68 results about "Nickel" patented technology

A nonaqueous electrolyte secondary battery having a positive electrode including a positive electrode active material, a negative electrode and a nonaqueous electrolyte comprising a solute dissolved in a solvent, the positive electrode active material is a mixture of a lithium-manganese composite oxide and a lithium-nickel composite oxide represented by LiNiaM11- aO2 (M1 being at least one element selected from the group consisting of B, Mg, Al, Ti, Mn, V, Fe, Co, Cu, Zn, Ga, Y, Zr, Nb, Mo and In, and a being 0<a<=1) and/or a lithium-cobalt composite oxide represented by LiCobM21- bO2 (M2 being at least one element selected from the group consisting of B, Mg, Al, Ti, Mn, V, Fe, Ni, Cu, Zn, Ga, Y, Zr, Nb, Mo and In, and being 0<b<=1), and the nonaqueous electrolyte contains a phosphoric ester and an ether or an ester having a halogen substituted phenyl.

A semiconductor carrier film includes (i) a base film having insulating property, (ii) a barrier layer provided on the base film, the barrier layer including nickel-chrome alloy as a main component, and (iii) a wire layer provided on the barrier layer, the wire layer being made of conductive material including copper, and a ratio of chrome in the barrier layer is 15% to 50% by weight. A semiconductor device is formed by bonding a semiconductor element to the wire layer. The semiconductor carrier film and the semiconductor device are suitable for attaining finer pitches and higher outputs, because insulating resistance between adjacent terminals is less likely to deteriorate then in conventional art even in the environment of high temperature and moisture.

The invention discloses a method for preparing a nickel-cobalt-manganese ternary material precursor. By virtue of the method, waste small-particle-size nickel-cobalt-manganese ternary material precursors in a product are separated out and recycled into a reaction kettle, so that the ternary material precursors with the particle size of 7-15 micro meters account for over 95% in the product.

The invention relates to a lithium silicate-coated Ni-Co lithium aluminate positive electrode material and a preparation method thereof. The mass percent of lithium silicate in the material accounts for 1-10wt%, a coating layer with a thickness being 2-20 nanometers is formed from the silicon silicate and is coated on Ni-Co lithium aluminate, and the positive electrode material is a spherical particle with a grain size being 5-15 micrometers. The method comprises the following steps of (1) adding a silicon source into an organic solvent, performing uniform stirring, adding water, adding Co-Alnickel hydroxide, performing heating and stirring reaction, and performing drying to obtain silicon dioxide-coated Co-Al nickel hydroxide precursor powder; and (2) grinding and uniformly mixing the silicon dioxide-coated Co-Al nickel hydroxide precursor powder and a lithium salt, placing the mixture in a tubular furnace, and performing two-segment calcination under an oxidization atmosphere, thereby obtaining the lithium silicate-coated Ni-Co lithium aluminate positive electrode material. The positive electrode has relatively good cycle stability and large-rate discharging performance; and bythe method, the problem of lithium resided on a surface during conventional coating can be effectively reduced, and the method is low in cost and simple in process and is suitable for industrial production.

The invention discloses a cylindrical power battery module structure which comprises at least two battery modules connected in series with each other. Each battery module comprises a battery cell group, a battery cell bracket, an anode nickel piece, a cathode nickel piece and a circuit board; the battery module structure comprises a nickel piece connection rigid pressure plate, nickel piece connection bolt and nut, module connection bolt and nut and a support; the battery cell brackets, the battery cell groups, the anode nickel pieces and the cathode nickel pieces are assembled to form the battery modules; and the battery modules are connected into a battery module through the nickel piece connection rigid pressure plate, the nickel piece connection bolt, the nickel piece connection nut, the module connection bolt, the module connection nut and the support. According to the invention, the nickel pieces among the battery modules are connected by the multipoint bolts of the rigid pressure plate; the nickels of the module are in direct close pressure-equalizing connection, and the little total internal resistance, low self consumption and high reliability of electric connection of the module are guaranteed; the anode side structure and the cathode side structure of the battery module correspond to and are matched with each other; the capacity expansion of the battery module is facilitated, and the standard design of the battery module structure is easy to realize; and large-scale production is facilitated, and the manufacturing cost is lowered.

The invention relates to a titanium-carbide-based steel-bonded cemented carbide material which is characterized in that titanium carbide (TiC) is adopted as a hard base of the material, and alloy tool steel is adopted as a binding phase. The volume percentage of the titanium carbide is 35-45%, and the mass percentage of the alloy tool steel is 55-65%. A total mass of the titanium carbide and the alloy tool steel is 100%. The alloy tool steel is composed of chromium, molybdenum, aluminum, nickel, titanium, and iron. According to the invention, the alloy material is prepared with an advanced low-pressure hot-isostatic-pressing sintering technology. The production process is simplified, production efficiency is improved, and energy consumption is greatly saved.

The invention belongs to the technical field of micro-electronics, particularly disclosing a nanowire MOS transistor and a preparation method thereof. The nanowire MOS transistor uses metallic nickel to serve as the drain and source diffusion material of III-V semiconductor nanowire and utilizes the nickel diffusion mechanism under high temperature to ensure that metallic nickel diffuses to III-V material; formed low-resistance Ni-III-V alloy serves as the drain and source diffusion material of the III-V semiconductor nanowire MOS pipe so as to realize ohmic contact between the drain and source material and channel material. The MOS transistor disclosed by the invention has the advantages of simple structure, convenient manufacture, small contact resistance and the like, can effectively lower the possibility of producing parasitic capacitance and effectively lowers the cut-off current of the MOS transistor. Meanwhile, the invention also discloses a preparation method of the nanowire MOS transistor, can effectively control the channel length of the MOS transistor so as to ensure that a semiconductor device has larger operating current.

