40results about How to "Good contact conductivity" patented technology

The present invention provides a non-aqueous electrolyte secondary battery comprising a positive electrode, a negative electrode having a negative active material, and a non-aqueous electrolyte; characterized in that said negative active material contains composite particle (C), which has silicon-containing particle (A) and electronic conductive additive (B), and carbon material (D), wherein the weight of said electronic conductive additive (B) falls within the range of 0.5 wt. % to 60 wt. % to the weight of said composite particle (C). The negative active material contains silicon which is capable of performing high discharge capacity, so that a non-aqueous electrolyte secondary battery having a large discharge capacity can be obtained. In addition, since the negative active material contains the electronic conductive additive (B) and the carbon material (D), the contact conductivity between the silicon-containing particle (A) or between the negative active material improves and, as a result, a non-aqueous electrolyte secondary battery having satisfactory cycle performance can be attained.

The invention discloses a preparation method of a lithium-ion battery with a conductive polymer coated positive electrode. The positive electrode sheet is a positive electrode slurry made of a positive electrode material, a conductive agent, a positive electrode binder, a conductive polymer or a conductive polymer monomer, and a solvent. The negative electrode sheet is composed of negative electrode material, thickener, negative electrode binder, and solvent mixed into negative electrode slurry and negative electrode current collector. The specific capacity of the battery is increased by 10-20% by adding a conductive polymer or a conductive polymer monomer to the slurry for coating. The invention effectively improves the performance of the prepared positive electrode material, and because the method is simple, the product cost is reduced, the process is simplified, and the method is suitable for large-scale production.

The invention discloses a power polymer lithium ion battery and a fabricating process thereof. A positive plate comprises modified lithium iron phosphate, conductive agent, positive adhering agent, dispersant and positive current collector. A negative plate comprises graphite, conductive agent, negative adhering agent and negative current collector. The fabricating process comprises the following steps: firstly, dispersing the conductive agent; secondly, dispersing the modified lithium iron phosphate; thirdly, adding the efficient organic adhering agent so as to increase the adhering property among grains of the conductive agent, between the conductive agent and the positive material, and between the conductive agent and the positive material and the current collector, and to increase the electrode contact conductivity and electron conductivity, thereby greatly improving the battery high-rate charge and discharge property. The invention has the advantages of simple process, easy control, good product safety and long circulation service life.

The invention provides a concave pit lithium ion battery current collector as well as a manufacturing method and equipment of concave pit lithium ion battery current collector. The manufacturing method comprises the following steps: filling the part between the current collector and a leftward roller with grains with the rigidity which is greater than that of a current collector material by a leftward sand filling hopper above the leftward roller when the current collector passes through a rolling station between the leftward roller and a rightward roller; extruding by the leftward roller to form a left concave pit in one side of the current collector by the grains; or/and filling the part between the current collector and the rightward roller with the grains with the rigidity which is greater than that of the current collector material by a rightward sand filling hopper above the rightward roller; and extruding by the rightward roller to form a right concave pit in one side of the current collector by the grains. According to the concave pit lithium ion battery current collector as well as the manufacturing method and equipment of of the current collector, the contact face between an active material of the concave pit lithium ion battery current collector and the surface of the current collector is enlarged and the surface sticking area between the active material and the current collector is enlarged, so that the adhesion strength is easy to enhance and the contact conductivity is improved; a process for manufacturing the concave pit lithium ion battery current collector by using a sand filling and rolling method is simple and is suitable for large-scale industrial production.

The invention discloses an intelligent magnetic drive self-repairing flexible pressure sensor and a preparation method therefor. According to the scheme of the invention, the method comprises the steps: preparing a silver nanowire and linear needle-shaped magnetic nickel; forming a high-molecular base material with a self-repairing function through combination; mixing the silver nanowire and linear needle-shaped magnetic nickel, adding the mixture to the base material, and carrying out the crosslinking, solidifying and film forming; packaging a self-repairing flexible film, placing the self-repairing flexible film into a magnetic field for magnetizing orientation, and obtaining the intelligent magnetic drive self-repairing flexible pressure sensor. The method is advantageous in that 1, the silver nanowire and linear needle-shaped magnetic nickel are compounded, the linear needle-shaped structure can be effectively configured with the silver nanowire, and a conduction circuit is more effective; 2, the magnetic drive self-repairing flexible pressure sensor employs a dimer acid as a monomer unit, thereby enabling a prepared self-repairing flexible film to be excellent in mechanical performance; 3, the magnetic field is applied to the die, thereby enabling the anisotropic magnetic nickel to be oriented in the high-molecular base material, and achieving the intelligent magnetic drive.

