18 results about "Copper fluoride" patented technology

The invention belongs to the technical field of thermal batteries, and particularly relates to a preparation method and application of a copper fluoride-based heterojunction thermal battery positive electrode material. According to the invention, fluorides with different phases and different band gaps are utilized to form a heterogeneous interface microcosmically, an electron circulation directional electric field is formed at the inhibition interface, migration of electrons and ions is accelerated, and the ion characteristics of the fluorides are improved. According to the thermal battery positive electrode material provided by the invention, the voltage of a unit battery can be remarkably increased, charge and ion transfer of the positive electrode material can be improved, so that the material can bear large pulse current and has relatively high specific capacity, and the material has good adaptability to existing electrolytes in the market at present and has a relatively high voltage platform and relatively high specific capacity. According to the invention, the conductivity of the reaction product is further enhanced by using the copper elementary substance generated by the preferential reaction of copper fluoride, and an ion transmission channel is constructed by using the copper elementary substance generated by the preferential reaction of copper fluoride as a support frame, so that the copper fluoride-based composite material has high-potential and high-power discharge capability.

The application relates to the development and technical field of electrocatalysts, and discloses a preparation method and application of a proton sponge modified fluorine atom doped metal copper electrode material, which comprises the following steps: adding a dispersion solution of a proton sponge into a dispersion solution of a hydroxyl copper fluoride precursor to obtain a mixed solution; uniformly spraying the mixed solution on a polytetrafluoroethylene film substrate loaded with copper nanoparticles to obtain a proton sponge modified hydroxyl copper fluoride precursor electrode material; and then electrochemically reducing the proton sponge modified hydroxyl copper fluoride precursor electrode material to obtain the proton sponge modified fluorine atom doped metal copper electrode material. The application further discloses the proton sponge modified fluorine atom doped metal copper electrode material obtained by the above preparation method and application of the proton sponge modified fluorine atom doped metal copper electrode material to an electro-reduction carbon dioxide reaction as a working electrode. The electrode material provided by the application exhibits excellent electro-reduction CO2 performance in an acidic environment, and realizes the preparation of high-value C 2+ products with high selectivity under an industrial-grade current density.

The invention provides a reflective integrated electrochromic device. The reflective integrated electrochromic device sequentially comprises a first substrate layer, a working electrode layer, an integrated electrochromic layer, a counter electrode layer and a second substrate layer, the integrated electrochromic layer comprises a metal source compound; the metal source compound is selected from silver chloride, silver acetate, silver nitrate, silver perchlorate, silver sulfate, silver cyanide, silver sulfide, silver hexafluorophosphate, silver tetrafluoroborate, silver tetrachloroaluminate, silver trifluoromethanesulfonate, silver bis (trifluoromethane sulfonimide), copper fluoride, copper chloride, copper cyanide, copper sulfate, copper acetate, copper aluminate, cuprous fluoride, cuprous chloride, cuprous cyanide, gold chloride and gold cyanide; the catalyst is one or more of gold sulfide, gold chloride, gold (II) sulfide, nickel chloride, nickel sulfate, cobalt chloride and platinum chloride. The device has a relatively large transmittance / reflectivity dynamic change range, can perform light and heat management at the same time, and can keep a stable coloring or fading state for one month or even several months under a no-load condition.

This invention relates to a high-interfacial-wetting cathode material and its preparation method in the field of thermal battery technology. The material comprises a cathode active material and a halide cathode additive, wherein the halide cathode additive accounts for 5% to 20% by mass. The cathode active material is a sulfide cathode, including one or more of FeS2, CoS2, and NiS2. The halide cathode additive is a metal halide, including one or more of nickel chloride, cobalt chloride, nickel fluoride, and copper fluoride. This solution significantly reduces the interfacial impedance between the cathode and the electrolyte, improving power performance and discharge capacity.

