79results about How to "Affect conductivity" patented technology

The invention provides a conductive fabric and a preparation method thereof. The conductive fabric comprises, from inside to outside, an adhesive force improving layer attached to the surface layer ofa fabric substrate, a liquid metal layer, an oxygen isolation protective layer and a packaging protective layer. The preparation method comprises: applying the adhesive force improving layer to the surface layer of a fabric substrate, coating the adhesive force improving layer with the liquid metal layer, coating the liquid metal layer with the oxygen isolation protective layer, and coating the oxygen isolation protective layer with the packaging protective layer. The coating manner includes spraying, brush coating, flow coating or printing. Compared with a conductive fabric in the prior art,the conductive fabric is excellent in conductivity, fold resistance, laundering durability and tensile property. The preparation method is simple and reliable.

The invention discloses an axial diode which comprises a diode chip, a first copper electrode, a second copper electrode, a protection glue layer and epoxy insulation glue, wherein the diode chip is located between the two copper electrodes; an anode contact surface and a cathode contact surface of the diode chip are respectively and integrally welded with the corresponding copper electrodes through a first welding adhesion layer and a second welding adhesion layer; the two copper electrodes are respectively provided with two leads that are integrated into a whole; each of the first copper electrode and the second copper electrode is provided with a boss; the diode chip is located between the two bosses; the protection glue layer is coated at the peripheries of the diode chip, the two bosses and the two welding adhesion layers; and the epoxy insulation glue is coated at the peripheries of the two copper electrodes, the protection glue layer and parts of the two leads. The fabrication method of the axial diode with the protection glue layer as polyimide glue comprises the steps of racking, welding, pickling, gluing, solidifying, mold pressing, aging and electroplating. The axial diode is good in electrical property and high in reliability; and the fabrication method has the characteristics that the fabrication method is more reasonable, and the production efficiency is high.

A sensor used for a termite monitor control system comprises a shell body. At least a conductive detection element is arranged in the shell body. The sensor is characterized in that: the conduction detecting element is made from materials that termites are fond of eating and the middle of the conducting detecting element is provided with at least one perforative channel; a conductive powder material is pressed in the channel; a terminal is arranged on each end of the channel and is connected with a monitoring circuit via a lead to form a conductive loop. Compared with the prior art, the invention has the advantages that: the conductive powder material pressed in the channel of the conductive detection element is used as a conducting medium, which can not affect the conductive property of the conductive powder material owing to the retractility, etc., of materials that the termites are fond of, consequently the sensor is of good stability; in addition, the conductive powder material is tightly wrapped in the materials that the termites are fond of, has a strong adaptation ability to the ambience, and a single detection ability to the termites, thus having a higher inspection accuracy.

The invention relates to a manufacturing method of a light-emitting device, comprises the following steps of: firstly, providing a substrate, then forming an light-emitting unit on the substrate, forming at least one electrode, and forming at least one protective layer on the electrode, thereby preventing a fluorescent powder layer from covering the electrode when the fluorescent powder layer is formed on the light-emitting unit; and after forming the fluorescent powder layer, leveling the fluorescent powder layer and the protective layer, i.e. removing part of the fluorescent powder layer from the protective layer, then removing the protective layer, thereby preventing the electrode from being influenced by the fluorescent powder layer, and further improving the electric conductivity of the electrode, improving the thickness and uniformity of fluorescent powder of the light-emitting device, effectively reducing the thickness of the light-emitting device with a light-emitting diode, and greatly improving the stability in white light color temperature control.

The invention provides an array substrate, a manufacturing method of the array substrate and a display device and belongs to the technical field of displaying. The manufacturing method of the array substrate includes the steps that a metal layer is formed on the substrate, and metallic oxide on the surface of the metal layer is removed. According to the technical scheme, the metal oxide on the surface of a metal electrode can be removed, and the performance of a thin film transistor on the array substrate is improved.

