59results about How to "Prevent powdering" patented technology

The invention discloses a binder for a lithium ion battery diaphragm, a preparation method and a diaphragm using the same. The binder comprises the following raw materials by weight: 0.5-1 part of a water-soluble polymer, 1-10 parts of a flexible segment monomer, 1-10 parts of a rigid segment monomer, 0.01-0.05 part of an initiator, and 1-10 parts of a plasticizer. The binder for the lithium ion battery diaphragm provided by the invention can be mixed with an inorganic matter to serve as a coating material of the lithium ion battery diaphragm, and the thermal stability and anti-thermal shrinkage performance of the diaphragm can be improved, so that the likely internal short circuit problem caused by poor thermal stability of the existing lithium ion battery diaphragms can be solved, and the diaphragm can have good safety and overcharge tolerance. At the same time, the binder contains polar groups, which can closely bonds with the inorganic matter to improve the wettability and liquid retention of the diaphragm. The flexible segment is introduced while the rigid segment exists, thereby improving the mechanical properties of the binder and guaranteeing the bonding force and the flexibility of the diaphragm.

The invention relates to a ceramic proppant and a preparation method thereof. The ceramic proppant comprises bauxite and trimanganese tetroxide and is characterized by comprising a water-based organic binder; and the mass ratio of the bauxite, the trimanganese tetroxide and the water-based organic binder is as follows: 93-99 mass proportion of bauxite; 1-7 mass proportion of trimanganese tetroxide, 8-15 mass proportion of water-based organic binder and total mass of bauxite and trimanganese tetroxide based on 100 mass proportion. The ceramic proppant has the advantages of lower rate of sintering temperature and low broken rate.

The waste-heat airborne follow device of the internal temperature-saving device relates to the hydrogen-preparing device of the power machine. The waste-heat airborne follow device which has compact structure, uniform heat transmission, stable hydrogen-preparing rate achieved from the splitting or reforming of the alcohol fuel using tail-gas as the head source and the internal temperature-saving device is developed against to the defects of unbalanced heat transmission, easily aging of catalyst, unable to load integral catalyst and fuel system structure and the complex control in the existing patents of ZL94116320.2 and CN1951718A. The adopted technology scheme is: the reactor 2 adopts the straight tube with large external diameter and thin catalyst. The evaporating superheater 16 has the tubular structure. The fuel system structure and the control method of the engine is simplified by the internal temperature-saving device 5.

The invention discloses a mordenite molecular sieve, which is a millimeter-scale spherical molecular sieve; wherein the mordenite molecular sieve is obtained by assembling micron-sized flaky mordenitecrystals; the specific surface area of the mordenite molecular sieve is 200-500 m<2>/g, and the pore volume is 0.1-0.3 cm<3>/g. The molecular sieve is binder-free spherical mordenite suitable for fixed bed and moving bed reactors, wherein the size of the molecular sieve is adjustable within a certain range, and the molecular sieve macroscopically has a millimeter-scale spherical structure and hashigh mechanical strength. The invention further discloses a preparation method of the mordenite molecular sieve and application of the mordenite molecular sieve in acid catalytic reaction and reaction for preparing carbonyl compounds through oxygen-containing compound conversion, the method is high in raw material conversion efficiency and simple and efficient in treatment process, and the mordenite molecular sieve prepared through the method shows good catalytic performance when used as a catalyst.

The invention relates to a preparation method of a powder lithium electrode, which comprises the steps that fillers containing powder lithium are filled in gaps of a foam metal current collector and are pressed to be molded, and then the powder lithium electrode is obtained. According to the preparation method, the electrode containing the powder lithium is adopted, so active substances are pulverized, the specific surface area of the electrode is effectively increased, the discharge current density of the electrode is enhanced, and the battery discharge rate capability is effectively improved, and a metal lithium battery prepared by adopting the electrode can satisfy the requirement of high-power electric energy output; foam copper or foam nickel with a three-dimensional porous structure is adopted as the current collector of the electrode, so direct contact parts of the powder lithium and the current collector of the electrode are guaranteed to be firmly bonded, the bonding force among the powder lithium is guaranteed as well, and powder is effectively prevented from shedding from the electrode when the electrode is used; and conductive powder is mixed into the powder lithium, so the discharge performance of the powder lithium electrode is further improved. The metal lithium battery prepared by adopting the electrode can be widely applied to the fields of high-power hybrid electric tools, electric vehicles, and the like.