The application discloses a preparation method of a hydroxyl copper fluoride / cuprous oxide composite catalyst, which comprises the following steps: dispersing hydroxyl copper fluoride as a copper source in deionized water, and using glucose, hydrazine hydrate or sodium borohydride as a reducing agent to reduce a small amount of cuprous oxide on the surface of the hydroxyl copper fluoride in situ to obtain a target product. The preparation process is simple, and the operability is good. Through the synergistic effect of photocatalysis and a Fenton-like system, the hydroxyl copper fluoride / cuprous oxide composite catalyst has good catalytic performance and cycle stability under visible light irradiation, and can be used for degrading organic pollutants such as antibiotics.

A polyimide resin composition containing a polyimide resin (A) and an antioxidant (B), wherein the polyimide resin (A) contains a repeating structural unit represented by the following formula (1) and a repeating structural unit represented by the following formula (2), a content ratio of the repeating structural unit of the formula (1) with respect to the total of the repeating structural unit of the formula (1) and the repeating structural unit of the formula (2) is 20 to 70 mol %, and the antioxidant (B) contains one or more copper compounds (B1) selected from the group consisting of copper fluoride, copper bromide, copper iodide, and copper carboxylates, or a cerium-containing compound (B2);wherein R1 represents a divalent group having from 6 to 22 carbon atoms containing at least one alicyclic hydrocarbon structure; R2 represents a divalent chain aliphatic group having from 5 to 16 carbon atoms; and X1 and X2 each independently represent a tetravalent group having from 6 to 22 carbon atoms containing at least one aromatic group.

The present invention discloses a high-energy-density CuF2 positive electrode material for lithium-ion batteries and a preparation method thereof. The method comprises the following steps: dissolving a copper salt in anhydrous ethanol to prepare a copper salt solution; dissolving ammonium fluoride in a mixed solvent of methanol and water to prepare an ammonium fluoride solution; dropping the ammonium fluoride solution into the copper salt solution to prepare a precursor by co-precipitation, which is then centrifuged, cleaned, dried, and then heat-treated in an inert atmosphere to obtain a high-energy-density CuF2 positive electrode material for lithium-ion batteries. The present invention effectively regulates the purity of the final product, copper fluoride, by introducing methanol, thereby improving the electrochemical performance. Compared with the existing CuF2 synthesis process, the process method proposed in the present invention has a short process flow, simple operation, avoids the use of toxic fluorine sources such as hydrogen fluoride, and the synthesized positive electrode material has the advantages of high purity, good dispersion, small particle size, high electrochemical reaction activity, and high energy density.

This invention discloses an aqueous copper-ion battery electrolyte, its preparation method, and the copper-ion battery itself. The electrolyte comprises a copper salt, a solvent, and a copper halide salt additive. The copper salt is copper sulfate, and the solvent is deionized water. The concentration of the copper salt in the electrolyte is 0.5–1.5 mol / L. The copper halide salt additive is selected from one or more of copper fluoride, copper chloride, and copper bromide, and the total concentration of the copper halide salt additive in the electrolyte is 0.005–0.2 mol / L. When the electrolyte of this invention is used in an aqueous copper-ion battery, the halide ions in the copper halide salt additive can preferentially adsorb onto the surface of the metallic copper anode, inducing uniform copper deposition and inhibiting the formation of by-products. This significantly improves the coulombic efficiency and cycle stability of the aqueous copper-ion battery. Furthermore, the electrolyte preparation process is simple, low-cost, and environmentally friendly, making it suitable for large-scale energy storage scenarios.

The invention relates to an electrochemical immunosensor constructed based on a composite material prepared from gold nanoparticles, a zeolite imidazole framework and copper fluoride and application of the electrochemical immunosensor in detection of PEDV (Porcine Epidemic Diarrhea Virus). The construction method of the electrochemical immunosensor comprises the following steps: preparing a ZIF-8 (at) CuF2 material, preparing an AuNPs (at) ZIF-8 (at) CuF2 material, preparing an Au (at) GO material and preparing an Nb2 (at) AuNPs (at) ZIF-8 (at) CuF2 material. The preparation method disclosed by the invention has the outstanding advantages that the AuNPs (at) ZIF-8 (at) CuF2 nano composite material is successfully prepared and is proved through a transmission electron microscope image, element distribution analysis, Zeta potential, an XRD powder X-ray diffraction pattern and an XPS photoelectron spectroscopy; the method is applied to sensor construction for the first time; the sandwich type electrochemical immunosensor for measuring the virus concentration by using over-pulse voltammetry (DPV) is constructed by utilizing the characteristic that the nano antibody can specifically recognize S protein of the porcine epidemic diarrhea virus.

