminated portions 120, wherein the plurality of first laminated portions 110 and the plurality of second laminated portions 120 are arranged alternately in the lamination direction, the first electrode sheet includes a first sheet portion including a portion made of a first metal foil that constitutes the first laminated portion and a portion made of a first resin member that constitutes a plurality of first curved portions 115, and a first active material layer 112, the first laminated portion 110 having a first metal foil 111 and a first active material layer 112 on the first metal foil 111, the first active material layer 112 is not provided on the first resin member.

The invention provides a resin composition, and a prepreg and a metal foil-clad laminated board containing the same. The resin composition comprises the following components: a maleimide compound (A) containing an indane structure in a molecule and thermosetting resin (B), the maleimide compound (A) having an indane structure in the molecule has an acid value of 5.0 mgKOH / g or less. According to the present invention, the Df change is small after the cured product of the resin composition is subjected to the extreme environment thermal oxidation treatment, such that the prepared prepreg and the prepared metal foil-coated laminated board have characteristics of excellent dielectric property and extreme environment resistance, and are especially suitable for high-speed packaging.

The invention discloses a flat functional current collector and a preparation method thereof, and relates to the technical field of current collectors. The method specifically comprises the following steps that S1, an organic film and a metal foil are attached to the same release film, and interfaces in the thickness direction are in contact; an intermediate product A is obtained; s2, a metal layer is deposited on the face, away from the release film, of the intermediate product A, and an intermediate product B is obtained; and S3, removing the release film in the intermediate product B, and depositing a metal layer on the surface again to obtain the functional current collector. A continuous conducting layer can exist in the edge area of the functional current collector prepared by the method, and a tab is not required to be reserved or welded like a traditional current collector, so that the structural smoothness of the current collector is kept.

The invention provides a sodium-ion battery pole piece and a preparation method thereof, a battery cell, a battery and electric equipment, and relates to the field of sodium-ion batteries. The sodium-ion battery pole piece comprises an electrode active membrane and a tab, wherein the tab is partially embedded into the electrode active membrane; a carbon layer is also arranged on the surface of the tab embedded into the electrode active membrane; the raw materials of the electrode active film comprise an active substance, a conductive agent and a binder. The sodium ion battery pole piece is low in resource loss, a traditional multi-tab structure battery cell and a traditional pole piece need to be mixed with a solvent and need to consume a large amount of metal foil, the structure does not need to waste the solvent for mixing, the usage amount of the metal foil is greatly reduced, and in addition, due to the fact that the foil is reduced, the proportion of effective active substances is increased, and the production cost is reduced. The energy density of the battery is improved; the carbon layer on the surface of the tab embedded into the electrode active film is beneficial to improving the interface contact property and the conductivity, and the tab which is not embedded into the electrode active film has no carbon layer, can be used as a welding area and is easy to weld and process.

The invention discloses a wide metal foil strip high-speed stamping machining device which comprises a stamping assembly, the stamping assembly comprises a stamping base movably arranged in the vertical direction, and a stamping die is arranged at the bottom end of the stamping base; the guide roller assembly and the driving assembly are symmetrically arranged on the two sides of the bearing table; the guide roller assembly comprises a roller seat, a lower roller wheel and an upper roller wheel are rotatably arranged on the roller seat in a spaced mode in the vertical direction, and the upper roller wheel is movably arranged on the roller seat in the vertical direction; the driving assembly and the stamping assembly are in mechanical linkage, the characteristic that a moving seat synchronously moves along with a stamping base is utilized, a second toothed plate is in a non-meshing state in the stamping descending stage, and the stamping action is prevented from being interfered; at the key moment of upward return stroke of the stamping die, the second toothed plate is automatically triggered to be meshed with the gear, the upper roller is driven to press the foil belt downwards, and the trend that the foil belt is taken up is accurately restrained.

