133results about How to "Improve life performance" patented technology

The present invention provides a pulsed carbon plasma apparatus to produce a diamond-like carbon coating over an extended object, the coating having a high degree of thickness uniformity achieved by scanning the plasma flow over the surface of the object. The pulsed carbon plasma apparatus of the invention comprises a carbon plasma flow scanning device having at least one pair of deflecting coils, where the deflecting coils have, in the scanning plane, a different number of turns on opposite sides. The object may be made of metal, ceramic, glass or plastic. The coatings may be used to improve life and operating performance of tools and machine parts, and as decorative coatings.

The intensified tester includes load maintainer, test head parts, lubricating mechanism, control system and drive gear. The test head parts include test head and seat of test head. The test head is connected to the drive gear, and load maintainer. The control system is connected to the drive gear, the load maintainer, and the lubricating mechanism. The drive gear supplies power needed for test. The load maintainer supplies load needed for test. The lubricating mechanism makes tested bearing lubricating and cooling down adequately under normal condition. The control system is in use for controlling electric operations, protecting and recording test parameters, monitoring operational aspect of test, analyzing test procedure, test result, and carrying control feedback properly. Features are: reasonable design, compact structure, capable of presetting, measuring, controlling and auto recording test parameters. The tester can make alarming and stopping operation, and printing out cause.

A composite utility blade and method of making such a blade involves butt joining a high speed or tool steel wire to a front edge of an alloy steel backing strip. The wire defines a predetermined cross-sectional shape that substantially corresponds to the cross-sectional shape of the cutting edge of the blade. The wire is electron beam welded to the backing strip to form a composite strip defining a first metal portion formed by the alloy steel backing strip, a second metal portion formed by the high speed or tool steel wire, and a weld region joining the first and second metal portions. The composite strip is then annealed, and the annealed strip is straightened to eliminate any camber therein. The annealed composite strip is then hardened such that the first metal portion defines a first surface hardness and the second metal portion defines a second surface hardness greater than the first surface hardness. The hardened strip is then subjected to tempering and quenching cycles, and facets are formed on the edge of the second metal portion to form a straight, tool steel cutting edge. The composite strip is then scored at axially spaced locations to form a plurality of score lines, and the plurality of score lines define a plurality of blade sections there between. The cutting edge may be coated with AlTiN, TiN, or an inner coating of AlTiN and an outer coating of TiN.

The invention discloses a PDLC composition with a high bonding force. The PDLC composition is prepared from the following raw materials: light-cured prepolymer monomers, a liquid crystal material, a photoinitiator, spacers and a phosphor element providing agent through a light curing reaction. The light adjusting material is applied in a light adjusting membrane or light adjusting glass, has excellent bonding intensity, excellent photoelectric performances and a good service life performance, the problem can be solved that the bonding force is not good when a light adjusting material is used on a PET base material, and different demands of users are met. Compared with the present conventional PDLC light adjusting membranes at market, the PDLC light adjusting membrane has a high membrane transmittance and an obviously low driving voltage, the bonding force performance is excellent, and the provided PDLC light adjusting membrane has obvious visual effects and applicability.

The invention provides a heterocyclic compound and an organic light-emitting device thereof, and relates to the technical field of organic photoelectric materials. The heterocyclic compound provided by the invention has a high refractive index, the refractive index can reach 1.95-2.10, and when the heterocyclic compound is used as a covering layer material, the transmittance of a semi-transmissiveelectrode can be improved, the light emitting direction can be adjusted, and the light emitting efficiency can be improved. Secondly, according to the heterocyclic compound provided by the invention,by optimizing the structure and introducing nitrogen-containing five-membered heterocycle or six-membered heterocycle, benzoxazole or benzothiazole groups, the glass-transition temperature is increased, the film-forming property and stability are better, and the service lifetime of the device can be effectively prolonged when the heterocyclic compound is used as a covering layer material of the organic light-emitting device.

A flooded-type lead-acid battery in which charging is intermittently carried out in a short period of time and high-rate discharge to a load is carried out in a partial state of charge, wherein the charge acceptance and service life characteristics under PSOC are improved by using a positive plate in which the total surface area of the positive active material per unit of the plate pack volume is set in a range of 3.5 to 15.6 m²/cm³; a negative plate with improved charge acceptance and service life performance obtained by adding a carbonaceous electrically conductive material, and a formaldehyde condensate of bisphenol and aminobenzene sulfonic acid to the negative active material; and a separator formed from a nonwoven in which a surface facing the negative plate is composed of material selected from glass, pulp, and polyolefin.

