11 results about "Nickel fluoride" patented technology

The invention relates to the technical field of energetic materials, in particular to nickel fluoride catalyzed ammonium perchlorate / aluminum composite fuel and a preparation method and application thereof. The ammonium perchlorate / aluminum composite fuel consists of the following components in percentage by mass: 50-70% of ammonium perchlorate, 0-10% of nickel fluoride and the balance of aluminum powder. Due to the addition of NiF2, high and low decomposition peaks of AP are combined into a violent exothermic peak, and the temperature of the high-temperature decomposition peak is reduced by about 30 DEG C, which means that the burning rate of the propellant can be greatly improved; the heat effect of the fluorination reaction (55.98 kJ. G <-1 >) of aluminum is far higher than the heat effect of the oxidation reaction (31.05 kJ. G <-1 >) of aluminum, so that the explosion heat is improved by about 10% while the reaction path is optimized. Besides, the anhydrous NiF2 used in the formula is stable in physical and chemical properties and does not absorb moisture and deliquesce, the problem of long-term storage of common fluorides such as CuF2 and FeF3 is solved, and the product reliability is extremely high.

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 utility model relates to a kind of composite function glass substrate, including following laminar structure: glass substrate, the front of glass substrate includes plating area and extension area, the back of glass substrate includes extension area, viewing area and non-viewing area;The front plating area of glass substrate is successively laminated with zinc oxide plating layer, nickel plating and fluorinated nickel plating layer from inside to outside;The back non-viewing area of glass substrate is successively laminated with photosensitive color-changing ink silk printing layer and polyurethane resin protective layer from inside to outside;Wherein, the extension area of the front of glass substrate is spaced apart with 3D printing plastic strip, and a layer of metal chromium layer is covered in the remaining area of plastic strip and extension area.The cover plate integrates excellent conductivity, high corrosion resistance, high hardness and unique visual effect, and has high application value.

The invention provides a positive electrode material, a preparation method thereof and a secondary battery. The positive electrode material comprises nickel fluoride, ferric fluoride and cobalt fluoride, the molar ratio of the nickel fluoride to the ferric fluoride to the cobalt fluoride is (0.3-0.5): (0.2-0.4): (0.2-0.4), and the positive electrode material is a eutectic material. The positive electrode material disclosed by the invention is beneficial to improving the cycle performance and stability of the secondary battery.

The application discloses a transition metal fluoride super ionic conductor dielectric film and a preparation method thereof. The super ionic conductor dielectric film is prepared by a thermal evaporation method from a transition metal fluoride super ionic conductor. The transition metal fluoride super ionic conductor is selected from scandium fluoride, yttrium fluoride, titanium fluoride, hafnium fluoride, manganese fluoride, ferrous fluoride and nickel fluoride. In the application, the source material of the transition metal fluoride is heated and evaporated into a gaseous state in an evaporation system by the thermal evaporation method. The gaseous fluoride is directly adhered to a substrate placed on the upper side of the source material and recrystallized, so that the thickness of the transition metal fluoride is controllable, the number of defects is controllable and the integration is very high. The super ionic transition metal fluoride dielectric material can show great potential in the design and manufacture of new functional devices.

The invention relates to the technical field of sodium ion batteries, in particular to a preparation method of a sodium-nickel fluoride battery positive electrode material, the positive electrode material, a battery positive electrode and a battery. The preparation method of the sodium-nickel fluoride battery positive electrode material comprises the following steps: in the presence of a precipitator, carrying out a co-precipitation reaction on nickel fluoride and a sodium source in a solvent to obtain a precipitate; and drying the precipitate, and sintering in a nitrogen atmosphere to obtain the sodium-nickel fluoride battery positive electrode material. According to the sodium-nickel fluoride battery, by optimizing the preparation process of the positive electrode material, the internal resistance is remarkably reduced, the rate capability is improved, and the sodium-nickel fluoride battery can stably work in high-power application.

Surface modified substrates and related methods are provided. A substrate having a modified surface comprises a first region and a second region. The first region is located above the second region. The first region comprises a nickel fluoride. The second region comprises a nickel alloy. A concentration of the nickel fluoride gradually decreases from the first region to the second region.

Provided is a method for manufacturing an anode where the anode effect is not likely to occur even when an electrolytic solution containing hydrogen fluoride and a metal fluoride is electrolyzed and used for electrolytically synthesizing fluorine gas. The method for manufacturing an anode for fluorine gas electrolytic synthesis includes an anodic treatment step. The anodic treatment step is a step of immersing not only an anode (21) that is an anode substrate including a carbon material but also a cathode (22) in a mixed liquid (10) for manufacturing an anode containing hydrogen fluoride, a metal fluoride, and potassium hexafluoronickelate (IV) and causing a current to flow between the anode (21) and the cathode (22) to perform an anodic treatment of the anode substrate such that nickel fluoride is attached to a surface of the anode substrate.

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 application discloses a kind of resource processing technology of nickel-containing etching waste liquid, comprising the following steps: S1, pretreatment: adding lye to nickel-containing etching waste liquid to adjust pH to 3.5~4.0, then heated stirring treatment, again, standing aging treatment, obtain containing nickel fluoride turbidity liquid;S2, centrifugal: the centrifugal treatment of containing nickel fluoride turbidity liquid;S3, main reaction: with hot water to clean nickel fluoride by-product, cleaning wastewater is added to the etching waste liquid after pretreatment, then add hydrofluoric acid to adjust the ratio of ammonium fluoride and hydrofluoric acid to 0.9~1.2:1, after reaction, obtain reaction liquid;S4, concentration;S6, centrifugal;S7, drying: ammonium bifluoride crystal is dried to obtain ammonium bifluoride product.The application controls precipitated nickel fluoride by adjusting process conditions, solves the influence of nickel-ammonium complexation on the direction of treating nickel-containing etching waste liquid by precipitation method by pH control, reduces auxiliary material addition and environmental pollution, realizes resource recycling, and reduces production cost.

The present disclosure provides surface modified substrates and related methods. A substrate having a modified surface includes a first region and a second region. The first region is positioned over the second region. The first region includes nickel fluoride. The second region includes a nickel alloy. The concentration of the nickel fluoride is gradually reduced from the first region to the second region.