The invention discloses functional ceramic coating slurry and a diaphragm preparation method in the technical field of battery diaphragms. The functional ceramic coating slurry is prepared from the following components in parts by weight: copper fluoride powder, ultrapure water, polyacrylate, aluminum oxide ceramic powder, a nano cellulose aqueous solution, an adhesive and a wetting agent. According to the invention, the copper fluoride powder is introduced into the coating slurry, so that the interface stability and heat resistance of the diaphragm and the pole piece are improved, and meanwhile, the growth of lithium dendrites of the negative electrode of the lithium battery can be inhibited, so that the stability of the lithium battery is improved.

A copper fluoride / polymer double-coated chromium oxide positive electrode material and its preparation method and application belong to the field of lithium-ion battery technology. The specific scheme is as follows: the positive electrode material includes a core, an inner coating layer coated on the core, and an outer coating layer coated on the inner coating layer; the core is chromium oxide, the inner coating layer is a copper fluoride coating layer, and the outer coating layer is a mixed coating layer of polymer and highly conductive material. The present invention uses a chemical precipitation method to introduce a copper fluoride coating layer with a high voltage window and high discharge capacity on the surface of the chromium oxide, and constructs a mixed coating layer of conductive material and polymer on the outer surface of the material. The double coating layer isolates the self-discharge phenomenon between the chromium oxide and the electrolyte, improves the discharge platform of the material, and the polymer layer constructed by in-situ polymerization enables the material to have excellent ion and electron transport properties, effectively improving the discharge specific capacity, rate performance and storage performance of the chromium oxide.

The present invention discloses an alkaline earth metal ion-doped copper fluoride, and its preparation method and application. The preparation method of the alkaline earth metal ion-doped copper fluoride comprises the following steps: preparing a copper salt solution and an alkaline oxide solution respectively; mixing the copper salt solution and the alkaline oxide solution, stirring and reacting at 30-70°C, and obtaining a precursor mixture after the reaction is completed; filtering and washing the precursor mixture and drying it to obtain a dry precursor sample, and then uniformly mixing it with a fluorine source and heat-treating it at 240-320°C under a protective atmosphere. After the heat treatment is completed, the alkaline earth metal ion-doped copper fluoride is obtained. The present invention reduces the use of water in the preparation process, thereby reducing wastewater discharge; at the same time, the present invention improves the preparation efficiency by simplifying the process, and the porous copper fluoride obtained is doped with alkaline earth metal ions, and the band structure is regulated and the electrochemical activity is improved.

The application discloses an electrode material and a preparation method and application thereof in a lithium ion battery electrode material, and belongs to the field of lithium ion batteries. The electrode material is copper melloate doped with hydroxyl copper fluoride; the preparation method of the material comprises the following steps: (1) preparing hydroxyl copper fluoride powder; (2) preparing copper melloate doped with hydroxyl copper fluoride. The material provided by the application can be used in a lithium ion battery as a negative electrode material. Due to the doping of metal fluoride, a more stable SEI film can be formed on the electrode surface, so that the material exhibits good cycle stability.

The invention discloses a damping and anti-collision power distribution cabinet, and belongs to the technical field of manufacturing of electronic components of power equipment. The power distribution cabinet comprises a case, a safety door, a cage type reinforcing assembly, energy absorption assemblies, anti-collision suites and shock pads, the structural rigidity in the case is enhanced through an aluminum profile cage type frame, the energy absorption assemblies containing ACF metamaterials are arranged on protective plates on the two sides and a bottom plate, and the three-stage anti-collision suites of frame type reinforcing, cross cable-stayed and crumple energy absorption are integrated on the inner side of the safety door. The SD type rubber shock pad is arranged in the machine base, when the machine base is impacted, the anti-collision suite absorbs impact energy through force dispersion and plastic deformation, and after vibration is primarily filtered through the rubber shock pad, residual energy is converted into heat energy through an ACF material and is dissipated through a special heat dissipation channel; the power distribution cabinet solves the problems that a traditional power distribution cabinet is weak in impact resistance and poor in damping effect, has the advantages of being high in structural strength, high in damping efficiency, excellent in anti-collision performance and convenient to maintain, and is suitable for various places, especially road facility power supply places.