The invention discloses a display panel and a display device. A silver paste point is arranged in a binding area on an array substrate in the display panel. An opposite substrate is close to one end of the binding area of the array substrate. The face, close to a polaroid, of the opposite substrate is provided with a silver paste point corresponding to the silver paste point on the array substrate. The silver paste point is used for coating silver paste and electrically connected with the array substrate and the opposite substrate. The area, corresponding to the silver paste point on the opposite substrate, on the polaroid is provided with an opening. Due to the fact that the The area, corresponding to the silver paste point on the opposite substrate, on the polaroid is provided with the opening, the silver paste coating area of the silver paste point is increased, and the polaroid can be prevented from making contact with silver paste coated by the silver paste point; in the whole machine preparation and using process, the silver paste of the silver paste point can be prevented from adhering to the polaroid, the phenomenon that polaroid damages and fractures the silver paste of the silver paste point under external force impact or heat impact, and the heat conductivity of the silver paste point is affected can be prevented, and good conductivity between the array substrate and the opposite substrate is ensured.

The invention discloses a calibrating technology and device for a pure water total organic carbon analyzer. The calibrating device comprises a stirrer, a mixing bottle, an air inlet pipe, an exhaust pipe, a distribution pipeline, the pure water total organic carbon analyzer for calibration and a collecting bottle. According to the calibrating technology and device, during use, protective gas is continuously input into the mixing bottle, after air is discharged completely, blank water and a TOC solution with the known concentration are accurately input into the scale mixing bottle through an infusion pump, uniform stirring is carried out through the stirrer, the data measured by the high-accuracy pure water total organic carbon analyzer is compared with the result of dilution of TOC of thesolution in the mixing bottle, the result of the newly-prepared TOC standard solution obtained in the diluting and mixing processes is confirmed to be accurate and reliable, and the calibrating technology and device can be used for calibrating the pure water total organic carbon analyzer to be detected; due to the fact that the protective gas is continuously introduced into the mixing bottle, theair is driven out of the mixing bottle, and therefore the phenomenon that the detection precision is influenced due to the fact that carbon dioxide in the mixing bottle is blended into the mixing bottle can be avoided; the mixing bottle is made of a quartz material, so that the phenomenon that the detection accuracy is influenced due to the fact that metal ions is dissolved out due to the adoptionof a glass material can be avoided; the distribution pipeline is made of polytetrafluoroethylene, so that the problem that the detection accuracy is influenced due to the fact that free carbon elements in a pipeline enter a solution due to the adoption of a plastic pipeline can be solved; and accurate calibration of the pure water total organic carbon analyzer is realized.

The invention discloses a binding manufacture technology for an electrical element of a flat-panel display, which is characterized of comprising the following steps of: 1) manufacturing a lead wire of the flat-panel display; 2) cleaning the lead wire; 3) paving a protection film on the lead wire; and 4) subsequently binding the electrical element. A coating work procedure of the protection film of the lead wire is as follows: coating material of the protection film-previously solidifying-exposing-developing-mainly solidifying. The material of the protection film is thermoplastic resin or polyamide-containing thermoplastic polymer. After improving the technology, after manufacturing the lead wire at the base plate of the flat-panel display, a layer of protection film is paved on the lead wire immediately, to prevent the lead wire from being corroded to affect electricity-conduction capability caused by contacting with the other medium in the subsequent process of machining.

The invention belongs to the technical field of lithium battery, and especially relates to a solid state electrolyte membrane electrical core layer structure interface processing method, and a lithiumelectrical core structure. The solid state electrolyte membrane electrical core layer structure interface processing method comprises following steps: a solid state electrolyte membrane is provided;an electrode active material layer is formed on the solid state electrolyte membrane so as to form a pre-electrical-core layer structure; a preset hot pressing temperature and a preset pressing pressure are adopted for hot pressing treatment of the pre-electrical-core layer structure, wherein the preset hot pressing temperature and the preset pressing pressure are the critical temperature and thecritical pressure of conversion of solid phase into mobile phase of the solid state electrolyte membrane. Under the preset hot pressing temperature and the preset pressing pressure, the solid state electrolyte membrane is converted from solid phase into liquid phase, so that the interface resistance between the solid state electrolyte membrane and the electrode active material is reduced preferably, and the conductivity of conductive ions between the solid state electrolyte membrane and the electrode active material is improved.

