34 results about "Chloride electrolytes" patented technology

A metal halogen electrochemical energy cell system that generates an electrical potential. One embodiment of the system includes at least one cell including at least one positive electrode and at least one negative electrode, at least one electrolyte, a mixing venturi that mixes the electrolyte with a halogen reactant, and a circulation pump that conveys the electrolyte mixed with the halogen reactant through the positive electrode and across the metal electrode. Preferably, the positive electrode comprises porous carbonaceous material, the negative electrode comprises zinc, the metal comprises zinc, the halogen comprises chlorine, the electrolyte comprises an aqueous zinc-chloride electrolyte, and the halogen reactant comprises a chlorine reactant. Also, variations of the system and a method of operation for the systems.

A rhenium lined niobium alloy tube for use as a clad tube for nuclear fuel in a nuclear reactor. The tube is produced by an electro deposit process. A graphite mandrel is placed in the electro deposit chamber as the cathode material. Refined rhenium stock is used as the anode material. The chamber is filled with the chloride electrolyte. The chamber is closed and the electrolyte bath is heated. Current and voltage applied across the anode and cathode cause the rhenium to be deposited on the mandrel. Refined niobium alloy is then used as the anode material and applied over the rhenium on the mandrel to a desired thickness. The part is removed from the chamber and ground to the desired outside diameter. The graphite mandrel is removed from the tube.

An alloyed hot-dip galvanized steel sheet is obtained by forming a hot-dip galvanized layer on the surface of the steel sheet and then alloying the steel sheet. The steel sheet exhibits a potential of -850 mV or less when it is immersed in a zinc sulfate-sodium chloride electrolyte. Alternatively, when it is electrolyzed according to constant potential electrolysis process in a zinc sulfate-sodium chloride electrolyte at a potential in a range from -940 mV to -920 mV, the quantity of electricity consumed is less than or equal to 0.5 C / cm<2>. The steel sheet exhibits excellent processability and particularly excellent sliding property.

The invention relates to a preparation method of a chloride composite electrolyte used for molten salt electrolysis. The preparation method comprises following steps: a refractory metal chloride is subjected to heating sublimation so as to obtain a gas material; the gas material is reacted with a granular solid alkali metal and / or a alkaline earth chloride so as to obtain a A2MCl6 type compound and / or a BMC16 type compound, wherein A is used for representing the alkali metal, B is used for representing the alkaline earth metal, and M is used for representing the refractory metal; the A2MCl6 type compound and / or the BMC16 type compound is reacted with the solid alkali metal and / or the alkaline earth chloride particles further so as to obtain a composite electrolyte with a low eutectic point, wherein reaction temperature is controlled, and the obtained composite electrolyte is in liquid states; and the composite electrolyte is separated from the solid alkali metal or the alkaline earth chloride particles, and is dropwise collected under the effect of gravity. Operation of the preparation method is simple and safe; chemical composition of the obtained product is stable; automatic separation of the product from the raw materials can be realized; continuous operation can be realized; and problems of volatilization of chloride electrolytes used for chloride system molten salt electrolysis or refractory metal refining, and raw material continuous adding are solved.

The invention discloses a zinc-titanyl composite thin film material with an electrochromic effect, and application and a manufacturing method thereof. The zinc-titanyl composite thin film material haselectrochromism phenomenon in a potassium chloride electrolyte. A sol-gel method is used, molar ratio of titanium dioxide to zinc oxide is controlled to be 1:1 to prepare a sol precursor, and a F127three-stage telcomer is added in the precursor, and through sol coating and thin film heat treatment steps, a transparent zinc-titanyl composite thin film is prepared on an FTO conductive glass substrate. The thin film has electrochromism phenomenon, and a large ionic electrolyte can be used. A colored state of the zinc-titanyl composite thin film in the potassium chloride electrolyte is dusty blue, a color fading state is transparent, coloring / fading contrast reaches 37%, and cycle life is good. The zinc-titanyl composite thin film material has advantages of simple process, low cost, and stable electrochromic performance of the film material, and the like, and can be applied to the fields of aerospace, automobile industry, information technology, building materials and the like.

The present invention belongs to the technical field of flow energy storage batteries, and relates to a vanadium / chloride electrolyte and a redox flow battery using the vanadium / chloride electrolyte. According to the present invention, an electric conduction inert material is adopted as the electrode, the electrolyte adopts hydrochloric acid as the supporting electrolyte, and Cl<-> ions are introduced, such that the existing form of V is the stable dual-core vanadium ions [V2O3.4H2O]<4+> or dual-core vanadium-chlorine composite ion [V2O3Cl.3H2O]<3+> and is more stable than the V existing form [VO2(H2O)3]<+> in the electrolyte adopting sulfuric acid as the supporting electrolyte, and the stability of the vanadium cations is increased while the concentration of the vanadium cations in the electrolyte is improved so as to increase the energy density of the battery system; when the battery system electrolyte temperature is greater than 40 DEG C, the two existing forms of V are stable and no V2O5 precipitate can be generated; and the battery system work temperature range is wide, and the battery system can stably work within a temperature range of 0-65 DEG C so as to eliminate the electrolyte temperature control device, reduce the battery system cost, and improve the system efficiency.

The invention belongs to the technical field of electrochemical materials, and in particular relates to a preparation method of flower-shaped nanometer nickel oxide. The preparation method of the flower-shaped nanometer nickel oxide comprises the following steps: electrolyzing a nickel substrate in a chloride electrolyte to obtain a precursor; and performing heat treatment on the precursor to obtain the flower-shaped nanometer nickel oxide. According to the invention, electrochemical oxidation and heat treatment are combined, so that the nickel oxide with a flower-like stacked structure is obtained; and the single piece of nickel oxide has an ultra-thin structure, which is beneficial to improving the electrochemical performance of the material. The results of embodiments show that the nickel oxide prepared by the preparation method provided by the invention has a specific capacity of 170 mAh / g when the nickel oxide is used as a super-capacitor positive electrode material, and has excellent cycle stability.

The invention relates to a method for synthesizing stannous chloride through a membrane electrolysis method and belongs to the technical field of inorganic chemical engineering. A catholyte and an anolyte of certain concentrations are prepared through diluted hydrochloric acid. A cathode plate and an anode plate which are made of refined tin are put into a cathode frame and an anode frame of an electrolytic cell correspondingly. Under the action of direct currents, anode tin loses electrons, stannous ions are formed and enter the anolyte to be combined with chlorine ions, and a stannous chloride electrolyte is formed. The stannous chloride electrolyte is put into a reactor containing a certain amount of tin for concentration. The stannous chloride is obtained after a concentrated solution is subjected to the purification, crystallization and solid-liquid separation processes. According to the novel method provided by the invention, the stannous chloride is generated through electrolysis, concentration, purification, crystallization and other processes, and chlorine gas, hydrogen chloride and other harmful gases are not generated in the electrolysis process. Meanwhile, the method for synthesizing the stannous chloride besides a concentrated hydrochloric acid method and a chlorine gas method is provided. The method for synthesizing the stannous chloride has the advantages of being high in operability, low in cost, environmentally friendly, high in safety and the like and can be used for industrialization popularization.