50results about How to "Improve high voltage resistance performance" patented technology

The invention belongs to the technical field of lithium ion batteries, and particularly relates to a polymer electrolyte and a lithium ion battery comprising the same. The preparation method of the polymer electrolyte comprises the following steps: (1) dissolving a functional polymer in an organic solvent, and uniformly mixing to obtain a system A, wherein the mass proportion of the functional polymer in the system A is 0.2-30%; (2) uniformly mixing the system A, a lithium salt and a functional additive to obtain a mixed solution; and (3) carrying out in-situ polymerization on the mixed solution to obtain the polymer electrolyte. The polymer electrolyte has good affinity with anions of the lithium salt, has high conductivity, and greatly improves the performances of a semi-solid battery. The semi-solid state lithium ion battery prepared based on an existing lithium ion battery processing technology has good processing performances and electrochemical performances, and has a certain application prospect.

The invention provides a high-voltage resistant tunneling transistor and a preparation method thereof. The tunneling transistor comprises a drain, an epitaxial layer, a buried layer, a source, a gate dielectric, a grid, a source metal layer and a drain metal layer. According to the tunneling transistor disclosed by the invention, the breakdown resistance capacity of the device under a closed state can be improved, the on resistance of the device is reduced, the power consumption under a large current is reduced, the heat radiation capacity of the device is improved, and the properties of the device under the large current are optimized. According to the preparation method disclosed by the invention, the low-doped or intrinsic epitaxial layer is prepared on the drain, so that the on resistance of the device can be reduced and the power consumption under the large current is reduced; and a non-heavy doped p area is prepared near the source and a non-heavy doped n area is prepared near the drain, so that the breakdown resistance capacity of the device under the closed state can be improved.

The invention belongs to the technical field of lithium ion batteries, and particularly relates to a solid polymer electrolyte containing a boron-fluorine structure as well as a preparation method andapplication of the solid polymer electrolyte. The preparation method of the solid polymer electrolyte comprises the following steps of S1, adding a vinyl boron-fluorine monomer, a vinyl polyether monomer, a modified monomer and a functional polymer into a solvent, adding an initiator for reaction, and performing purification treatment to obtain a polymer system B; S2, adding the polymer system B,a lithium salt, a filler and an auxiliary agent into the solvent, adding a cross-linking agent to obtain a mixed solution, uniformly coating a mold with the mixed solution, and then reacting; S3, obtaining the solid polymer electrolyte; assembling the obtained solid polymer electrolyte, a positive pole piece and a negative pole piece into a solid battery cell, then welding tabs, and carrying outheat treatment and packaging treatment to obtain the lithium ion battery. The solid polymer electrolyte containing the boron-fluorine structure has good high voltage resistance, high conductivity andlithium metal compatibility.

The invention discloses a rear-mounted magnetic-mirror field high-current ion acceleration tube. The rear-mounted magnetic-mirror field high-current ion acceleration tube comprises an external insulating magnetic ring, a grading ring and an internal inlet flange, an inlet beam-limiting conical cylinder, an ultra-thin heat tube, an acceleration electrode, shielding electrodes, weak correcting magnets, an outlet conical cylinder, a magnetic mirror apparatus and an outlet flange; the outer surface of the insulating magnetic ring is waveform and plated with glaze; the ultra-thin heat tube is arranged on the periphery of the inlet beam-limiting conical cylinder; the two shielding electrodes in the middle are provided with the weak correcting magnets respectively; and the magnetic mirror apparatus is mounted on the outlet flange. By virtue of the rear-mounted magnetic-mirror field high-current ion acceleration tube provided by the invention, the high-voltage ignition risk of the accelerationtube is lowered, and high-current ion beam acceleration stability is improved.

The invention discloses an environment-friendly rubber sound-insulating building material, which comprises the following raw materials in parts by weight: 50-60 parts of isoprene rubber, 20-30 parts of fluorosilicone rubber, 3-5 parts of heat stabilizer, and 0.5-0.9 parts of crosslinking agent , 5-9 parts of rare earth oxide filler, 4-8 parts of glass microspheres, 3-5 parts of vulcanizing agent PDM, 2-4 parts of silane coupling agent, 6-10 parts of ore powder. The sound-insulating building material of the present invention has excellent sound-insulating performance and good waterproof effect, is more compact in structure than traditional non-woven materials, has superior sound-insulating and noise-reducing effects, has good mechanical properties, and has strong weather resistance; meanwhile, the preparation method of the present invention , the material cost is low, the raw material is easy to obtain, and the process is simple, easy to operate and realize industrial production, and has high practical value and good application prospect.

