34results about How to "Electrical properties are not affected" patented technology

The pore sealing moisture-proof anticorrosive composite coating material includes pore sealing material and moisture-proof anticorrosive material. The pore sealing material includes gel with high solid phase content as the basic phase and filler(s) in the amount of 10-100 % of the solid phase component. The moisture-proof anticorrosive material is sol, hydrophobic organic matter or their mixture. The pore sealing moisture-proof anticorrosive composite coating material is prepared through the four steps of preparing pore sealing material, preparing moisture-proof anticorrosive material, preparing pore sealing coating and preparing moisture-proof anticorrosive coating. The pore sealing moisture-proof anticorrosive composite coating material has excellent water permeation arresting performance, high hydrophobicity and high corrosion resistance.

The invention belongs to the technical field of crystal growth, and particularly relates to a growing method for inhibiting a defect of a carbon inclusion in a silicon carbide single crystal. The method provided by the invention comprises growth at two stages; different pressures are controlled to inhibit volatilization and dissipation of a silicon component, so that the formation of the inclusion is reduced or even eliminated. According to the growing method provided by the invention, the inhibition of the formation of the carbon inclusion can be realized through adjusting a simple growing process without the need for adding foreign matters in a growing raw material, and the growing method is easy to implement and lower in cost.

The invention relates to photosensitive conductive silver electrode slurry and a preparation method thereof. The photosensitive conductive silver electrode slurry is characterized by being composed of the following components by mass: 5-25% of functional metal powder, 10-15% of adhesion promoter, 2-20% of photosensitive resin, 10-30% of solvent, 1-10% of curing agent, 1-5% of curing catalyst and the balance, conductive silver powder. The photosensitive conductive silver electrode slurry aims at resolving the problems in the using process of the silver electrode slurry in the background technology, is capable of conducting photocuring according to experiments, does not require sintering, enables electric performance of electronic components not to be affected, and is high in electrode accuracy and firm in connection. The preparation method of the photosensitive conductive silver electrode slurry is provided.

The invention provides a preparation method of lithium iron phosphate. Large single-crystal iron phosphate is prepared by the method and by using a fluxing agent, thereby being increased in compactiondensity. By doping the iron phosphate in an iron phosphate stage, a lithium iron phosphate capacity is increased. The method solves the drawbacks in a conventional method, and increases the dischargecapacity of the lithium iron phosphate while increasing its compaction density.

The present invention provides polymer/metal composite fibers and a preparation method thereof. The composite fibers comprise polymer fibers containing metal staple fibers, wherein the metal staple fibers are adopted as the dispersed phase and are distributed in the polymer fibers in a parallel manner along the polymer fiber axis, the polymer is a thermoplastic resin, the metal is at least one selected from a single-component metal and a metal alloy, the melting point of the metal is 20-480 DEG C and is lower than the melting point of the polymer, a volume ratio of the metal staple fibers to the polymer fibers is 0.01:100-20:100, and the volume resistivity of the composite fibers is less than or equal to 1*10<11>[omega].CM. According to the present invention, the fibers are obtained by carrying out melt blending, spinning and heating stretching on the metal and the polymer; the antistatic property, the breaking strength, and the elongation at break of the composite fibers are concurrently increased, the size is reduced, the dyeability is good, and the antistatic property is lasting; and the preparation method is simple and is easily subjected to industrialized mass production.

The invention discloses a preparing method of a solar cell slice with a pattern. The reparation technique disclosed by the invention can make a random pattern locally on the surface of the solar cell slice; and the preparation technique is simple and capable of realizing industrialization rapidly if the same is combined with the current production technique tightly. A solar cell prepared by using the method is free from electrical property loss. The method can be used to draw a pattern in need randomly on the solar cell, so as to meet different demands and to enlarge the application field of the solar cells. The solar cell with the pattern prepared by using the method is simple in structure, distinctive, and suitable for being used as building materials so as to meet different building demands, and has excellent energy saving and environmental protection benefits.

The invention relates to polymer/carbon nanotube/metal composite fiber. The composite fiber comprises polymer fiber containing metal short fiber and carbon nanotube, the metal short fiber is dispersed in the polymer fiber as a dispersion phase and is in parallel distribution along the shaft of the polymer fiber; the carbon nanotube is dispersed in the polymer fiber and distributed among the metal short fiber; a metal is a low-melting-point metal, is at least one selected from single-composition metals and metal alloy, and has the melting point between 20 DEG C to 480 DEG C and lower than a polymer processing temperature; the volume ratio of the metal short fiber to the polymer fiber is 0.01:100-20:100; and the weight ratio of the carbon nanotube to the polymer is 0.1:100-30:100. By using the composite fiber, the volume resistivity is reduced, the wire fracture rate is reduced, and the surface of the fiber is smooth. The preparation method is simple, relatively low in production cost and easy for industrialized batch production.

The invention discloses an antistatic wear-resistant floor coating and a preparation method thereof. The coating comprises a component A, a component B and a component C, wherein the component A comprises 30-40 parts by weight of grease polyol; 15 to 20 parts by weight of a conductive material, 20 to 25 parts by weight of a filler, 0.1 to 2 parts by weight of a dispersant, 0.1 to 1 part by weightof an antifoaming agent, 0.1 to 1 part by weight of a wetting agent, 0.1 to 1 part by weight of a leveling agent, 3 to 8 parts by weight of zeolite powder, 10 to 15 parts by weight of a pigment and 2to 5 parts by weight of polytetrafluoroethylene wax powder; the component B comprises the following components in parts by weight: 5-20 parts of grease polyol and 70-95 parts of polyisocyanate; and the component C is 100 parts by weight of quartz sand or corundum powder. The floor coating is convenient to operate and low in consumption, and can meet the requirements of production plants, assemblyworkshops and the like on anti-static performance.