A handheld glass foiler apparatus (2) includes a housing (4) sized to be held by a human hand. The housing includes a thumb-receiving edge portion (6) arranged to engage a thumb of the human hand, a finger-receiving edge portion (8) arranged to engage the remaining fingers of the human hand, and a foil-dispensing portion (10). A hub (32A) within the housing is arranged to mount a roll (33) of flexible metallic foil (34) material to be dispensed out of the housing from the foil-dispensing portion of the housing. A foil material backing peeler (104) separates an adhesive backing (106) from the metallic foil material (34) within the housing and directs the adhesive backing along a waste track (108) to a waste exit (1109 of the housing. A foil dispenser, a glass alignment guide (38) and a foil crimper (40) may be disposed on the housing as a removable dispenser-guide- crimper assembly (12A, 12B, 12C). A foil cutter assembly (16) and an adjustable foil holder assembly (32) may also be provided.

Provided are a resin composition, a cured product, a prepreg, a metal foil-clad laminate, a resin composite sheet, and a printed wiring board. The resin composition contains a polymaleimide compound (A) and a compound (B) containing two or more polymerizable carbon-carbon unsaturated double bonds. The polymaleimide compound (A) contains, as reaction raw materials (1), an aromatic amine compound (a1) having one or more and three or less alkyl groups on an aromatic ring, an aromatic divinyl compound (a2) having two ethenyl groups, and maleic anhydride.

A resin composition containing a resin (A) represented by formula (T1-1), a thermoplastic elastomer (B), and a thermosetting compound (C) other than the resin (A), in which a parameter [beta] calculated by formula ([beta]) in the resin (A) is 0.20-3.00. In formula (T1-1), R represents a group containing a structural unit represented by formula (Tx). In the parentheses in formula (beta), the integral value between the corresponding chemical shift values in 1H-NMR is represented. A cured product using the resin composition, a prepreg, a metal foil-clad laminate, a resin composite sheet, a printed wiring board, and a semiconductor device.

The invention discloses a steering wheel multi-area hand separation detection device and method based on high-order intelligent driving, and relates to the technical field of intelligent driving safety. The apparatus includes a steering wheel assembly, a flexible sensor pad, and an electronic control unit (ECU). The annular holding part of the steering wheel is divided into at least three physical and signal independent sensing areas, and all the areas are arranged in a crossed mode to achieve non-blind area coverage. The flexible sensor pad is integrated between a steering wheel framework and a skin layer, and a sensor layer of the flexible sensor pad is composed of conductive fabric, metal wires or metal foils and used for detecting capacitance changes. The ECU is used for collecting signals of all the induction areas and judging the hand state of a driver through software integrating temperature compensation, signal filtering and a multi-source information fusion algorithm. According to the method, high-precision hand-leaving detection is realized based on the device. The method solves the problems of high false alarm rate and poor environmental adaptability in the prior art, and has the advantages of high detection precision, good reliability, strong process compatibility and OTA upgrade support.

This invention provides a resin composition and its application. The resin composition comprises a combination of an acenaphthene-modified polymer and a component containing C=C unsaturated bonds. The monomers of the acenaphthene-modified polymer include acenaphthene and a polyfunctional vinyl aromatic compound, and the molar percentage of acenaphthene in the monomers is 10-90%. Based on a total mass of 100 parts for the acenaphthene-modified polymer and the component containing C=C unsaturated bonds, the mass of the acenaphthene-modified polymer is 10-80 parts. This invention, through the design of the acenaphthene-modified polymer and its mutual compounding with the component containing C=C unsaturated bonds, enables the resin composition and the prepreg and metal foil laminate containing it to have high glass transition temperatures, excellent heat resistance, dielectric properties, resistance to damp heat, and filler properties, significantly improving the internal consistency of the substrate and fully meeting the performance requirements of high-transmission-rate substrates.

The utility model relates to the technical field of batteries, and discloses a current collector, a pole piece, a battery and a coating roller. The current collector includes: a metal foil; the conductive layer is arranged on at least one surface of the metal foil; the conductive layer is provided with a first coating area used for coating the insulating layer and a second coating area used for coating the active material layer, and the first coating area is located on at least one side of the second coating area in the width direction of the conductive layer; the surface density of the first coating area is smaller than that of the second coating area. According to the current collector provided by the utility model, the first coating area and the second coating area are arranged on the conducting layer, and the surface density of the first coating area is smaller than that of the second coating area, so that the cohesiveness of the insulating coating and the metal foil is enhanced, the production cost is low, the coating areas are convenient to identify, and the service life of the current collector is prolonged. The production efficiency of the battery is improved, the cost is reduced and the product quality is ensured.