The invention discloses an automatic nail clipper which comprises a nail clipper. The nail clipper adopts a disk blade and comprises teeth and a body; and the teeth are arranged surrounding the body. The nail clipper also comprises an opening hole; and the opening hole is arranged in the middle of the body. The automatic nail clipper adopts a cutting way to prevent the generation of powder and peculiar smell; more importantly, the disk blade is sharp, but can not hurt hands or feet, thus achieving the function of pruning freely.

The invention belongs to the field of waste battery recycling, and particularly discloses a method for comprehensively separating and recycling materials in a decommissioned battery, which comprises the following steps of: (1) disassembling the decommissioned battery to obtain a mixture of a positive pole piece and a negative pole piece; (2) soaking the mixture of the positive pole piece and the negative pole piece in water and stirring, so that the positive component material and the negative component material are stripped from the current collector; and (3) secondary sieving is carried out, so that a powdery negative electrode component material, a sheet-shaped positive electrode component material, copper and aluminum are obtained through separation and recovery. Based on the principle that positive and negative binders have different properties and the characteristic of good ductility of a metal foil material, for a waste battery with low binder content (less than or equal to 6%) in a positive material, a mixture of a positive pole piece and a negative pole piece is stirred in a water environment and is matched with secondary sieving treatment, so that the positive and negative binders in the waste battery are uniformly mixed. Powdery negative electrode component materials, sheet-shaped positive electrode component materials, copper and aluminum can be recycled, and efficient separation and recycling of the positive electrode materials and the negative electrode materials and the current collector are achieved.

The invention discloses a two-dimensional catalytic material and preparation and application thereof. The two-dimensional catalytic material is characterized in that a transition metal foil with the micron-order thickness serves as a base material, a two-dimensional matrix carrier with light weight, flexibility, high specific surface area and roughness is prepared through pretreatment, anodic oxidation, acid etching regulation and control, hole breaking and thermal stabilization treatment, and on the basis of the carrier, the two-dimensional ozone catalytic material is prepared by taking metal salt and/or organic matter as a precursor and adopting vacuum impregnation, in-situ deposition and thermal reduction technologies to load active metal and/or non-metal active components in situ. The two-dimensional material has the advantages of high specific surface area, high roughness, high mechanical strength, light weight, flexibility and the like; when applied to water treatment, the catalytic material has the advantages of rapid interface mass transfer, excellent catalytic performance and the like; and meanwhile, the preparation process of the two-dimensional catalytic material has the characteristics of simple method, easiness in adjustment of process parameters, easiness in large-scale production, low preparation cost and the like.

The invention discloses a crushing device for thrown cast sheets. The crushing device comprises a driving wheel disc, a collecting bin and a crushing bin; the driving wheel disc is fixed to the side surface of a roll wheel, is coaxial with the roll wheel and is driven to rotate by a copper roll motor, and first transmission teeth are arranged on the outer edge of the driving wheel disc; the collecting bin is located at the lower side of the roll wheel and is used for collecting the thrown cast sheets; the crushing bin is located at the lower side of the collecting bin and is provided with crushing teeth and crushing hoppers meshed with the crushing teeth, bearing supports are arranged at one ends of the crushing teeth and one ends of the crushing hoppers, and first driven wheel discs and second driven wheel discs meshed with the first driven wheel discs are arranged at the other ends of the crushing teeth and at the other ends of the crushing hoppers respectively; the first driven wheel discs are driven by the driving wheel disc to rotate through a transmission chain and drive the crushing teeth and the crushing hoppers to rotate axially and reversely. According to the invention, the cast sheets can be uniformly crushed, and the work efficiency of crushing the thrown cast sheets can be greatly improved.