The invention relates to a fast charging cable for a new energy electric vehicle charging pile. The invention belongs to the technical field of wires and cables. The fast charging cable includes two main power line cores, a protective ground line core, a control cable core, a monitoring cable core, filling, an inner layer, a total shielding layer, and a sheath layer. The main power line core and the protective ground line core are formed by conductors, cladding layers and insulating layers. The control cable core is formed by conductors, an insulation layer, filling, a sub-shielding layer, and a cable core protective layer. The monitoring cable core is formed by conductors, an insulation layer, filling, a sub-shield layer, and a cable core sheath layer. An inner protective layer is arranged outside the main power line core, the protective ground line core, the control cable core and the monitoring cable core. A total shielding layer is arranged outside the inner protective layer. A sheath layer is extruded outside the total shielding layer. The fast charging cable has the advantages of high voltage level, good flexibility, good tensile resistance, excellent flame retardancy, weatherability, chemical resistance and electromagnetic interference resistance.

The invention relates to the field of cable maintenance, in particular to a line repair device. The line repair device includes a repair shell; a line connector is arranged in the repair shell; the line connector includes a middle connecting piece and two lock nuts; the two lock nuts are connected to both ends of the middle connecting piece in a threaded manner; each lock nut is provided with a tapered elastic sleeve; the entrance of a wire insertion hole is a corresponding tapered expansion structure; the upper surface of the repair shell is provided with a glue injection hole, and the liquidrepair glue can be injected into the repair shell through the glue injection hole; and the repair glue and repair shell together form a line repair insulation layer after the repair glue solidifies.The beneficial effects of the line repair device are as follows: the wire connection at the cable connection location is firm and reliable, and has a large current flow area; and the repair shell andthe solidified repair glue together form the repair insulation layer at the cable connection location; therefore, the water and moisture resistance is good, the strength is high and not easy to break,the cable can run effectively for a long time after connecting, and the service life of the cable is prolonged.

The invention relates to a bearing cage including a bearing cage main body made of a polymer material and having pockets for receiving at least one row of rolling elements of a bearing. The cage is provided with a passive resonant circuit including an antenna coil attached to the cage main body. It is proposed that the antenna coil is formed as a conductive layer directly attached to the cage material of the bearing cage main body and is designed so as to have a breaking point less than or equal to a breaking point of the cage material. Thus, a rupture in the cage main body ruptures the antenna coil, changing the resonance behaviour of the passive resonant circuit.

The invention discloses a novel carbon nano tube electrochemical sensing interface and a preparation method thereof. The novel carbon nano tube electrochemical sensing interface is characterized in that based on a novel functional carbon nano tube static compound monomolecular layer and a modified electrode electrochemical sensing interface analysis system of a polymer film, and through the use of surface negative charge activity of the anion conducting polymer film and the adoption of layered electrostatic self-assembly, a novel poly sulfanilic acid / quaternary ammonium functional carbon nano tube / monomolecular layer sulfanilic acid nano-composite film modified electrode sensing interface is prepared. Through the electrostatic self-assembly of the poly sulfanilic acid / quaternary ammonium cation functional carbon nano tube / monomolecular layer sulfanilic acid nano-composite film electrode sensing interface, the whole preparation process is simple and time-saving, the condition is controllable, the prepared sensing interface is good in stability and repeatability, the repeatability of the preparation process of the sensing interface is high, and the problem that the stability and the repeatability of an electrochemical sensor are poor in practical application is solved to a great degree.

The invention discloses a circulating cooling system for a railgun rail and a cooling method. Outlets of a first pneumatic powder suction pump and a second pneumatic powder suction pump of the system are connected with a spray nozzle of the railgun rail. The railgun rail is connected with a gas separation device through a pipeline. The gas separation device is connected with a Fe2O3 reproduction device through a pipeline. The Fe2O3 reproduction device is connected with the second pneumatic powder suction pump through a pipeline. The railgun rail is mainly composed of a reaction channel, a trapezoid spray nozzle, a rail inner wall and a rail outer wall. A hollow communicated reaction channel is formed by the rail inner wall and the rail outer wall. The diameter of the reaction channel ranges from 20 mm to 25 mm. The thickness of the rail outer wall ranges from 4.5 mm to 5.5 mm. The side, close to the outer wall, of the inlet end of the reaction channel is provided with the trapezoid spray nozzle. The reaction channel is of a U-shaped structure. According to the circulating cooling system, the spray-out pressure of the spray nozzle is controlled by controlling the flow speed of a reaction medium entering the outer wall channel, continuously circulating cooling can be guaranteed, and the temperature of the railgun rail is lowered quickly.

