4results about How to "Good uniformity" patented technology

The application discloses a silicon-carbon negative electrode material, a preparation method, application and a battery. The preparation method of the silicon-carbon negative electrode material comprises the following steps: performing methane gas phase carbon coating on a silicon source to obtain the silicon-carbon negative electrode material; wherein, when the methane gas phase carbon coating is performed, the vacuum degree of the system is 300-5000 Pa; and the mass-volume ratio of the silicon source and methane is 1 kg:(10-150) L. The uniformity and coverage of the coating layer on the surface of the silicon source of the silicon-carbon negative electrode material are better, the carbon deposition layer has a special surface structure, the volume change of the negative electrode material in the charging and discharging process can be buffered, and the negative electrode material can realize better electrochemical performance.

The invention discloses a device and a method for regulating and controlling the spraying angle of a tobacco primary processing, leaf moistening, perfuming and charging atomizing nozzle, and belongs to the technical field of automatic control of tobacco primary processing equipment. The invention aims to solve the problems of poor accuracy, low consistency and serious raw material waste of manual nozzle angle adjustment and insufficient degree of freedom of an existing automatic adjustment device. The device comprises a regulation and control motor unit which is externally arranged on the outer side of a cylinder wall and comprises a first motor and a second motor; the angle adjustment execution unit is arranged in the cylinder and comprises a worm and gear assembly and a pitching adjustment shaft; the power transmission unit penetrates through the cylinder wall and comprises a first transmission shaft and a second transmission shaft. The first motor drives the worm and gear assembly to drive the nozzle to horizontally rotate, and the second motor drives the pitching adjusting shaft to drive the nozzle to vertically pitch. The invention further discloses a corresponding regulation and control method. The two-degree-of-freedom reliable automatic adjustment of the nozzle is realized, the adhesion uniformity of a medium is improved, and the waste of raw materials and auxiliary materials is reduced.

The application discloses a batch preparation device and a synthesis process of a Pt-based catalyst rich in N doping, wherein a partition plate is introduced into a preparation bin, the preparation bin can be divided into two spaces with variable volumes through the partition plate, so that the preparation and the discharge are synchronously performed, and the two spaces positively affect each other, the space utilization efficiency of the preparation bin is fully improved, the preparation efficiency is improved, in addition, the first material uniformizing component and the second material uniformizing component can well uniformly distribute materials, and the preparation effect is ensured.

This invention relates to a rapid drying method, apparatus, and sodium-ion battery for Prussian blue analogue sodium-ion battery electrodes, belonging to the field of sodium-ion battery manufacturing technology. The rapid drying method includes the following steps: S1: Preparing the wet electrode sheet and feeding it into a drying chamber for drying; S2: Transferring it to an internally heated dehydration section for gradient temperature dehydration; S3: Transferring it to an instantaneous high-temperature dehydration section for instantaneous high-temperature dehydration; S4: Transferring it to a heat-preserving dehydration section for further deep dehydration; S5: Cooling the electrode sheet after step S4 to obtain a dried electrode sheet. This drying method has the advantages of being rapid and low-cost, and can minimize structural damage to the Prussian blue analogue material.