The invention discloses a small multi-core high-voltage connector, comprising a socket and a plug, wherein a plug mounting plate of the plug is sleeved inside a plug shell and provided with a plurality of first mounting holes, a plug pressure plate is fixed on the plug mounting plate, pin components are correspondingly arranged in the first mounting holes, each pin component comprises a pin portion and a pin connecting seat, and a high-voltage lead is connected with the pin connecting seat of the pin component; a mounting division plate extends inside a socket shell of the socket, mounting protrusions are formed on the mounting division plate, a second mounting hole is formed in each mounting protrusion, a jacket is arranged in an assembly chamber, a socket pressure plate is arranged in the socket shell, a jack component comprises a jack connecting seat and a jack portion, and a high-voltage lead is connected with the jack connecting seat of the jack component. The connector for connection and transmission of high-voltage signals ensures the transmission of multi-channel and high-voltage signals by adopting a unique interface sealing structure, and is mounted and used in a small space to meet the development requirement of aerial electronic equipment for miniaturization.

The invention provides a high-temperature-resistant, high-voltage-resistant and high-load adhesive for a lithium ion battery and a battery positive pole piece applying the same, and belongs to the technical field of preparation methods of electrode materials. The rigidity and flexibility of the molecular chain of the polyimide adhesive are regulated and controlled by controlling the number of ether bonds in the molecular chain, so that the high-temperature-resistant, high-voltage-resistant and high-load adhesive for the lithium ion battery is provided. According to the adhesive, diamine and dicarboxylic anhydride which contain different numbers of ether bonds are subjected to polycondensation to form a polyamide acid glue solution, and the polyamide acid glue solution is subjected to thermal imidization treatment to obtain the polyimide adhesive. The adhesive disclosed by the invention is excellent in high-temperature resistance, high-voltage resistance and adhesive performance, compared with a traditional adhesive positive pole piece, the lithium ion battery positive pole piece applying the adhesive can load more active substances, the specific discharge capacity of a lithium ion battery is improved, the high-temperature resistance and high-voltage resistance of the pole piece are also obviously improved, and the cycle performance and the service life of the lithium ion battery are improved.

The invention belongs to the technical field of lead-acid storage batteries, and discloses a method for preparing flame-retardant plastic shells for lead-acid storage batteries. The method includes steps of preparing modified brucite; preparing modified mica; preparing modified composite flame retardants; mixing raw materials with one another; carrying out injection molding and the like. Sodium bicarbonate is loaded on diatomaceous earth to obtain the composite flame retardants. The method has the advantages that the prepared plastic shells for the lead-acid storage batteries are high in mechanical strength and impact-resistant strength; the flame-retardant plastic shells are good in toughness and high in tensile strength and bending modulus; the flame-retardant plastic shells are good inflame-retardant property, and the flame-retardant properties of the flame-retardant plastic shells are far higher than requirements on flame-retardant properties of plastics in national standards; theflame-retardant plastic shells are excellent in heat stability and good in high-voltage-resistant performance.

The invention relates to an electrolyte for a lithium ion battery. The electrolyte includes lithium salt, an organic solvent and an additive, and tris (trimethylsilyl) boron is adopted as the additive. The electrolyte is applied to the lithium ion battery, the work voltage of the electrolyte ranges from 4.5 V to 4.7 V, the work temperature range is the indoor temperature of 60 DEG C, the good high temperature and high voltage resisting circulating performance is achieved, and the high temperature and high voltage functional nonaqueous electrolyte is simple and easy to obtain.

The invention discloses a cable sheath material used for electric engineering, and belongs to the technical field of cable sheath materials. The cable sheath material comprises the following raw materials in parts by weight: 10-20 parts of high-density polyethylene, 70-80 parts of an ethylene-vinyl acetate copolymer, 12-16 parts of fluorosilicone rubber, 8-12 parts of ethylene-propylene-diene-terpolymer rubber, 1-3 parts of stearic acid, 6-8 parts of brominated polystyrene, 7-9 parts of syderolite, 2-4 parts of a phosphate, 5-7 parts of aluminium hydroxide, 6-8 parts of nano-silica, 1-3 parts of an antioxidant, 0.5-1.5 parts of an ultraviolet light absorber, 17-19 parts of a plasticizer and 1-2 parts of an antistatic agent. The invention also discloses a preparation method of the cable sheath material used for electric engineering. The cable sheath material used for electric engineering provided by the invention is simple in preparation, low in environmental pollution, and has good mechanical strength and flame retardance.

The invention provides a capacity-increasing, energy-saving and inflaming-retarding power cable. The portion outside a conductor of the capacity-increasing, energy-saving and inflaming-retarding power cable is sequentially wrapped by a conductor shielding layer, an insulation layer, an insulation shielding layer, a copper strip lapping layer, a galvanized steel strip armoring layer, an inflaming-retarding layer and a sheath layer. The capacity-increasing energy-saving and inflaming-retarding power cable has the advantages of being energy-saving, tensile, fire-proof, weather-resistant, good in bending radius and the like, and especially suitable for being used as main line cables in projects like power stations, airports, train stations, subways, buildings and tunnels.