The application relates to the technical field of blade battery, and provides a welding structure of a tab and a connecting sheet and a welding assembly thereof. The welding structure comprises a tab located on one side of the length direction of a pole group and a connecting sheet; the connecting sheet has a tab connecting part and a pole connecting part connected with each other; the tab connecting part comprises first clamping ears and second clamping ears which are arranged at intervals along the thickness direction of the connecting sheet; the first clamping ears and the second clamping ears are both formed by stacking at least one layer of metal foil material; the tab is clamped between the first clamping ears and the second clamping ears, and the three are connected through ultrasonic welding; meanwhile, the thickness of the tab, the thickness and the number of layers of the metal foil material are limited. The welding structure of the tab and the connecting sheet can not only improve the welding strength of the tab and the connecting sheet, the tensile and vibration impact resistance, but also improve the welding yield, so that the production line production yield and efficiency can be improved, the cost loss can be reduced, and the quality and use reliability of the battery cell can be improved.

A resin composition contains a maleimide compound (A) and a phosphorus-containing compound (B). The maleimide compound (A) includes a first maleimide compound (A1) having an alkyl group, of which a carbon number is equal to or greater than six, and / or an alkylene group, of which a carbon number is equal to or greater than six. The phosphorus-containing compound (B) includes a phosphorus-containing compound (B1) having a structure expressed by the following formula (b1), where s indicates an integer falling within a range from 1 to 10, Z indicates either an arylene group or an ester bond expressed by the following formula (b1.1), R1 to R3 each independently indicate either a hydrogen atom or a monovalent organic group, and * indicates a bond.

The utility model discloses an electromagnetic shielding film, including metal foil layer, the opposite two sides of metal foil layer are equipped with first protective layer and second protective layer respectively, first protective layer is any one in nickel chromium alloy layer, nickel zinc alloy layer, chromium zinc alloy layer, second protective layer is any one in nickel chromium alloy layer, nickel zinc alloy layer, chromium zinc alloy layer, one side of second protective layer is equipped with insulating heat conducting layer away from metal foil layer. The electromagnetic shielding film of the utility model can reduce the thickness of electromagnetic shielding film and reduce the complexity of film structure, and has excellent thermal conductivity.

To provide a resin composition and prepreg having excellent dielectric property and reliability, and a metal foil-clad laminate and printed circuit board having excellent reliability. A resin composition comprising hollow particles and a matrix resin, wherein the hollow particles comprise a shell, which contains a resin, and a hollow portion surrounded by the shell; the hollow particles have a void ratio of 50% or more; they have at least one kind of reactive group selected from the group consisting of an acidic group and an amino group on a surface thereof; and they satisfy at least one selected from the group consisting of an acidic group amount of 0.50 μmol / m2 or more and an amino group amount of 5.0 μmol / m2 or more, and wherein the matrix resin comprises a matrix resin containing a functional group which is reactive with the reactive group of the hollow particles.

The invention discloses a wire and foil integrated discharging mechanism of a winding machine, and relates to the technical field of pay-off devices for winding machines. The wire and foil integrated discharging mechanism of the winding machine comprises a support frame, a turning part and an adjusting part arranged on the turning part are sequentially installed on the left portion of the upper end face of the support frame, a plurality of adjustable guide roller parts are installed on the adjusting part, and each adjustable guide roller part is composed of two rollers which are arranged front and back and matched with each other in a sliding mode. According to the round wire or metal foil feeding device, through cooperation of the turning part and the adjusting part, the adjustable guide roller part is suitable for round wire or metal foil feeding in different working states, the tension is matched and adjusted in cooperation with the variable tensioning part, and the adjustable guide roller part is suitable for feeding of round wires or metal foils in different working states. Therefore, the different requirements for preventing the round wire from being disordered and preventing the metal foil from deviating are met in the same pay-off structure, and rapid switching of the round wire pay-off mode and the metal foil pay-off mode is achieved.

The present application provides a resin composition, a prepreg and a metal-clad laminate, the resin composition comprising triallyl cyanurate, an elastomer block copolymer and a phosphorus-containing flame retardant; the content of the triallyl cyanurate is 50-70% based on the total mass of the resin component in the resin composition being 100%. The resin composition of the present application uses triallyl cyanurate as the main component, which is combined with the elastomer block copolymer and the phosphorus-containing flame retardant, so that the board containing the same has excellent dielectric properties, heat-oxidative aging resistance, wet-heat resistance and good flame retardant properties, meeting the requirements of the high-frequency high-speed circuit board field.

