9results about How to "Increase radius" patented technology

The invention provides a preparation method and application of a cathode material, and the preparation method of the cathode material comprises the following steps: weighing raw materials of a vanadium source, a phosphorus source, a potassium source and a rare earth element source, then adding water for dissolving, drying, calcining and ball-milling to obtain a rare earth element doped cathode material. The cathode material is high in energy density, stable in structure and good in conductivity, and the cycle performance of the battery can be improved. Particularly, a K < + > diffusion channel of the cathode material is obviously enlarged, and the cathode material has relatively high rate capability and has profound significance in application of the cathode material of the potassium storage secondary battery.

The application provides a positive electrode active material, a preparation method thereof, a positive electrode sheet and a secondary battery. The positive electrode active material comprises a compound with a chemical formula of formula 1: [Na x □ y ]Ni a Fe b Mn c A m Q n O β formula 1, wherein 0.6<=x<1.0, 0.06<=y<=0.4, 0<=a<=0.5, 0<=b<=0.5, 0.35<=c<=0.7, 0<=m<=0.1, 0<=n<=0.1, 1.96<=beta<=2.02, and a<c; □ is a Na vacancy, the Na vacancy comprises an intrinsic Na vacancy and a Na vacancy introduced by the A; the A comprises at least one of metal ions with full or empty d orbitals, and the Q comprises at least one of metal cations with +1 valence or +2 valence. In the application, the A enters the TM layer to replace part of the Mn 4+ , so that the TM n+ is in an electron-deficient state, and spontaneous oxidation reaction is inhibited.

The application discloses a battery module and a vehicle, and belongs to the technical field of batteries. The battery module comprises a single battery, an end plate, a control assembly and a first circuit board. The end plate is connected to one side of the single battery. The control assembly is arranged on the side of the end plate away from the single battery and is connected to the end plate. The first circuit board is connected to the single battery and the control assembly. The single battery, the end plate and the control assembly are arranged on the same side of the first circuit board. According to the application, the control assembly is connected to the end plate, so that the control assembly and the end plate form an integral whole, the connection between the control assembly and the first circuit board can be completed before the battery module is put into a box, and the connection difficulty is reduced.

The invention relates to the technical field of ceramic glazes, and discloses a high-strength wear-resistant ceramic glaze and a preparation method thereof, 3-chloro-2-chloromethyl propylene and diethyl iminodiacetate are subjected to nucleophilic substitution, the obtained product is hydrolyzed under an acidic condition, and 2-(N, N '-dimethylene carboxyl) aminomethyl-allyl diacetic acid is obtained. And carrying out addition reaction on the poly (ethylene glycol) methacrylate and sodium vinyl sulfonate to obtain the dispersing agent. The preparation method comprises the following steps: adding a dispersing agent into a preparation process of a zirconium silicate precursor, drying to obtain dispersing agent modified zirconium silicate superfine powder, mixing with potassium feldspar, albite, high-purity quartz, calcined kaolin, aluminum oxide, calcium carbonate and zinc oxide, carrying out ball milling, and sieving to remove iron, so as to prepare the high-strength wear-resistant ceramic glaze, so that the wear resistance, high strength and corrosion resistance of the ceramic glaze are improved, and the service life of the ceramic glaze is prolonged. Therefore, the wear resistance, high strength and corrosion resistance of the ceramic product are improved.

A cooling tower water and wind double-drive turbine type rotating water spraying nozzle, comprising a water guide rotor, a water guide stator, a wind turbine and a water turbine; the water guide rotor is connected with the helical guide vane by a rotating shaft, the bottom of the water guide rotor is connected with the water turbine and the wind turbine; the water guide stator comprises a water guide sleeve which is vertically arranged, the top of the outer part of the water guide sleeve is provided with an outer thread connected with a nozzle seat and a wrench position, a coaxial thrust sliding bearing is arranged in the upper part of the cylinder, the water guide rotor is coaxially arranged in the cylinder of the water guide stator, an axial limiting assembly is arranged above the thrust sliding bearing and is connected with the upper shaft neck connected with the rotating shaft which extends out of the thrust sliding bearing to suspend and support the water guide rotor; the helical guide vane is rotationally matched with the inner surface of the cylinder, a plurality of helical guide vanes divide the inner cavity of the cylinder into a plurality of helical flow channels which are connected with the U-shaped flow channel of the water turbine at the bottom to spray water outward. The present application can distribute the spraying water more uniformly, avoid the spraying blind area, reduce material consumption and be beneficial to environmental protection.

The application discloses a construction method for hammering a hole and expanding a head, and the construction method can not only avoid the influence of pipelines and box culverts on the ordinary foundation reinforcement, but also can make the construction speed faster, reduce the construction cost and shorten the construction period due to the easy ramming construction of the rammed expanded pile in the bearing layer and the short overall pile length.

The application provides a copper strip trimming and shaping waste recycling device, and belongs to the technical field of metal material recycling. The device solves the problems of long recycling process, high cost, high labor intensity and low production efficiency in the prior art. The copper strip trimming and shaping waste recycling device comprises a rack, a compaction forming assembly and a crushing assembly fixed above the rack, and a material guiding assembly fixed above the crushing assembly. The material guiding assembly comprises a slave rotating shaft and a first rotating motor fixed at one end of a discharging hopper. The first rotating motor output shaft is fixed with a main rotating shaft. The main rotating shaft and the slave rotating shaft are both fixed with belt pulleys at the other end. Transmission belts are fixed between the two belt pulleys. The main rotating shaft outer wall is fixed with a guide roller. The slave rotating shaft outer wall is fixed with a rubber roller. The device has the advantages of on-line continuous waste recycling and direct utilization in the copper strip trimming and shaping process.

The application discloses a drilling sample manufacturing mold, which is characterized by rotating a pivot part to drive an arc-shaped inner plate to move along a radial direction by an inner plate driving mechanism, thereby adjusting the distance between an inner tube and an outer tube, that is, adjusting the radius between the axis of a center tube and the inner tube, so as to adjust the aperture of the drilling. The drilling sample manufacturing mold disclosed by the application can manufacture drilling samples with different apertures by using the same mold, guarantees the diversity of the manufactured samples, saves materials, and improves the test efficiency.