A method for producing a polymer electrolyte membrane type fuel cell including a polymer electrolyte membrane, fuel and air electrodes that sandwich therebetween the polymer electrolyte membrane and that each include a gas diffusion layer and a catalyst layer provided in contact with the polymer electrolyte membrane, and separators provided in contact with the gas diffusion layers. A paste containing at least a carbon powder having a catalyst supported thereon is spread over a predetermined support, and the coated support is dried to form the catalyst layer. A cracking occupation area on the electrodes is controlled to a predetermined tolerance by controlling at least one of (1) a thickness of the catalyst layer, (2) a kind of carbon having the catalyst supported thereon, and (3) a drying rate of a solvent of the paste.

The invention discloses a preparation method for a manganese dioxide-carbon nanotube-foamed nickel composite material capacitor electrode, and the method comprises the following steps: (1), preparinga carbon nanotube-foamed nickel composite: selecting foamed nickel as a catalysis and substrate material, directly carrying out the growth of a carbon nanotube through a chemical vapor deposition method, and obtaining the carbon nanotube-foamed nickel composite; (2), synthesizing a manganese dioxide-carbon nanotube-foamed nickel composite material through a hydrothermal method: preparing lauryl sodium sulfate: KMnO4 solution with the concentration ratio being in the section of 0.5-5: 5-15, carrying out the dripping of the mixture into a reaction still after the full mixing, putting an MWNT-foamed nickel material in the reaction still for reaction under the temperature of 100-200 DEG C for 1-15h, and obtaining the manganese dioxide-carbon nanotube-foamed nickel composite material; (3), obtaining a manganese dioxide-carbon nanotube-foamed nickel composite material capacitor electrode after the preforming of the manganese dioxide-carbon nanotube-foamed nickel composite material. The method is advantageous in that an MnO2-MWNT-foamed nickel composite material capacitor displays the excellent structure and electrochemical and supercapacitor characteristics, and has the remarkable technological advantages.

The present invention provides an epitaxial structure of an ultraviolet LED with an aluminum nitride film and a growth method of the aluminum nitride film. The growth method of the aluminum nitride film includes the following steps that: 1) a metal layer is grown on a substrate; 2) annealing treatment is performed on the substrate, so that the metal layer can form a metal ball-shaped object layer;3) etching treatment is performed on the substrate, so that a pitted substrate can be formed; 4) when temperature rises to 600 to 1200 DEG C, trimethylaluminum and ammonia gas are introduced into a reaction chamber, so that a buffer growth layer can be to grown; 5) when temperature rises to 1250 to 1450 DEG C, first growth mode/second growth mode alternate cyclic growth is carried out, so that anintermediate-state aluminum nitride layer can be formed; and 6) when temperature drops to 1100 to 1250 DEG C, the trimethylaluminum and ammonia are introduced into the aluminum nitride layer, so thatthird growth mode growth can be performed. The aluminum nitride film obtained by using the method has good crystal quality; and the surface cracks of the aluminum nitride film can be reduced.

In a positive electrode current collector for a lead-acid battery including a coating of tin dioxide formed on the surface of a current collector substrate of titanium or a titanium alloy, the half width of a peak with the maximum intensity among peaks of tin dioxide in the x-ray diffraction pattern of the positive electrode current collector for a lead-acid battery is 1° or lower.

A lead acid storage battery according to the present invention comprises a battery container for housing a plurality of cells, a middle lid for covering the battery container, and an upper lid for covering the middle lid, wherein, on the upper surface of the middle lid, a gas discharging port for discharging the gas generated inside of the cell and an electrolyte recirculating port for recirculating the moisture to be discharged along with the gas within the cell are formed as corresponding to each cell. A plurality of exhaust chambers separated by an exhaust chamber partition are formed in a space surrounded by the middle lid and the upper lid, and a mechanism for collectively exhausting the gas discharged from the gas discharging port to the outside of the battery by interconnecting the plurality of exhaust chambers is comprised.

The invention provides an intelligent formation method of a lithium ion battery. The parameters of the battery are detected in a formation process, relevant parameters of current and voltage in the formation process are formulated according to the condition of the battery, and a formation procedure is formulated according to internal conditions of each battery, so that the generation rate of poor products in the formation process is reduced, and the performance of the lithium ion battery is improved. According to the method provided by the invention, the rate of qualified lithium ion batteries is increased, the life performance of the lithium ion batteries is improved, and the production cost is lowered.