The invention relates to the technical field of unmanned aerial vehicles, in particular to an unmanned aerial vehicle for centralized spraying of various types of pesticides. The unmanned aerial vehicle comprises an unmanned aerial vehicle body. A control panel is arranged on the upper surface of the unmanned aerial vehicle body, and a storage battery is arranged on the upper surface of the control panel. Support frames are arranged at two ends of the lower surface of the unmanned aerial vehicle body, and a pesticide storage tank is arranged on the support frames. A compression module is arranged on the lower surface of the unmanned aerial vehicle body, and is used for fastening the pesticide storage tank. Locking modules are arranged on the support frames on the lower surface of one sideof the unmanned aerial vehicle body, and are used for locking and fastening the lateral sides of the pesticide storage tank. A pesticide spray nozzle is arranged at the bottom end of the pesticide storage tank. The compression module can compress different sizes and types of pesticide storage tanks to the support frames at the bottom end of the unmanned aerial vehicle body. A buffer connecting shaft module can mount and fasten the different types of the pesticide storage tanks, the pesticides can be conveniently sprayed in a centralized way by the unmanned aerial vehicle, and the pesticide spraying efficiency of the unmanned aerial vehicle is improved.

The invention belongs to the technical field of electronic paste, and particularly relates to conductive silver paste, a preparation method and application of the conductive silver paste to a conductive film. The conductive silver paste adopts 30%-75% by mass of a modified conductive medium, 5%-20% by mass of pretreated silica gel resin, 1.0%-10% by mass of a silane coupling agent and 10%-50% by mass of a solvent, wherein the conductive medium is metal silver or silver-coated copper or a mixture of metal silver and silver-coated copper, and the metal silver is composed of silver powder and silver wires, and the silver powder is one or more of flakes, branches, particles and spheres. The preparation method comprises the steps of conductive medium modification, silica gel resin pretreatment,silica gel resin solution preparation, silane coupling agent addition and conductive silver paste preparation, and the prepared conductive silver paste coats one side or two sides of a silicone rubber film. The conductive medium on a conductive film prepared from the conductive silver paste is not easy to fall off, and the conductive film is good in bending resistance, conductivity and tensile property; and the advantages of high flexibility and elasticity, high and low temperature resistance, low production cost and the like are realized.

The invention provides a modular detachable SMC composite molded battery pack for a new energy automobile. The battery pack comprises a battery pack shell and a cover plate, two mounting baffles are mounted in the battery pack shell in a sliding manner; a battery accommodating cavity is formed between each mounting baffle and an inner wall of the battery pack shell; a battery module is mounted ineach battery accommodating cavity in a sliding manner; a locking mechanism is arranged at one end of each battery module; an insulating film is arranged above each battery module; each insulating filmis fixed between the mounting baffle and the inner wall of the battery pack shell through an adjusting mechanism; a plurality of conductive films are arranged at the bottom of each insulating film side by side; and two pressure mechanisms are set on the cover plate. According to the battery pack disclosed by the invention, the pull-out installation of the battery module is realized, the disassembly and assembly steps of the battery module are simplified, the time for installing the battery module by an operator is shortened, and the size of the battery accommodating cavity can be adjusted according to the size of the battery module such that the battery pack can be adapted to the battery modules with different capacity specifications.