A reflective integrated electrochromic device, sequentially comprising: a first substrate layer (11), a working electrode layer (12), an integrated electrochromic layer (13), a counter electrode layer (14), and a second substrate layer (15), wherein the integrated electrochromic layer (13) comprises a metal source compound, the metal source compound being selected from one or more of silver chloride, silver acetate, silver nitrate, silver perchlorate, silver sulfate, silver cyanide, silver sulfide, silver hexafluorophosphate, silver tetrafluoroborate, silver tetrachloroaluminate, silver triflate, silver bistrifluoromethanesulfonimide, copper fluoride, copper chloride, copper cyanide, copper sulfate, copper acetate, copper aluminate, cuprous fluoride, cuprous chloride, cuprous cyanide, gold chloride, gold cyanide, gold sulfide, gold monochloride, aurous sulfide, nickel chloride, nickel sulfate, cobalt chloride, and platinum chloride. The dynamic change range of the transmittance / reflectance of the device is relatively large, and the device can achieve simultaneous management of light and heat, and can maintain a stable colored or faded state for one month, or even several months, under no-load conditions.

The invention relates to the technical field of solid-state batteries, and discloses an efficient solid-state battery interface stability improving method which comprises the following steps: firstly, forming a composite precursor layer consisting of copper fluoride and lithium fluoride on the surface of a sulfide solid-state electrolyte sheet body through a codeposition method; and then assembling the electrolyte sheet body with the layer and a lithium metal negative electrode. In the assembling process, the composite precursor layer and lithium metal are subjected to an in-situ chemical reaction, and a stable composite interface layer formed by uniformly dispersing nano metal copper particles in a lithium-rich fluoride matrix is generated. According to the invention, through the constructed interface layer, nano-copper particles are used as lithium-philic sites to induce uniform nucleation of lithium ions, and meanwhile, a lithium fluoride matrix is used as an electronic insulating layer to inhibit interface side reaction and lithium dendrite growth, and through the synergistic effect of the nano-copper particles and the lithium fluoride matrix, the problem of instability of an interface between a sulfide electrolyte and a lithium negative electrode is effectively solved; therefore, the critical current density, the cycle life and the rate capability of the solid-state battery are remarkably improved.

A high-voltage high-entropy metal fluoride positive electrode, a preparation method and applications thereof belong to the technical field of lithium ion batteries. Copper fluoride, iron fluoride, cobalt fluoride, nickel fluoride and manganese fluoride are mixed, sodium alginate is added, and high-entropy metal fluoride material uniformly fused with sodium alginate is obtained under argon protection ball milling; then, ketjen black is added under argon protection, and ball milling is carried out under the same conditions; the powder obtained by ball milling is mixed with a Mxene aqueous dispersion, coated on a titanium foil after ball milling, and dried to obtain a high-entropy metal fluoride positive electrode combined with a conductive binder. The application of high-entropy materials and high-conductivity cross-linked binders to copper fluoride positive electrodes utilizes the improvement of the two on the conductive capacity and the protection effect on copper fluoride, as well as the cross-linking effect among CuF2, SA and MXene, improves the conductive performance and cycle stability of the positive electrode, and enables the average discharge voltage of the full battery to break through 2.5V, so that it can be used for assembling full batteries.

The invention provides a method for mass production of a porous copper fluoride lithium ion battery positive electrode material, and belongs to the technical field of lithium ion batteries. According to the method, the copper fluoride material with the hole and gap structure is formed through the process that the mixture reacts to generate gas under the condition of high-temperature inert gas. The gap structure has the advantages that the lithium ion embedding capability of the material is greatly improved, a homogeneous crystallization core is provided for the electrode material during discharging, and the dynamic hindrance formed by a new phase is reduced; and the discharge reaction efficiency is improved.