6results about How to "Increase the interface contact area" patented technology

The invention discloses a micro-texture porous multilayer structure composite current collector and a preparation method thereof. The composite current collector comprises a porous polymer film located in the middle, chemical plating metal layers located on the two sides of the porous polymer film, micro-texture metal copper layers located on the outer sides of the two chemical plating metal layers, and corrosion-resistant lithium-loving layers located on the outer sides of the two micro-texture metal copper layers. The surface area of the current collector is increased by arranging the porous polymer film and the micro-texture metal copper layer, so that the charging and discharging current is increased, and the effect of inhibiting the abnormal growth of lithium dendrites is achieved; metallization of the outer surface of the porous polymer film is realized by arranging the chemical plating metal layer, so that low-cost and high-yield metallization is realized; by arranging the corrosion-resistant lithium-loving layer, the corrosion resistance and the lithium-loving property of the current collector are improved, the corrosion-resistant requirement of a sulfide solid-state battery as a representative lithium ion battery is met, and the effects of promoting nucleation of lithium dendrites and inhibiting abnormal growth of the lithium dendrites are achieved.

The application discloses a preparation method of a P / N / Si multi-element reactive halogen-free flame retardant, specifically comprising the following steps: preparing DOPO grafted 3-chloropropyl trimethoxysilane, which is denoted as PPTMS; preparing a cage-like POSS containing DOPO, which is denoted as PSC; mixing the PSC with toluene to obtain a PSC solution; uniformly mixing maleimide MI with toluene, dropwise adding the PSC solution into the maleimide MI solution to perform a condensation reflux reaction, and performing vacuum rotary evaporation to obtain the P / N / Si multi-element reactive halogen-free flame retardant. The phosphorus-containing monomer, the nitrogen-containing monomer and the silicon-containing monomer in the flame retardant are covalently bonded, and the multi-elements in the molecule exist in the form of a collection acid source, a carbon source, a gas source and a ceramicization, wherein the phosphorus-containing monomer is dehydrated into carbon, the nitrogen-containing monomer releases non-combustible gas to dilute the gas phase, and the silicon-containing monomer forms a dense ceramic barrier layer to improve the triple synergy of carbon residue strength and anti-dripping property, thereby greatly improving the flame retardant efficiency.

The present invention relates to the technical field of water treatment, and specifically to a method for photocatalytic treatment of industrial oily wastewater. After a double core-shell structure photocatalyst is added to the industrial oily wastewater, light is continuously provided for photocatalytic treatment. The double core-shell structure photocatalyst has a bimetallic sulfide as a core, titanium dioxide as an intermediate shell layer, and a perovskite-type oxide as an outer shell layer. The photocatalytic treatment method provided by the present invention has an excellent treatment effect on industrial oily wastewater and can be widely promoted and applied.

The invention relates to the technical field of water treatment, and specifically to a combined treatment method for industrial sewage. An ozone catalyst is first added to the industrial sewage, and ozone is continuously provided for ozone catalytic oxidation, and clear liquid is collected. A photocatalyst is then added to the clear liquid, and light is continuously provided for photocatalytic oxidation treatment. The ozone catalyst is a spinel ferrite. The photocatalyst has a multiple core-shell structure, and the photocatalyst uses Fe3O4 microspheres as the core, and from the inside to the outside, there are SiO2 layers, Ag layers and perovskite oxides. The invention achieves a removal efficiency of 99.9% for oil pollution in petroleum industrial sewage in a relatively short time through ozone catalytic oxidation combined with photocatalytic oxidation, and the catalysts are all magnetic and easy to remove, and the reaction conditions are mild and there is no secondary pollution.

The application provides a preparation method of a gel polymer electrolyte for energy storage frequency modulation and an integrated battery, and belongs to the technical field of lithium ion secondary batteries and electrochemical energy materials, and can at least partially solve the problems of the existing gel polymer electrolyte, such as the contradiction between mechanical properties and ionic conductivity, poor interface compatibility, weak lithium dendrite inhibition ability, and insufficient thermal stability and flame retardancy. The gel polymer electrolyte prepared by constructing a dynamic covalent cross-linked polyimide-polyionic liquid interpenetrating network and using monatomic iron-anchored phosphorus-doped carbon nitride nanosheets as a multifunctional filler has excellent mechanical properties and high ionic conductivity, and the flame retardancy is greatly improved, and the growth of lithium dendrites can be effectively inhibited. Meanwhile, the integrated battery is prepared by using an ultraviolet light-initiated in-situ polymerization process, which is suitable for the roll-to-roll large-scale production line of existing lithium batteries, and the interface bonding force of the battery is strengthened, the cycle stability is improved, and the high-frequency response requirement of energy storage frequency modulation is met.

This invention discloses a double-through-structure bimetallic composite material, its preparation method, and its application. The composite material comprises a stainless steel porous framework and an aluminum-based composite material filler; the aluminum-based composite material is uniformly filled within the stainless steel porous framework structure; the aluminum-based composite material comprises AlSi. X Mg (0 ≤ x ≤ 10) and B4C. The composite material of this invention consists of spherical AlSi... X This composite material is prepared by mixing Mg (0 ≤ x ≤ 10) alloy powder and B4C powder in a specific ratio and then sintering. It exhibits excellent energy absorption properties, high strength, and impact resistance, making it suitable for applications in aerospace, automotive, and protective equipment. The production method is simple, with a short production cycle and high efficiency. Furthermore, this material significantly improves the deformation resistance and impact resistance of traditional stainless steel and aluminum alloys under impact conditions, thereby broadening its application range in industrial fields.