The invention relates to an electrochemical machining technology, in particular to an ultrasonic assistance supercritical electro-deposition device. According to the ultrasonic assistance supercritical electro-deposition device, supercritical carbon dioxide fluid serves as a carrier, ultrasonic waves serve as an assistance, and therefore different mechanisms can act at the same time, superposition, cooperating and complementary effects are generated, the surface quality, the mechanical property and other properties of a composite coating are effectively improved. The ultrasonic assistance supercritical electro-deposition device comprises a reaction still (1) and an electro-deposition clamp (2), and the reaction still (1) is provided with a heating assembly, an ultrasonic wave assembly and a magnetic stirring assembly; and the electro-deposition clamp (2) comprises a flange end cap, a guide rail assembly, an electrode clamping plate assembly and a locking mechanism assembly. The ultrasonic assistance supercritical electro-deposition device is reasonable and simple in structure, the reaction still has the heating, ultrasonic assistance and magnetic stirring functions at the same time, ultrasonic assistance supercritical electro-deposition can be achieved, and the electro-deposition efficiency and the coating quality are improved.

[Object] To increase contact conductivity with carbon and durability of a titanium or titanium alloy material for a fuel cell separator so as to increase the lifetime of a fuel cell.

[Solution] Provided is a titanium or titanium alloy material for a fuel cell separator having a surface shape in which a plurality of projections are distributed, and a titanium oxide film on a surface of the projections. Fine projections are assumed to increase the contact conductivity remarkably. The present invention has high usability in the cell manufacturing industry.

The invention relates to a rotary impact current prevention switch device based on a magnetorheological effect, which comprises an enclosed insulator square box, wherein the enclosed insulator squarebox is arranged between two magnets; and a magnetorheological material is packaged in the enclosed insulator square box. Both upper and lower surfaces of the enclosed insulator square box respectivelyare metal electrodes, and the metal electrodes are connected with wires. Four front, rear, left and right surfaces of the enclosed insulator square box are insulation surfaces, wherein the front andrear surfaces are respectively connected with rotating shafts. The enclosed insulator square box is a flat square body. The rotary impact current prevention switch device based on the magnetorheological effect, which is disclosed by the invention, regulates a magnetic field direction applied by the outside by controlling a rotating angle of the magnetorheological material part so as to fulfill theswitch on-off aim, and regulates an on-off speed by controlling a rotating speed. The rotary impact current prevention switch device has the advantages of simple structure, stability, reliability, good reversibility and the like.

An integrated circuit device having a semiconductor substrate includes a gate structure on the semiconductor substrate. Source/drain regions are on opposite sides of the gate structure. A contact pad is on at least one of the source/drain region, and a silicide cap is on a surface of the contact pad opposite the respective source/drain region.

[Object] To increase contact conductivity with carbon and durability of a titanium or titanium alloy material for a fuel cell separator so as to increase the lifetime of a fuel cell. [Solution] Provided is a titanium or titanium alloy material for a fuel cell separator having a surface shape in which a plurality of projections are distributed, and a titanium oxide film on a surface of the projections. Fine projections are assumed to increase the contact conductivity remarkably. The present invention has high usability in the cell manufacturing industry.