The utility model provides an electroplating device which comprises an electroplating bath and an anode plate, the anode plate is immersed in an electroplating solution in the electroplating bath, and a first height difference is formed between the top of a body of the anode plate and the liquid level of the electroplating solution. According to the utility model, the anode plate is immersed in the plating solution in the electroplating bath, and the top of the body of the anode plate and the liquid level of the plating solution form the first height difference, so that the top of the body of the anode plate is slightly lower than the liquid level of the curing solution, the power receiving area of the top of the anode plate is reduced, and the current density is lower from top to bottom; the anode plate can ensure that the metal foil does not participate in the electroplating reaction when just in contact with the plating solution, electroplating is started until the metal foil is slowly immersed in the plating solution and gaps between metal teeth are fully infiltrated by the plating solution, and compared with electroplating started by directly entering a tank, the anode plate design can remarkably improve the uniformity of a curing layer.

The solid oxide cell stack has a flow distributor combined contact enabler made of pressed metal foil with flow guide and contact areas disposed between the interconnect layers and the cell layers in the stack.

A method (100) for preparing a cathode for a secondary battery, comprising mixing (102) an active material and a conductive material with an electron beam-curable prepolymer to obtain a solvent-free mixture made of the active material, the conductive material, and the prepolymer, passing the solvent-free mixture through a wet powder tableting device, polymerizing (108) the prepolymer with an electron beam to obtain a polymerized active layer on a metallic foil, pressing (110) the polymerized active layer on the metallic foil at room temperature to increase the density of the polymer active layer. A composition for preparing a cathode for a secondary battery, the composition comprising an active material, a conductive material, and an electron beam-curable prepolymer, the composition being free of solvent. A cathode made of the composition and a secondary battery comprising the cathode.

The invention discloses a multi-layer metal foil and a circuit board. The multi-layer metal foil comprises a carrier layer, a stripping layer and a functional layer which are sequentially stacked, wherein the stripping layer is used for enabling the carrier layer and the functional layer to be stripped from each other, the stripping layer comprises a nickel element, and the atomic fraction of the nickel element is 5%-40% in the total number of all atoms of the stripping layer. In the embodiment of the invention, the nickel element has higher thermal stability and lower diffusion coefficient, and during high-temperature lamination, nickel atoms are difficult to severely diffuse into the carrier layer and the functional layer, so that a firm alloying interface is prevented from being formed, and the interface atoms at high temperature are fundamentally inhibited from mutual diffusion; the stability and the consistency of the stripping force of the multi-layer metal foil at high temperature are remarkably improved, and damage or poor stripping of the functional layer caused by overlarge or fluctuating stripping force is avoided.

A method is provided for forming a circuit pattern on a substrate by a process for forming the circuit pattern, such as semi-additive process (SAP) or modified semi-additive process (mSAP), using a thin metal foil with low surface roughness.

The present invention relates to a metal foil comprising a primer coating solution containing multiple binders and a primer coating layer, and in particular to a metal foil comprising a primer coating solution containing multiple binders capable of improving bonding strength and a primer coating layer. According to one embodiment of the present invention, as a primer coating solution for forming a primer coating layer on a metal foil for a secondary battery, a primer coating solution comprising multiple binders comprising 0.01 to 10.00 wt% of a carbon material, 0.01 to 20.00 wt% of a multiple binder, and 70.00 to 99.98 wt% of a solvent, based on 100 wt% of the primer coating solution, may be provided.

The present application relates to a kind of microwave dielectric substrates, the microwave dielectric substrate includes foam matrix, first resin composition layer and metal foil are sequentially stacked on the two opposite surfaces of the foam matrix, the roughness of the side of the foam matrix is less than or equal to 20 μm, alternatively, the side of the foam matrix is coated with second resin composition layer, and the roughness of the second resin composition layer is less than or equal to 50 μm.The present application also relates to a kind of multilayer microwave dielectric substrate, including at least two layers of the microwave dielectric substrate, and the adhesive layer is arranged between adjacent two layers of the microwave dielectric substrate.The microwave dielectric substrate of the present application is low in density, and has low dielectric constant, low dielectric loss, high wave-transmitting performance and excellent mechanical properties.