A charging method of a nonaqueous electrolyte secondary battery which comprises a positive electrode plate including a lithium-manganese composite oxide with spinel structure; a negative electrode plate including graphite capable of storing and discharging lithium; and nonaqueous electrolyte. When the ratio of a theoretical capacity of the negative electrode plate to a theoretical capacity of the positive electrode plate is set as RN/s and the graphite which has stored lithium by charging is represented by Li_xC₆, the nonaqueous electrolyte secondary battery is characteristically charged so that the maximum value Xmax X can have satisfies the following Conditions (1) and (2):

Xmax≦0.75  Condition (1)

Xmax≦−0.70R_N/S+1.31  Condition (2)

The life performance is remarkably improved by charging the nonaqueous electrolyte secondary battery while satisfying the Conditions.

An apparatus configured to be placed about an implantable medical device having a face with a geometric center offset from a center of a recharge coil of the device includes first and second opposing major exterior surfaces, and a continuous exterior side surface joining the first and second opposing major exterior surfaces. A cavity is defined between, and an opening is formed by, the first and second major surfaces and the continuous side surface. The opening is in communication with the cavity and is configured to allow the device to access the cavity. An asymmetric region, adjacent to the cavity, is formed between a portion of the first and second major surfaces and the continuous side surface. The asymmetric region is configured to shift the geometric center of the combined apparatus and device, when the device is received in the cavity, towards the center of the recharge coil.

Provided is a fluid-type lead storage battery wherein charging is performed intermittently for a short duration each time, and high-rate discharging to a load is performed in a partial state of charge, said lead storage battery improving the charge acceptance and the PSOC life characteristic relative to the prior art. A positive electrode plate is used that has a positive-electrode active substance total surface area per unit electrode plate group volume set in a range of between 3.5 and 15.6 m2/cm3. A negative electrode plate is used in which a carbonaceous conductive material and an organic compound that inhibits coarsening of a negative-electrode active substance accompanied by charging/discharging are added to the negative-electrode active substance. Moreover, compounds chosen from among cationic coagulant, cationic surfactant and phosphoric acid are added to an electrolyte, improving the charge acceptance and the life performance.

The invention provides a formation method of a power lithium ion battery. The power lithium ion battery comprises a positive electrode, a separator between the positive electrode and the negative electrode; the positive electrode is a composite positive electrode formed by mixing a plurality of active substances; wherein the plurality of active substances comprise LiNi0.15Mn0.65Co0.15Mg0.03Al0.02O2, Li0.95Na0.05Mn2 and LiMn0.75Co0.2Mg0.03Al0.02O2; wherein the mass ratio of the LiNi0.15Mn0.65Co0.15Mg0.03Al0.02O2 to the Li0.95Na0.05Mn2 to the LiMn0.75Co0.2Mg0.03Al0.02O2 is 33: 42: 35-26: 60: 14.The formation method comprises the following steps: injecting a first electrolyte into an assembled battery, and carrying out pre-formation under a first predetermined voltage; injecting a second electrolyte of which the additive is FEC, and formally forming at a voltage higher than a first preset voltage. According to the formation method, the rate capability of the battery can be improved and the cycle life of the battery can be prolonged by a formation mode set for a specific active substance.

The present invention relates to a wavy-patterned monowire for cutting hard material such as hard glass, semiconductors and superhard alloy. The wavy-patterned monowire for cutting can maintain the performance of an abraser and improve cutting workability and the quality of a cut surface.

A flow-adjusting valve including a valve base and a valve rod. The valve base has arranged within a valve cavity thereof a valve opening. The valve rod opens or shuts the valve opening. The valve rod is tube-shaped, and the lower part thereof is a cylinder. The valve base has arranged at circumferential positions around the valve opening a sealing stepped surface. A lower end face of the valve rod is sealedly in contact with or disengaged from the sealing stepped surface. Furthermore, the valve opening has protruding upwards along the axial direction thereof a sleeve protrusion part. The sealing stepped surface is arranged within the sleeve protrusion part. The structure of flow-adjusting valve on the one hand balances a refrigerant pressure exerted along the axial direction of the valve rod while on the other hand improves the service life and sealing performance of the valve rod.