The invention provides an electrode plate and a lithium ion battery comprising the same. The electrode plate of the present invention comprises: a current collector having two opposite surfaces; an active material layer coated on at least one surface of the current collector; a first coating layer coated on the active material layer; and a second coating layer coated on the first coating layer; wherein the first coating at least comprises a first polymer and a first conductive agent; and the second coating includes at least a second polymer. According to the invention, by constructing the double-layer coating, not only can the needling safety of the battery be improved, but also the electrical performance of the battery can be ensured not to be influenced to the greatest extent.

A high-voltage insulating composite paint for the high-voltage (69 KV or more) insulator is prepared from polydimethyl siloxane, dried trihydrated alumina, dye cream, filler, organosilicon cross-linking agent, adhesion promoter, condensating catalyst and dried hydrocarbon solvent. It can suppress electric leakage and spark.

The invention provides a pole piece and a lithium ion battery. The pole piece comprises a substrate, the substrate comprises a current collector and a protective layer arranged on the surface of the current collector, and an active material layer is further arranged on the protective layer; the protective layer comprises, by mass, 62%-96% of an inactive material, 0.1%-8% of a conductive agent and 3%-30% of a binder, the inactive material comprises inorganic particles and a carbon layer coating the surfaces of the inorganic particles, and the mass of the carbon layer is smaller than 10% of the mass of the inorganic particles. The pole piece provided by the invention can solve the problem that the safety and the electrical property of the lithium ion battery cannot be considered at the same time.

The invention provides a pole piece and a lithium ion battery. The pole piece comprises a substrate, the substrate comprises a current collector and a protective layer arranged on the surface of the current collector, and an active material layer is further arranged on the protective layer; the protective layer comprises the following components in percentage by mass: 62%-97% of a non-active material, 0.1%-8% of a conductive agent and 3%-30% of a binder, and the resistivity of the protective layer is 500-5000 omega.cm. The pole piece provided by the invention comprises the protective layer, and the mass fraction of each component in the protective layer and the resistivity of the protective layer are controlled, so that the problems of fire outbreak, aging and the like of the lithium ion battery under the conditions of mechanical abuse and the like are effectively solved, and meanwhile, the electrical property of the battery is basically not influenced; the problem that safety and electrical performance of the lithium ion battery cannot be considered at the same time is solved.

The invention relates to a field effect transistor structure, an associated semiconductor storage cell, and a corresponding production method. A diode-doping area (4) within a semiconductor substrate (1) is embodied with a field effect transistor structure (S/D, 3, K) while an electrically conducting diode-connecting layer (5) connects a control layer (3) of the field effect transistor structure to the diode-doping area (4) so as to create a diode (D), whereby excess charge carriers (L) in the semiconductor substrate (1) can be eliminated such that an undesired body effect is prevented.

The invention discloses a hot carrier injection type single-pixel photoelectric detection device, a preparation method and a system. The method comprises the following steps: depositing metal on the surface of a substrate, and annealing to form metal nanoparticles; forming a two-dimensional semiconductor layer on the surfaces of the metal nanoparticles by adopting a chemical vapor deposition method, and forming a steep metal-semiconductor Schottky heterojunction with a clean interface; and preparing a grid electrode, a grid dielectric layer, a source electrode and a drain electrode on the semiconductor layer to obtain the hot carrier injection type single-pixel photoelectric detector. A metal-semiconductor Schottky heterojunction with a clean interface is formed, local surface plasmons of metal nanoparticles are subjected to non-radiative attenuation to generate hot carriers under illumination, and the hot carriers pass through a Schottky barrier between metal and a semiconductor to be injected into the semiconductor, so that the metal-semiconductor Schottky heterojunction with the clean interface is formed. Picosecond-level ultrafast transmission of hot carriers and ultrafast response to incident light are realized; and single-pixel photoelectric imaging with ultra-high response speed, wide spectrum and low cost can be realized.

The invention provides a diaphragm, a preparation method thereof and a lithium ion power battery comprising the diaphragm in order to improve the needling safe passing performance of a battery cell and ensure that the electrical performance of the battery cell is not affected, and belongs to the technical field of batteries. According to the specific scheme, the diaphragm comprises a diaphragm substrate layer and a PVDF coating, wherein the PVDF coating is arranged on one side or two sides of the diaphragm substrate layer, the PVDF coating comprises PVDF and nano copper powder, and the nano copper powder is dispersed in the PVDF. According to the high-safety lithium ion power battery diaphragm provided by the invention, by adopting the ceramic diaphragm in which a trace amount of nano copper powder is mixed in the PVDF glue coating, the heat-conducting property of the diaphragm is greatly enhanced, the needling safety of the high-capacity lithium-ion power battery cell is effectively improved, particularly the safety of the power type lithium-ion power battery cell with low coating surface density is improved, and meanwhile, the electrical property of the battery cell is not influenced.