The invention discloses a preparation method of a high-strength and high-conductivity copper-silver alloy wire. The alloy mainly comprises 0.2 to 8.0 percent by weight of Ag, not more than 0.1 percentof impurities and the balance of Cu. The preparation method sequentially comprises the steps of vacuum melting, vacuum continuous casting, aging and multi-pass drawing. By means of the technology, the content of solid solution Ag atoms in the alloy can be well controlled, and meanwhile, nano Ag is separated out, so that the dislocation density of the alloy is improved, and the alloy obtains the maximum separation strengthening and dislocation strengthening effects. Compared with a traditional method that solid solution is conducted firstly and then aging is conducted, the preparation method provided by the invention has the advantages that the mechanical property of the Cu-Ag alloy is guaranteed, meanwhile, higher electrical conductivity can be obtained, the mechanical property and the electrical conductivity of the prepared copper-silver alloy wire are well matched, the technological process is shortened, and the production cost is reduced.

The invention provides a protective agent composition. The protective agent composition comprise Cr3+ salt, conductive salt and solvents. The conductive salt is selected from one kind or certain kinds of sulfate of alkali metal, nitrate of alkali metal and chlorate of alkali metal. The solvents are selected from one kind or certain kinds of formic acid, acetic acid, methanol, glycine, citric acid and oxalic acid. Compared with the prior art, the protective agent composition provided by the invention contains the Cr3+ salt, the non-toxic and environmental-friendly Cr3+ salt serves as a film coating solution to conduct cathode passivation process operation, a transparent protective film with the low content of the Cr3+ salt can be formed on the surface of a bonding wire, the protective agent composition forms the protective film on the surface of the bonding wire, the bonding wire is prevented from color change caused by suffering the corrosion of oxides and sulfides, meanwhile the original reflective rate and electrical conductivity of the bonding wire are not reduced, and the cost is low. The invention further provides the corrosion resistant bonding wire and a preparation method thereof.

A laser beam resistance welding power module mainly comprises a semiconductor chip, a copper clad ceramic substrate, welding flux and a copper substrate. Resistance welding graphic wire frames for welding the copper clad ceramic substrate and the semiconductor chip respectively are etched on the copper substrate by laser beams, the semiconductor chip and the copper clad ceramic substrate are respectively welded in the resistance welding graphic wire frames on the copper substrate through the welding flux, the wire diameter of the resistance welding graphic wire frame for welding the copper clad ceramic substrate is 1mm, the wire diameter of the resistance welding graphic wire frame for welding the semiconductor chip is 0.1mm, the minimum unilateral distance between the welding flux and an area of the corresponding resistance welding graphic wire frame is 0.3mm, the minimum unilateral distance between the edge of a lower copper layer of the copper clad ceramic substrate and an area of the corresponding resistance welding graphic wire frame is 0.4mm, the power of the laser beams is controlled within a certain range, and the surface of the copper substrate treated by the laser beams can stop the welding flux and elements from position movement at a melting stage in the welding process.

The invention discloses a rolling barrel electroplating device. The rolling barrel electroplating device comprises a bracket and a rolling barrel; the rolling barrel is a hollow structure, and the two ends of the rolling barrel are respectively molded or fixedly connected with end covers; and the rolling barrel is rotationally connected to the bracket through the two end covers. The rolling barrel electroplating device further comprises two electric conducting mechanisms matched with the two end covers one to one; the two electric conducting mechanisms respectively comprise electric conducting bearing bushes for connecting with cables, surface-shaped electric conducting parts and electric conducting shafts; the electric conducting parts are mounted on the inner end surfaces of the end covers; the electric conducting shafts are fixed on the end covers, and are positioned on the rotating axis of the end covers; the electric conducting shafts are electrically connected with the electric conducting parts; and the electric conducting bearing bushes are positioned out of the rolling barrel, and are tightly pressed on the side surfaces of the electric conducting shafts through elastic positioning mechanisms. The rolling barrel electroplating device adopts the structure, is less in wear and durable, saves the material cost and the maintenance cost caused by frequent replacement of electric leads in the prior art, solves the problem of deformation of small sheet type parts due to the beating of the electric leads, and reduces the labor cost caused by subsequent classification of bad parts through labors.