The invention provides a flat plate type totally-sealed low-temperature plasma excitation source based on a dielectric barrier discharge technology, wherein the flat plate type totally-sealed low-temperature plasma excitation source is both capable of eliminating air background interferences and improving the detection sensitivity of a target component. In a technical solution, the flat plate type totally-sealed low temperature plasma excitation source is characterized by being composed of upper ceramic pieces (1), lower ceramic pieces (2) and surrounding side faces (3); the upper ceramic pieces (1) and the lower ceramic pieces (2) are adhered in parallel through the surrounding side faces (3) to form a hollow discharge chamber (8); tin foil paper (4) is respectively adhered on the upper ceramic pieces (1) and the lower ceramic pieces (2) to be used as discharge electrodes; and quartz window pieces (5), air inlets (6) and exhaust ports (7) are respectively arranged on the surrounding side faces (3).

The invention discloses a preparation method of a sulfonyldiimidazole-based ionic liquid. The preparation method comprises the steps of adding a certain quantity of imidazole into a nonaqueous solvent, stirring to allow full dissolution, reducing the reaction temperature, dropwise adding sulfonyl chloride, removing the nonaqueous solvent after reaction, crystallizing to obtain sulfonyldiimidazoleintermediate, continuing to dissolve the intermediate in another nonaqueous solvent, dropwise adding a halogenated alkane, and allowing to react to obtain alkyl-substituted sulfonyldiimidazole bromide; dissolving the alkyl-substituted sulfonyldiimidazole bromide in water, adding a lithium salt, carrying out ion exchanging, and separating and extracting to obtain the sulfonyldiimidazole-based ionicliquid. The sulfonyldiimidazole-based ionic liquid provided herein has novel structure and high reaction yield; when applied as a lithium-ion battery electrolyte additive, the sulfonyldiimidazole-based ionic liquid can improve evidently the high voltage resistance of batteries.

The invention discloses a high-adhesion shock-resistant sealant for insulating glass, belonging to the technical field of sealants. The high-adhesion shock-resistant sealant for insulating glass comprises the following raw materials in parts by weight: 45-50 parts of organic hydroxy silicone, 14-16 parts of organic methyl silicone, 11-13 parts of methylsilane, 14-17 parts of modified silicon dioxide, 7-9 parts of red phosphorus, 4-6 parts of resorcinol bis(diphenyl phosphate), 8-10 parts of calcium carbonate, 3-5 parts of titanium dioxide, 1-3 parts of dibutyltin dilaurate, 2-4 parts of aminosilane, 3-5 parts of fluorosilicone rubber, a right amount of water, 1-2 parts of antibacterial agent and 9-11 parts of plasticizer. The invention also discloses a preparation method of the high-adhesion shock-resistant sealant for insulating glass. The sealant has the advantages of simple preparation process, favorable flame retardancy, favorable high-temperature resistance, excellent shock strength, excellent adhesion capacity and long service time.

The invention relates to a preparation technology of lithium ion battery electrolytes, and aims to provide a preparation and application method of a composite single-ion solid electrolyte. The methodcomprises the steps of: taking p-styryl fluoro alkyl sulfimide lithium, acrylate polyether, nitrile imidazole type ionic liquid and a silane coupling agent KH-570, and performing free radical polymerization under the stirring condition and the initiation of ultraviolet light to prepare a copolymer; uniformly dispersing the copolymer and an inorganic nano material in a solvent to prepare a castingsolution; pouring the casting solution on a clean membrane-making glass mould uniformly, and transferring the membrane-making glass mould to a vacuum drying oven; and performing heating to completelyvolatilize the solvent, dehydrating, condensing and crosslinking the polymer to obtain a membranous composite single-ion solid electrolyte. The composite single-ion solid electrolyte obtained by the invention has the higher ionic conductivity and lithium ion transference number and good thermal stability and electrochemical stability, and has the excellent long-cycle performance and high-voltage resistance when used in a lithium ion battery; and moreover, the preparation method is simple and mild in condition and is capable of achieving large-scale production.

The invention discloses a crosslinking type polyaryletherketone based dielectric composite material as well as a preparation method and application thereof. The method comprises the steps: utilizing polyaryletherketone having good thermal and mechanical property and further containing an active functional group (allyl lateral group) as a polymer matrix material; meanwhile, utilizing an inorganic ceramic particle with high insulativity as inorganic filler, performing organic functional modification on the surface of the filler, guiding benzocyclobutene into to form an inorganic ceramic particlewith a reactable functional group and a core-shell structure, utilizing the inorganic ceramic particle as a crosslinking point, generating crosslinking reaction with the polyaryletherketone polymer matrix with the active functional group to form a three-dimensional network structure and preparing the crosslinking type polyaryletherketone based dielectric composite material with good thermal resistance, flexibility and high voltage resistance. The prepared polyaryletherketone based dielectric composite film has the advantages of lower dielectric loss and wider temperature application range; meanwhile, breakdown field strength of the prepared polyaryletherketone based dielectric composite film is obviously improved; thus, higher high voltage resistance under the high temperature can be obtained.