The invention mainly relates to a method for preparing a carbon fiber composite material by taking a turning material of a carbon/carbon composite material as a main raw material and commercial chopped carbon fibers as a reinforcing phase, mainly aiming at the problems of resource recovery and reutilization in the production process of the carbon/carbon composite material. According to the method, turning materials and leftover materials generated in the workpiece turning process serve as main raw materials, the raw materials are subjected to pretreatment modification, wet mixing, drying, cold press forming, heat treatment and the like, the carbon/carbon composite material with high mechanical performance is prepared, and the material has wide application in the photovoltaic field, the heat treatment field, the friction field and the like. According to the invention, the effective utilization of resources is realized, the production cost is reduced, the solid wastes generated in the production process are effectively reduced, and the problem of environmental pollution is also well improved.

Glue for battery pole piece surface treatment is provided. The glue includes, by mass, 0.1-2% of carboxymethylcellulose sodium, 0.1-4% of polyvinyl alcohol, 0.3-3% of acrylic acid-vinyl alcohol copolymer, and 0.1-1% of chopped fibers, with the balance being water. A preparation process of the glue is also provided. The hydrophilicity and flexibility of a battery pole piece coated with the glue areobviously improved than those of a battery pole piece coated with tissue paper, and the battery pole piece coated with the glue is free of cracking and powder falling. In addition, a process of applying the glue on the surface of a battery pole piece can replace the original process of wrapping a battery pole piece with tissue paper, which can greatly improve the production efficiency and is beneficial to large-scale production.

The invention discloses a high reliability electrochemical energy storage device vibration-proof structure. The high reliability electrochemical energy storage device vibration-proof structure comprises an outer shell, an electricity core and a current collector, the electricity core is arranged in the outer shell and electrically connected with the current collector, and an electrolyte is filled between the outer shell and the electricity core. The high reliability electrochemical energy storage device vibration-proof structure is characterized in that a plurality of grooves are arranged on the outer shell, a plurality of elastic parts are disposed on the outer surface of the electricity core, and the position of the electricity core in the outer shell is limited through the grooves and the elastic parts. According to the high reliability electrochemical energy storage device vibration-proof structure, a plurality of elastic sheets are introduced on the electricity core, the grooves are introduced on the outer shell, the electricity core is limited in a three-dimensional direction through the elastic sheets and the grooves, the elastic sheets can buffer the vibration amplitude, the stability of a device at vibration occasions is greatly improved, effectiveness loss caused by loose weld of the welding position between the electricity core and the current collector at the vibration occasions is effectively prevented, and conditions of electrode shelling, uncoiling and the like are effectively prevented.

The invention relates to the technical field of anti-sticking agents, and particularly provides an anti-sticking agent and a preparation method thereof. The first aspect of the invention provides theanti-sticking agent which at least comprises the following preparation raw materials in parts by weight: 30-40 parts of an organic acid, 4-8 parts of an organic amine, 10-20 parts of a dispersing agent, 20-30 parts of a penetrating agent and 15-30 parts of a solvent, wherein the penetrating agent is a long-carbon-chain polyoxy hydroxyl compound.

The present invention relates to a steel strip basal body hydrogen-nickel rechargeable button cell, which comprises a positive plate provided with a nickel electrode, a negative plate composed of complex multiphase electrochemical hydrogen storage alloy powders, a diaphragm arranged between the positive plate and the negative plate, a cell shell to hold an assembly of all components above with a gasket ring and a cell cover, a meshed gasket arranged between an internal bottom of the cell shell and the positive plate, a meshed gasket and a spring cushion positioned between the negative plate and the cell cover. The present invention eliminates a problem that powder easily falls off for negative hydrogen electrodes with steel strips as basal bodies, thus enhancing performance of heavy current charge and discharge, reducing cost and saving resource.

