197results about How to "Play a conductive role" patented technology

The invention discloses a current collector, and an application of the current collector in a lithium ion battery, and concretely relates to a composite current collector, and a lithium ion secondary battery applying the current collector. The composite current collector comprises an upper metal layer, a lower metal layer and a nonmetal layer arranged between the upper metal layer and the lower metal layer, vacuum electroplating, electrolytic electroplating or composite bonding compounding is carried out between the upper metal layer and the nonmetal layer and between the nonmetal layer and the lower metal layer, and the thickness of the nonmetal layer is controlled to be 2-20 [mu]m; and the thickness of each of the upper metal layer and the lower metal layer is controlled to be 1-10 [mu]m. The above structure reduces the weight of the current collector and guarantees that the composite current collector have excellent tensile strength and excellent flexibility; the outer layer of the current collector is the metal layer, and has a conductive effect; and the above reasonable structure design substantially improves the mass energy density of the produced lithium ion secondary battery and effectively prolongs the cycle life of the battery.

The invention discloses a hanging tool for wafer electroplating. The hanging tool comprises an upper cover, a lower plate and a metal conductive ring, wherein an inner thread is arranged on the inner wall of the upper cover, a wafer groove is formed in the lower plate, an electroplating hole is formed in the middle of the wafer groove, and an outer thread engaged with the inner thread is arranged on the outer wall of the wafer groove; a platform is arranged between the inner wall of the wafer groove and the electroplating hole; the metal conductive ring is arranged on the platform. The upper cover of the hanging tool for the wafer electroplating is locked in a rotary mode, and the need of manually disassembling screws is eliminated, so that the hanging tool is convenient to operate, uniform in force, good in electrical conductivity and sealing performance and uniform in water coating, thereby greatly saving the manpower and reducing the wafer scrapping risk.

The invention discloses a making method of proton exchange film fuel battery pile in the fuel battery technical domain, which comprises the following steps: (1) pressing plane MEA into wave shape under heating condition; (2) adopting micro-fine pushing technique to punch the hyperthin plane metal plate; punching the plate with hole into wave shape to mate wave-shaped MEA; obtaining monopole board; (3) adopting laser welding technique to weld a couple of monopole board into double-pole board; (4) plating a layer of conductive polyaniline on the metal surface through circulating volt-ampere method. The invention improves the reacting efficiency and energy density, which lightens the weight and resists corrosion.

The invention belongs to the field of material electrochemical corrosion test monitoring, more precisely, relates to a kind of electrochemical corrosion test device for realizing multiple in-situ monitoring, and solves the in-situ in-situ monitoring of material surface corrosion morphology existing in the prior art. information, and is not suitable for issues such as long-term online monitoring. The device is mainly composed of three parts: electrochemical test device, acoustic emission test device, and optical observation system. The working electrode is connected to the waveguide rod, and forms a three-electrode system with the counter electrode and reference electrode. Electrochemical (polarization curve, impedance spectrum, etc.) tests can be performed through the electrochemical workstation; the acoustic emission probe is fixed on the waveguide rod and can be collected synchronously. The acoustic emission signal during the corrosion process of the working electrode; the long focal length microscope can observe the corrosion morphology of the surface of the working electrode in situ. The device can realize various in-situ monitoring such as electrochemistry, acoustic emission, and long-focus microscope at the same time, and realize electrochemical corrosion monitoring of materials at room temperature.

The invention relates to a multi-component composite anode material and a preparation method thereof. The multi-component composite anode material is characterized by comprising the following components in mass fraction: 15 to 30% of nano silicon powder, 5 to 9% of carbon nano tube, 19 to 40% of expanded graphite, and 37 to 55% of amorphous carbon. The multi-component composite anode material is prepared by carbonizing polyving akohol or polyethylene glycol at high temperature. The nano silicon powder serving as a core active material is used for storing energy; the carbon nano tube is used for conducting electricity; the expanded graphite is dual-functional, including effects of serving as a massive and rigid buffer space and a conductive additive during charging and discharging through silica powder; the amorphous carbon is prepared by carbonizing polyving akohol or polyethylene glycol at high temperature and can be used as a flexible buffer space. The composite material is outstanding in electrochemical properties.

The invention provides a polishing solution for electrochemical polishing of a nickel-titanium alloy, and belongs to the field of nickel-titanium alloy surface treatment. The polishing solution is composed of the following matter of, by volume, 22%-43% of concentrated sulfuric acid, 37%-50% of ethylene glycol, 5%-10% of an additive agent and the balance water. The invention further discloses a method for electrochemical polishing of the nickel-titanium alloy, the nickel-titanium alloy is treated as the anode, a stainless steel plate is treated as the cathode, the anode and the cathode are placed into the electrical polishing solution, and electrochemical polishing is conducted. The electrochemical polishing solution and the polishing method can be used for polishing a medical nickel-titanium alloy, the nickel-titanium alloy which is subjected to polishing treatment is good in corrosion resistance. The formula of the nickel-titanium alloy electrochemical polishing solution is not proneto volatilizing, stable and environmentally friendly, low in cost and good in operating environment.