The invention discloses a machining device for a matt cable. The machining device comprises a sand blasting box, a centrifugal chamber and a high-pressure gas source. A sand guide pipe and a high-pressure gas pipe are arranged in the sand blasting box. The centrifugal chamber is arranged above the sand blasting box and communicated with the sand guide pipe. The high-pressure gas source is communicated with the high-pressure gas pipe. A cable inlet and a cable outlet are formed in the two sides of the sand blasting box respectively. Multiple baffles are arranged at the portion, between the cable inlet and the cable outlet, in the sand blasting box and distributed criss-cross in the cable conveying direction. One side of each baffle is provided with at least one spray gun, spray openings of the spray guns face the baffle faces, close to the conveyed cable, of the baffles, gaps allowing the cable to pass are reserved between the spray guns and the baffle faces of the baffles, each spray gun is provided with two inlets, one inlet of each spray gun is connected with the sand guide pipe, and the other inlet of each spray gun is connected with the high-pressure gas pipe. By the adoption of the machining device, the baffles are arranged criss-cross in the cable conveying direction, so that the situation that the cable swings and shakes due to blasting force in the sand blasting process, the sand blasting face is uneven, and conveyance is unstable is avoided.

The invention relates to a chemical copper plating activating agent, a preparation method thereof as well as an activating agent based method of preparing a circuit by adopting an fully additive method, and belongs to the technical field of chemical plating and circuit manufacturing. According to the activating agent, the preparation method and the method of preparing the circuit, a complexing agent which is mutually soluble with an adhesive and contains an unsaturated bond and a curing agent matched with the adhesive are added on the basis of a traditional activator, in the curing process after a preset circuit pattern is formed, the adhesive is firmly combined with a base material through physical adsorption and chemical action, meanwhile, the complexing agent for adsorbing catalyst ionsis chemically bonded with an epoxy resin adhesive, so that the catalyst ions are enabled to be uniformly distributed in an activation layer of the surface of the base material, so that a bridging layer and a fixed catalyst are formed on the surface of the base material in one step, and a plating layer which is dense, bright and strong in adhesive force can be formed by cooperating with a subsequent chemical plating process. The problems that metal nanoparticle agglomeration and an additive influence circuit conductivity, the bridging layer of the surface of a substrate board is poor in universality, preparation is complex and time consumption is large in the case of an existing fully-additive circuit manufacturing process are solved.

The invention relates to a bearing cage including a bearing cage main body made of a polymer material and having pockets for receiving at least one row of rolling elements of a bearing. The cage is provided with a passive resonant circuit including an antenna coil attached to the cage main body. It is proposed that the antenna coil is formed as a conductive layer directly attached to the cage material of the bearing cage main body and is designed so as to have a breaking point less than or equal to a breaking point of the cage material. Thus, a rupture in the cage main body ruptures the antenna coil, changing the resonance behavior of the passive resonant circuit.

The embodiment of the invention relates to the field of flexible display technology, and discloses a flexible display panel, a display device and a preparation method of the flexible display panel. The flexible display panel comprises a flexible substrate and a positive electrode arranged on the flexible substrate, wherein one side of the positive electrode facing the flexible substrate is provided with at least one first groove; one side of the positive electrode deviating from the flexible substrate is provided with at least one second groove. In the embodiment of the invention, one side ofthe positive electrode facing the flexible substrate is provided with at least one first groove, and one side of the positive electrode deviating from the flexible substrate is provided with at leastone second groove, so that the edges of the first grooves and the second grooves can play the role of stress release when the flexible display panel bends, thereby improving the stress bearing capacity of the positive electrode and reducing the risk of breakage of the positive electrode during bending of the flexible display panel.

The invention discloses a contact structure for a non-vacuum medium, and the structure comprises a first contact, a second contact, a soft connection part, and an insulating cylinder. The contact ends of the first and second contacts are arranged in a planar manner. The insulating cylinder is provided with an end opening part and a central opening part. A contact end of the first contact is located on an end face of the end opening part of the insulating cylinder. The first and second contacts contact with each other electrically, thereby forming plane butting connection. A contact part is located on the end face of the end opening part of the insulating cylinder. One end of the soft connection part is disposed in the insulating cylinder, and is fixedly connected with the first contact. The other end of the soft connection part stretches out from the central opening part of the insulating cylinder. The arrangement of a contact surface in the insulating cylinder guarantees the centering and accurate contact of the first contact with the second contact. Meanwhile, the limit of the insulating cylinder guarantees the stable contact area and environment. The structure can guarantee the sufficient contact area through the plane butting connection structure even if the centering is not achieved and there is a certain error on direct contact. The structure is small in contact resistance, is strong in through-current capability, and reduces the temperature rise.