The application discloses a mechanical expanding and contracting shaft for winding round nut spring ring, which is suitable for wide-to-narrow metal foil, high-end aluminum foil, electromagnetic foil, hand-tearing steel foil and solar film. In view of the problems of capsule air leakage, large radial runout of the shaft, low bending strength, small external expansion force, intermittent slipping between the winding drum and the tube and the like of the existing air bag and individual mechanical shaft, a novel structure expanding and contracting shaft composed of three mechanisms is provided. Under the action of the one-time rotation of the round nut and the secondary thrust amplification mechanism of the spring ring / tapered surface mechanism, a three-ton external expansion clamping force can be generated. After the external expansion of the winding drum and the tube, the gaps in the shaft can disappear automatically, so that the radial runout accuracy of the shaft is improved, and the bending resistance of the shaft in the suspended shaft drawing and the winding is improved. The shaft diameter adjusting mechanism before the expansion of the shaft can make the shaft be used in multiple ways. The cross pulling of the double-hook wrench can improve the external expansion force of the shaft by 50%. The shaft of the application is small in diameter and has no inflatable capsule, and can replace the shaft for thick and thin shearing machine.

A number of techniques, structures, and materials for thermally insulating a cryogenic propellant tank barrel section are presented. Thermal insulation for a tank, such as tanks for use in space flight missions, may be a dual wall vacuum jacket system where one wall is the propellant tank wall and the other wall is a metallic foil that is welded to portions of the propellant tank wall. The metallic foil may act as a vapor barrier and a vacuum seal. A structural and breathable insulation that is durable and functional in a range from cold to relatively high temperatures may be used to maintain a standoff distance between the two walls. The volume between the propellant tank wall and the metallic foil may be purged with a gas that has a liquefaction temperature greater than that of the cryogenic propellant that will be in the propellant tank during operations.

The invention discloses a lithium battery pole piece automatic stripping and metal foil collecting device, and relates to the field of lithium battery recycling, and the technical scheme is that the lithium battery pole piece automatic stripping and metal foil collecting device comprises a material crushing box, the material crushing box is of a square structure, a feeding pipe is arranged at the top of the material crushing box, a material crushing mechanism is arranged in the material crushing box, and a plurality of supporting legs are fixedly connected to the bottom of the material crushing box; two separation barrels are arranged at the bottom of the material crushing box, the two separation barrels are each of a cylindrical structure, collection mechanisms are arranged in the two separation barrels, cover plates are arranged at the tops of the two separation barrels, a plurality of ventilation grooves are formed in the outer sides of the separation barrels, the material crushing mechanism comprises a servo motor, and the servo motor is arranged at the top of the material crushing box. The device has the beneficial effects that through the structural design, the separation effect of the pole piece and the metal foil is more sufficient, the processing efficiency is greatly improved, meanwhile, manual intervention is reduced, the loss of labor cost is reduced for producers, and the production income is increased.

A resin composition which contains a resin (A) represented by formula (T1-1), a thermosetting compound (B) other than the resin (A), and an inorganic filler (C), and wherein a parameter [beta] calculated by formula ([beta]) in the resin (A) is 0.20-3.00 (inclusive). In formula (T1-1), R includes an indane skeleton. In the parentheses in formula (beta), the integral value between the corresponding chemical shift values in 1H-NMR is represented. A cured product using the resin composition, a prepreg, a metal foil-clad laminate, a resin composite sheet, a printed wiring board, and a semiconductor device.

[Problem] To provide a resin composition having excellent heat resistance and flame retardancy, a cured product, a prepreg, a metal foil-clad laminate, a single-layer resin sheet, a laminated resin sheet, and a printed wiring board. [Solution] The resin composition contains a cyanate ester compound (A) represented by formula (1), a cyclophosphazene compound (B), and an inorganic filler (C). Excellent heat resistance and dielectric properties can be obtained by the cyanate ester compound (A), and flame retardancy can be improved by the cyclophosphazene compound (B) and the inorganic filler (C).