The invention discloses a high-specific capacity lithium-sulfur secondary battery composite cathode and a preparation method thereof. The method comprises the following steps: (1) weighing elemental sulfur, copper powder, a conductive agent and a binder, and mixing the raw materials to prepare a sulfur cathode; and (2) putting the sulfur cathode prepared in the step (1) into a vacuum oven for drying at the temperature of 40-80 DEG C for 24-72 hours, so as to obtain the lithium-sulfur secondary battery composite cathode containing the elemental sulfur and copper sulphate. According to the composite cathode disclosed by the invention, the first discharge specific capacity reaches 1400mAh/g-S; the discharge capacity is kept at 997.8mAh/g-S after 30 cycles; and the lithium-sulfur secondary battery composite cathode also displays relatively good cycling stability. According to the preparation method disclosed by the invention, the manufacturing process is simplified; the cost is reduced; and the copper sulphate generated by a chemical method has relatively high reaction activity, and is conducive to improvement of the discharge capacity of a lithium-sulfur battery.

The invention relates to the technical field of displaying and provides a color filter and a preparation method thereof, as well as a liquid crystal display device. According to the invention, the color filter comprises a substrate, a black matrix layer, a color filter layer, a flattened conductive layer and a spacer, wherein the flattened conductive layer is formed by laminar di-hydroxyl hydroxide stripping liquid. According to the invention, in the color filter, a flat protective layer and a conductive layer of the traditional color filter layer are replaced with the flattened conductive layer. According to the invention, in the preparation process of the color filter, a conductive layer forming process and a flat protective layer forming process are combined into a one-step process, so that the technical cost of the sputtering conductive layer is reduced; moreover, as the laminar di-hydroxyl hydroxide stripping liquid is used as the flattened conductive layer, the material cost is reduced, which greatly reduces the cost.

The invention relates to a process for manufacturing stainless steel by using high-phosphorus nickel-chromium pig iron, which comprises the steps of charging, electrification, oxygen blowing, flushing, refining and the like. By the process provided by the invention, high-phosphorus nickel-chromium pig iron is dephosphorized in an electric furnace, stainless steel is produced by smelting, the high-phosphorus nickel-chromium pig iron with low cost is adopted as a raw material, the manufacturing cost of each ton of stainless steel can be lowered by about 200 dollars, the use field of the raw material of the stainless steel can also be further expanded, and the nickel-chromium pig iron with high phosphorus content can be applied to the smelting production of the stainless steel in a large scale.

The invention relates to the field of preparing semiconductor materials and provides a preparation method of a multilayer transparent conductive thin film as well as a prepared thin film and an application thereof. The method comprises the following steps: mixing SiO2 powder with ZnO powder and sintering to serve as an SZO target, wherein the mass ratio of the SiO2 powder to the ZnO powder is 2/199-1/6; providing an Ag target; and putting the SZO target and the Ag target into a magnetic-control sputtering cavity, orderly sputtering a first SZO layer, an Ag layer and a second SZO layer on a substrate so as to obtain an SZO-Ag-SZO transparent conductive thin film which is of a sandwich structure. The invention also provides the multilayer transparent conductive thin film obtained by using the method and the application of the film in semiconductor photoelectric devices.

The invention relates to a precharged high-efficiency liquid injection technology of a lithium ion battery, comprising the following steps: first liquid injection, wherein the liquid injection amountis 20-60% of the total liquid injection amount; The batteries after the first injection are precharged with a charge rate of 0.1 C -1.7 C and a charge time of 30 -300s. 40 to 80 percent of the total liquid injection amount; High temperature activation is performed, activation temperature is 30-90DEG C, activation time is 8-15h; Formation. A first injection solution of the present invention is injected into a part of the electrolyte, then the electrostatic adsorption between the pole piece and the diaphragm is opened by precharging, the pole piece and the diaphragm are loosely separated, the electrolyte is injected into the battery for the second time, and the electrolyte can smoothly penetrate into the middle of the coil core, the electrolyte is completely absorbed by the pole piece through the high-temperature static electrolyte, and the SEI membrane is formed after the electrolyte is formed; It not only shortens the injection time and improves the injection efficiency, but also improves the first efficiency and cycle life of the battery.