The invention belongs to the technical field of printed circuit boards and discloses a printed circuit board blind hole manufacturing method. The method comprises the steps of forming a blind hole in a printed circuit board manufactured on an inner line, manufacturing an organic film on the surface of the printed circuit board, forming a connection hole in the organic film on the bottom of the blind hole to enable the inner copper line to be exposed, conducting electroless copper plating on the printed circuit board to form an electroless copper plating layer, conducting electroplating on the electroless copper plating layer to form a porefilling metal electrode and an outer line, and etching the part, not electroplated, of the electroless copper plating layer and arranging an insulating material on the outer line in a press fit mode. According to the method, the surface smoothness of the copper line is improved by making the surface of the copper line coated with the organic film material.

The invention discloses a collector ring for a high temperature and high humidity environment. The collector ring comprises a ring core, an electric brush and a shell; the electric brush is connectedto the inner surface of the shell, and the end of the electric brush is in sliding contact with a metal ring on the ring core; a cavity is formed in the shell, and is internally provided with a dryingcomponent and a cooling device. The collector ring has the advantages that heat generated by the collector ring during high-speed operation can be dissipated timely, and accordingly, the temperatureof the collector ring is prevented from being ultrahigh; the drying component can effectively absorb water vapor in the shell to achieve effective dehumidification, and accordingly, a good working environment for the collector ring is formed to guarantee normal working of the collector ring in the high temperature and high humidity environment; therefore, the service life of the collector ring isprolonged, and the electric conductivity of the collector ring is stable.

The invention discloses a chip high voltage ceramic dielectric capacitor, which comprises a silver-plated ceramic chip, a plastic case, metal outgoing wires and an insulated sealant, wherein the section of each metal outgoing wire is long strip-shaped; each metal outgoing wire is U-type on the whole; each metal outgoing wire comprises a transverse welding part, a vertical bending part and a transverse fitting part; the transverse welding part is used for being welded with a first electrode or a second electrode; the transverse fitting part is used for being electrically connected with a to-be-mounted device; the vertical bending part is used for being connected with the transverse welding part and the transverse fitting part; a removable assembly is arranged on the transverse fitting part located at the outer side of the plastic shell; and a lead groove is filled with the liquid-shaped insulated sealant capable of being cured. After the above structure is adopted, a single chip shape can be made, the appearance is regular, the chip high voltage ceramic dielectric capacitor can be directly mounted on a circuit board, insertion like a wafer ceramic dielectric capacitor is not needed, and high-efficiency SMT mounting production can be better met.

The invention discloses a flexible self-supporting lithium ion battery negative electrode material which comprises foamed nickel and an active ingredient Fe2O3 attached to the surface of the foamed nickel. The foamed nickel presents a three-dimensional porous mesh framework structure; the Fe2O3 grows on the surface of the foamed nickel in situ and in the pore channel of the three-dimensional porous mesh framework structure, and presents a nano 'deer-horm-shaped' structure; and coal-based graphene carbon quantum dots are coated on the surface of the nano Fe2O3. The invention further discloses apreparation method of the flexible self-supporting lithium ion battery negative electrode material. The method comprises the following steps: growing Fe2O3 in situ on the foamed nickel by adopting anelectro-deposition technology, and coating the coal-based graphene carbon quantum dots on the surface of the Fe2O3. According to the material disclosed by the invention, the foamed nickel serves as the framework, usage of an adhesive or a dispersing agent is avoided, the conductivity of the material is improved, and volume expansion of the Fe2O3 in the charging and discharging process is effectively inhibited by taking CGQDs as the coating material; and the preparation method disclosed by the invention is simple and high-efficiency.