The invention discloses a wood pulverizer and relates to the field of wood production equipment. The wood pulverizer comprises a base and a pulverizing bin. The base is located at the bottom of the pulverizing bin. A feeding port is formed in the front end of the base. A discharging port is formed in the rear portion of the base. A pair of screw-in cylinders is arranged at the front end of the pulverizing bin. The diameter of the front section of the screw-in cylinders is larger than that of the rear end of the screw-in cylinders. A filtering groove is formed in the tail portions of the screw-in cylinders. A magnet is arranged on the side edge of the filtering groove. A pulverizing room is arranged in the middle of the pulverizing bin. Three sets of independent rotating shafts are arranged in the pulverizing room. Motors are arranged on the rotating shafts. Cutting blades are arranged on the rotating shafts. The wood pulverizer is reasonable in structure and high in practicability, feeding is convenient, first-level cutting of wood is completed, meanwhile, the wood is sent to the pulverizing bin, and multilevel pulverizing efficiency is high.

The preparation method of the battery pole piece comprises the following steps: carrying out mixing granulation operation on an active substance, a conductive agent, a binder and pure water to obtainelectrode particles; performing roll-in film laminating operation on the electrode particles and an electrode current collecting net to prepare an electrode laminated sheet; and carrying out baking operation on the electrode lamination sheet to obtain the battery pole piece. Thus, various components are mixed and granulated to obtain the electrode particles instead of conventional slurry, so thatthe non-uniformity caused by subsequent combination with the current collector can be avoided, and the porosity can be improved; and the electrode current collecting net and the electrode particles are adopted to carry out roll-in film laminating operation, so that the electrode particles can be clamped and embedded into the electrode current collecting net, the combination firmness is improved, the powder falling problem is avoided, the use of a binding agent can be reduced, and the discharge performance of the battery pole piece is also greatly improved. In addition, the invention also provides a battery comprising the battery pole piece.

The invention discloses a cap arranging machine, which is used for arranging high covers. The cap arranging machine comprises: a main machine frame, wherein the main machine frame is in an oblique ladder shape; a conveying belt mechanism, wherein the conveying belt mechanism is arranged on the main machine frame and is sequentially provided with a lower horizontal section, a cap arranging section,an upper horizontal section and a cap reversing section which are smoothly connected with each other from the bottom to the top of the main machine frame; the bottom of the main machine frame and thelower horizontal section of the conveying belt mechanism form an accommodating space, and the accommodating space is configured as a material pool; the material pool is used for storing the high capsto be arranged; the cap reversing section of the conveying belt mechanism is connected with next processing equipment; the high caps to be arranged are arranged by passing through the material pool,the lower horizontal section, the cap arranging section, the upper horizontal section and the cap reversing section of the conveying belt mechanism, and the high caps are conveyed to next processing equipment, a projecting disc or a belt conveyor or other equipment. The machine has the advantages of less energy consumption, less noise, high production efficiency and no damage to the bottle caps.

The invention discloses modified aerogel for filling an internal hollow cavity of hollow glass and relates to the technical field of hollow glass processing. The modified aerogel is prepared by the steps as follows: (1) gel preparation, (2) gel aging, (3) modification and (4) drying. According to the modified aerogel, conventional aerogel is modified with a self-made modifier, so that the modified aerogel is prepared, the outstanding thermal-insulation property can be developed after the hollow glass is filled with the modified aerogel, tests show that the U value is as low as 0.01 W/m<2>.K and the Sc value is as low as 0.06 when filling thickness of the modified aerogel is 30 mm; besides, with the adoption of the modified aerogel, the problem of settlement of the conventional aerogel after long-time use can be effectively solved, and the problems of powdering, damage and the like caused by production, transportation, frame attaching, hoisting, mounting and the like are solved.