The invention relates to an electrochemical polishing solution for zinc alloy devices and a polishing method thereof, particularly an electrochemical polishing solution for zinc alloy products and a polishing method thereof, belonging to the field of zinc alloy material surface treatment. The electrochemical polishing solution for zinc alloy devices is composed of the following substances in percentage by volume: 10-40% of phosphoric acid, 20-85% of ethylene glycol butyl ether and 5-50% of acetic acid. The polishing solution has the characteristics of low toxicity, high component stability and the like, and can be used for electrochemical polishing of zinc alloy products. The polished zinc alloy product has the advantages of high brightness and smooth surface. The electrochemical polishing solution is free of environmentally harmful components and biologically toxic components, can not introduce toxic substances onto the zinc alloy surface, and is especially suitable for electrochemical polishing of medical zinc alloy instruments. The electrochemical polishing solution has low component volatilization rate, and thus, is beneficial to shortening the polishing solution replacement period.

The invention relates to a power battery pack. The positive electrode and negative electrode of the power battery pack are respectively provided with a copper-aluminum composite plate. One surface of the copper-aluminum composite plate is a copper plate, and the other surface is an aluminum plate. The copper plates face the electrodes of the power battery pack. The back of the aluminum plates face the electrodes of the power battery pack. The single cells (1) in each row are parallelly connected and welded through one fuse (2); the electrodes of the single cells (1) and the fuse (2) are welded through ultrasonic waves, and the aluminum plates and the fuse (2) are welded through ultrasonic waves. The processing becomes convenient, the cost is reduced, after adopting the abovementioned technical scheme, moreover, the parallel connection of the battery pack is stable and reliable, and the conductive performance is excellent.

A flexible substrate comprises a thin polymer film substrate, a first metal aluminum layer is arranged on one surface of the thin polymer film substrate, a second metal aluminum and a thin polyimide film layer are alternatively arranged on the other surface of the thin polymer film substrate, the two ends of the thin polymer film substrate are provided with metal aluminum layer structures, and the material of the thin polymer film substrate is selected from at least one of polyethylene terephthalate, polyether sulfone, polyethylene naphthalate and transparent polyimide. The flexible substrate has low water oxygen permeability. The invention also provides a preparation method and an application of the flexible substrate.

The invention relates to an asymmetric-structure in-situ ultrasonic anti-pollution membrane with a piezoelectric material as a support body. The membrane is characterized in that the support body is a porous piezoelectric ceramic with an average pore size of 100 to 3000 nm; and a separating layer is a porous inorganic film with an average pore size distribution of 1 to 1000 nm. The preparation method comprises the following steps: preparing the ceramic support body with a porous structure from piezoelectric ceramic powder and preparing the porous inorganic separating layer on the surface of the ceramic support body; subjecting a wet membrane to air-drying, stoving, calcining and natural cooling successively so as to prepare an asymmetric-structure membrane; and subjecting the asymmetric-structure membrane to high-voltage polarization so as to obtain the asymmetric-structure in-situ ultrasonic anti-pollution membrane. The pore size of the separating film prepared in the invention is adjustable in a range of 1 to 1000 nm so as to meet demands of different separation systems; meanwhile, the piezoelectric support body can generate ultrasonic vibration in the process of separating, so substantial anti-pollution effect is obtained.

The invention relates to an LED filament lamp. The LED filament lamp comprises a core column and at least two LED filament strips; each LED filament strip comprises a first electrode end and a second electrode end; the LED filament lamp further comprises connecting structures; a first connecting platform and a second connecting platform are sequentially arranged on the core column from top to bottom; at least two conductive parts matched with the connecting structures are arranged on each of the first connecting platform and the second connecting platform; the connecting structures are arranged at the first electrode ends of the at least two LED filament strips; the first electrode ends of the at least two LED filament strips are connected with the conductive parts of the first connecting platform through the connecting structures; the connecting structures are arranged at the second electrode ends of the at least two LED filament strips; and the second electrode ends of the at least two LED filament strips are connected with the conductive parts of the second connecting platform through the connecting structures. The LED filament lamp has the advantages of being stable and convenient to connect, simple in structure, convenient to produce and capable of saving the cost.

The invention relates to a cadmium negative pole used for a secondary nickel-cadmium battery. The cadmium negative pole comprises a current collector and a negative pole material covered on the current collector, and the negative pole material contains a negative pole active substance and negative pole adhesive, wherein the negative pole material also contains a conductive metallic oxide which contains at least two metallic elements. The growth of cadmium dendritic crystals of a battery prepared by adopting the cadmium negative pole is effectively restrained in a charging process, thereby better meeting the requirements on the low-current charge and the high-current discharge of the battery.