The invention relates to the technical field of electric power wiring auxiliary tools, in particular to an electric energy meter wiring terminal which comprises an insulating baffle and a conductive clamp, the insulating baffle is annular, an inner ring is a wiring hole, and the right side face, corresponding to the front side and the rear side of the wiring hole, of the insulating baffle is respectively and fixedly provided with an upper stop block which inclines in a left-high and right-low mode. The wiring terminal is reasonable and compact in structure, use is convenient, the upper stop block and a lower stop block have the effect of preventing wrong wiring, and the insulating baffle is located outside the tail jack of the electric energy meter and has the effect of protecting operators from electric shock during safe operation. An upper conductive clamping plate and a lower conductive clamping plate can clamp a copper core wire and protect the copper core wire from being damaged,the contact area with the inner wall of a meter tail jack of the electric energy meter is increased, screws can be fastened to the upper end face of the upper conductive clamping plate conveniently, the purposes of firm connection and sound contact conduction are achieved, and the wiring terminal has the advantages of being safe, labor-saving, simple, convenient and efficient.

A nano-hole array for improving contact conductance of a conductor element that consists of a first layer and a second layer is provided. The nano-hole array formed between the first and second layers comprises a plurality of holes. The contact conductance of the conductor element is enhanced by reducing the hole size of the hole array, increasing the occupation rate of the hole array, and performing thermal annealing.

The invention relates to the field of polycarboxylic acid water reducing agents, and provides an esterified monomer, a ligand and a conductive slump-retaining polycarboxylic acid water reducer, preparation methods thereof, and a conductive slump-retaining graphene dispersion slurry. The esterified monomer is prepared from allyl polyethylene glycol and 2, 2': 6', 2'-terpyridine-4-formic acid through an esterification reaction. The ligand is formed by polymerizing isopentenyl polyoxyethylene ether, the esterified monomer, unsaturated monocarboxylic acid, unsaturated ester and macrogol ester free radicals. The conductive slump-retaining polycarboxylic acid water reducer is prepared by reacting a ligand with a zinc nitrate solution. The conductive slump-retaining graphene dispersion slurry is prepared by mixing graphene, the conductive slump-retaining polycarboxylic acid water reducer and deionized water. The prepared polycarboxylic acid water reducer is good in adaptability, the slump loss of concrete is small, the special metal complexing structure of the polycarboxylic acid water reducer endows the polycarboxylic acid water reducer with excellent conductivity, and conductive slump-retaining graphene dispersion slurry prepared by compounding the polycarboxylic acid water reducer with graphene is high in stability and has excellent conductivity and slump-retaining performance.

The invention discloses a welding electrode end cleaning device. The welding electrode end cleaning device comprises a base, a stand column, a transverse column, a motor and a cleaning mechanism. The lower end of the stand column is fixedly connected with the base. The stand column is movably connected with a connector. The connector is movably connected with the transverse column. The transverse column is movably connected with a motor base. The welding electrode end cleaning device has the following beneficial effects that redundancies at the tail end of an electrode are fast removed through inner core grinding, good contact electrical conductivity is kept when the electrode is clamped by welding tongs, and the welding quality is improved.

The invention discloses a visual biological membrane culture reactor and an in-situ observation method; the reactor comprises a reactor main body, a reference electrode and a counter electrode; the reference electrode and the counter electrode penetrate through the side wall of the reactor main body and extend into a reaction chamber; the reactor main body comprises a body, a sealing cover, a clamping part, a light-transmitting bottom plate and a conductive probe; the body is provided with a through hollow cavity; the sealing cover is sealed and detachably connected with a port at one end of the hollow cavity; a transparent skylight is arranged in the centre of the sealing cover; the clamping part protrudes outwards relative to the bottom surface of the body; a through hole coaxially penetrating through the hollow cavity is formed in the clamping part; the light-transmitting bottom plate is sealed and detachably connected with a port at the other end of the hollow cavity or the through hole of the clamping part; the inner surface of the light-transmitting bottom plate is a conductive surface or a conductive glass sheet is arranged on the inner side of the light-transmitting bottom plate; one end of the conductive probe extends into the reaction chamber and is in clutch connection with the conductive surface or the conductive glass sheet; and the other end of the conductive probe extends out of the body. According to the invention, the bottlenecks of in-situ sampling, in-situ dyeing and in-situ confocal observation and detection are overcome.

