5results about How to "Low temperature requirement" patented technology

The invention provides a waste lithium battery positive electrode material efficient leaching method based on electron beam rapid oxidation and application of the waste lithium battery positive electrode material efficient leaching method, and relates to the field of battery recycling. The leaching method comprises the following steps: S1, mixing black powder with water and carboxylate to prepare first slurry; and S2, carrying out electron beam irradiation treatment on the first slurry, introducing carbon dioxide, and carrying out solid-liquid separation to obtain a first lithium bicarbonate solution. Iron ions in lithium iron phosphate are rapidly oxidized by using an electron beam irradiation technology, and the use of hydrogen peroxide is reduced. Meanwhile, the effect of promoting lithium ion leaching can be achieved at normal temperature through electron beam irradiation, the requirement for the temperature in wet leaching is lowered, and therefore steam consumption is reduced.

The invention discloses a preparation method of a nano flaky diamond film, and relates to the technical field of diamond preparation. Compared with the original temperature of 1050 DEG C, the method provided by the invention has the advantages that the nano flaky diamond doped by the method has lower temperature requirement (about 920 DEG C) and lower temperature resistance requirement on equipment, and the selection range of a substrate material is widened; according to the invention, the formation of a (111) plane is inhibited by doping large atomic elements, so that the generation of the nanosheet-shaped diamond is promoted; compared with the original diamond, the obtained nano flaky diamond has lower surface roughness, higher carrier mobility and excellent doping controllability, and diamond films with different doping amounts can be obtained according to specific different requirements, so that the nano flaky diamond has a wide application prospect.

The present application relates to a kind of for the preparation of fuel cell catalyst layer step drying pipeline and its use method, comprising: conveying unit, low-pressure heat conduction drying unit, vacuum microwave drying unit and vacuum unit;The low-pressure heat conduction drying unit includes bottom heating device, low-pressure bin, first manifold branch, and the first manifold branch is connected with vacuum unit;The vacuum microwave drying unit includes vacuum bin, microwave heating device and second manifold branch, and the second manifold branch is connected with vacuum unit;Catalyst ink is under the action of conveying unit, respectively, in low-pressure bin in low-pressure state and in vacuum bin in vacuum state, bottom heating device carries out low-pressure heating, and microwave heating device carries out vacuum microwave drying.Compared with prior art, the present application improves the production efficiency of catalyst layer, reduces product defect, improves the degree of automation of catalyst layer, and realizes process flow programmable and wide range of application.

The invention relates to a hot air supply system and method for preparing white carbon black through rice hull gasification. The hot air supply system comprises a rice hull gasification device, a first-stage gas-gas heat exchanger, a filter bag dust collector, a second-stage gas-gas heat exchanger, a waste heat boiler, an air mixing device and an SCR denitration device. The rice hull gasification device is used for outputting dust-containing fuel gas after rice hull gasification, and the dust-containing fuel gas is subjected to primary cooling through a primary gas-gas heat exchanger and subjected to dust removal through a filter bag dust remover to obtain clean fuel gas; the clean fuel gas is secondarily cooled by the secondary gas-gas heat exchanger and is combusted in the waste heat boiler to form high-temperature flue gas, and the high-temperature flue gas is cooled by the air mixing device and is changed into clean flue gas after passing through the SCR denitration device; clean flue gas sequentially passes through the second-stage gas-gas heat exchanger and the first-stage gas-gas heat exchanger to be subjected to heat exchange and temperature rise to form target clean flue gas, the target clean flue gas is used for preparing white carbon black, after waste heat is utilized, the target clean flue gas is directly discharged, and a chimney and an induced draft fan do not need to be used. The technical problems that in the prior art, a device is complex in process, high in energy consumption and poor in operation stability are solved.

This application belongs to the field of light-emitting device technology. This application discloses a light-emitting device encapsulation material, comprising a substrate layer, an adhesive layer, and a matrix layer; the adhesive layer is disposed on one side of the substrate layer and includes at least one groove; the matrix layer is disposed between the substrate layer and the adhesive layer and includes at least one reflective block; the reflective block is embedded in the groove; along a direction perpendicular to the substrate layer, the groove of the adhesive layer has a first projection on the substrate layer, and the reflective block of the matrix layer has a second projection on the substrate layer; the second projection is within the first projection. This application also discloses a display module, comprising a substrate, a light-emitting device, and an encapsulation material; the light-emitting device is disposed on the substrate; the encapsulation material is disposed on the light-emitting device. The light-emitting device encapsulation material in this application can solve the problem of large gaps between layers in the light-emitting device encapsulation material, the light-emitting device encapsulation material is less prone to bubble formation, has high peel strength, and ensures the reliability of the component.