The invention provides an automatic sorting device for diode production and processing. The automatic sorting device comprises a machine frame, a conveying groove, a detection structure and a poking and separating structure, wherein a conveying belt is arranged on the machine frame, the conveying groove comprises a conveying carrier, diode body grooves are formed in the conveying carrier, pin through grooves are formed in the side walls of the diode body grooves, the detection structure is arranged on the machine frame and comprises first detection electrodes and second detection electrodes, pin doors are arranged on the first detection electrodes and the second detection electrodes, a current detection element is arranged on the machine frame, a poking and separating structure is arranged on the side wall of the conveying carrier, and a counting sensor is arranged between each pair of the first detection electrode and the second detection electrode. According to the device, a guiding mode of the pin through grooves and the diode body grooves is adopted to solve the problem that pins are difficult to position diodes arranged on the two sides of a circular tube body; and meanwhile, the conveying groove can superpose the component force of the gravity of a plurality of diodes on the diodes at a detection station, so diode pins extending out of the pin through grooves can be in contact with the pin doors and keep good contact conductivity, and the accuracy of detection and sorting is thus ensured.

The invention relates to the technical field of diving cylinder fittings, and discloses a diving cylinder air pressure induction alarm device. The device comprises a semi-transparent housing with two end openings. One end of the semi-transparent housing is hermetically connected with a mounting end socket which is internally provided with a pressure sensor, and the other end is hermetically connected with a sealing cover. A battery housing is arranged between the mounting end socket and the sealing cover. A battery is mounted in the battery housing. Furthermore two conductive ends of the battery are provided with conductive plates which contact with the two conductive ends. The top of the battery housing is provided with a control circuit board. The end of the control circuit board is assembled with the mounting end socket. The control circuit board is connected with the pressure sensor and the conductive plates. The control circuit board is also provided with an alarm lamp. The device further comprises an antenna between the semi-transparent housing and the battery housing. The antenna is connected with the control circuit board, thereby settling problems of inconvenient air pressure observation and incapability of ensuring safety of a diver in an existing diving cylinder.

The invention discloses a lamp mounting device with a reverse conducting structure. The lamp mounting device comprises a first conducting box and a second conducting box; an elastic grounding assemblyis arranged in the first conducting box, and a first conducting piece guiding opening, a first conducting piece partition wall, a first fixing piece guiding opening, a first fixing piece partition wall, a second conducting piece guiding opening, a second conducting piece partition wall, a second fixing piece guiding opening and a second fixing piece partition wall are sequentially arranged in thecircumferential direction of the lower end of the first conducting box; a first conducting piece is mounted in the first conducting piece partition wall, and a second conducting piece is mounted in the second conducting piece partition wall; and a grounding metal surface is arranged on the upper side of the second conducting box, and a first bent conducting piece, a first fixing piece, a second bent conducting piece and a second fixing piece are sequentially arranged in the circumferential direction of the upper end of the second conducting box. The lamp mounting device can be quickly and conveniently mounted or demounted, and is good in stability and excellent in contacting of the conducting pieces, the conducting pieces are hidden in the conducting piece partition walls and thus are notprone to being touched, and safety is high.

The invention relates to the technical field of lamp decoration lighting accessories, and discloses a patch connecting terminal used for an LED lamp. The connecting terminal comprises a contact face,a short face and a long face, long grooves are formed in the middles of the short face and the long face, the long groove in the short face is perpendicular to the contact face, first groove openingsare formed in the two sides, parallel to the long groove, of the short face, a cuboid is defined by the contact face, the short face and the long face jointly to form the patch connecting terminal, the face opposite to the short face is a first long face, second groove openings are formed in the two sides, parallel to the long groove, of the first long face, and the long groove in the first long face is perpendicular to the contact face, the face opposite to the contact face is a second long face, and a long groove in the second long face is perpendicular to the long groove in the short face and the long groove in the first long face. Through the patch connecting terminal, a power line can be stably and rapidly fixed on a light source board, and the defects that a welding process is used for welding the power line on the power source board, the product reject ratio is high and work efficiency is low are overcome.