The invention discloses a boron-bearing chromium molybdenum nickel wear-resistant alloy comprising the following chemical components: 0.30-0.50% of C, 0.8-2.6% of B, 0.5-1.8% of Mn, 0.4-1.0% of Si, 4.0-6.0% of Cr, 2.0-4.5% of Mo, 0.8-2.0% of Ni, 3.5-5.5% of V, 0.02-0.04% of Ce, 0.02-0.04% of La, 0.10-0.20% of Mg, 0.01-0.03% of Ca, 0.05-0.10% of Ba, 0.040 or less of S, 0.040 or less of P, and balance of Fe and unavoidable impurities; the preparation steps include melting and heat treatment; the present invention aims to provide the boron-bearing chromium molybdenum nickel wear-resistant alloy which is safer, more wear resistant, and better in toughness, and also aims to provide a preparation method which is simple and easy to operate, simple in technological process and low in cost for preparation of the boron-bearing chromium molybdenum nickel wear-resistant alloy.

A NiCuSiFe alloy prepared from Ni and Cu contained waste through resmelting contains Ni (25-60 wt%), Cu (25-60), Si (8-15), impurity (less than or equal to 0.2) and Fe (the rest), and can also be used as additive for smelting refractory steel, high-weatherability steel and other alloy steel. Its advantages are low smelting point, high dispersity and deoxidizing effect in molten steel and low cost.

A process for preparing an amine by reacting a primary or secondary alcohol, aldehyde and/or ketone with hydrogen and a nitrogen compound selected from the group of ammonia and primary and secondary amines, in the presence of a supported copper-, nickel- and cobalt-containing catalyst, wherein the catalytically active material of the catalyst, before the reduction thereof with hydrogen, comprises oxygen compounds of aluminum, of copper, of nickel, of cobalt and of tin, and in the range from 0.2 to 5.0% by weight of oxygen compounds of yttrium, of lanthanum, of cerium and/or of hafnium, each calculated as Y₂O₃, La₂O₃, Ce₂O₃ and Hf₂O₃ respectively, and catalysts as defined above.

A polymethylacrylic acid higher ester pour point depressant has polymerization reaction formulas shown in the formula (I) and the formula (II) defined in the specification. A preparation method comprises the steps: a synthetic asymmetric double-Schiff alkali metal complex (nickel system, copper system and other post-transition metal complexes) as a main catalyst, a catalytic system is formed fromthe complex and azodiisobutyronitrile or benzoperoxide, and methacrylate higher ester monomers are catalyzed to undergo a polymerization reaction to produce the polymethylacrylic acid higher ester polymer under certain conditions. The polymethylacrylic acid higher ester polymer prepared by the method has a certain pour point depressing effect on diesel distillates or lubricating oil fractions andis used as a pour point depressant for diesel or lubricating oil.

The invention provides a system for continuously recycling a waste ternary lithium-ion battery and belongs to the technical field of recycling of lithium-ion batteries. The system comprises a pre-treatment unit, an acid leaching unit, a primary impurity removal unit, a co-precipitation unit, a secondary impurity removal unit and an ammonia recycling unit, wherein the pre-treatment unit comprises apulverizer, a pulse dust collection device, a positive and negative electrode powder cabin and a separation machine; the acid leaching unit comprises a leaching reaction kettle and a micro-filteringmachine I; the primary impurity removal unit comprises an impurity removal reaction kettle and a squeezing machine; the co-precipitation unit comprises a material preparation kettle, a co-precipitation reaction tank and a centrifugal machine; the secondary impurity removal unit comprises a secondary impurity removal reaction kettle and a micro-filtering machine II; the ammonia recycling unit comprises a heater, an evaporation crystallization device, a condenser and an ammonia liquid receiving tank. The invention further provides a technology for continuously recycling the waste ternary lithium-ion battery by utilizing the system. According to the system provided by the invention, a prepared nickel-cobalt-manganese ternary material precursor has high purity and large tap density; grains have a small grain diameter and narrow distribution and are uniformly mixed; a lithium sulfate solution can be directly used for producing lithium carbonate.

The embodiment of the invention discloses a ceramic PCB manufacturing method through metal line filling. The ceramic PCB manufacturing method comprises the following steps of (1) pattern transferring; (2) pattern electroplating; (3) film stripping; (4) fitting; (5) sintering; and (6) surface treatment. According to the ceramic PCB manufacturing method through metal line filling, etching is not required in line preparation, a metal line with high thickness range and high precision can be obtained, and the metal line can be a copper foil line or a nickel foil line so that a ceramic substrate with the copper foil line or the nickel foil line can be used for welding of LED lamp beads and wiring. Besides, the ceramic PCB manufacturing method through metal line filling has advantages of being simple in technology, relatively low in cost and relatively high in reliability.

The invention discloses a method for efficiently separating valuable metal from a mixed solution containing nickel, cobalt, manganese and lithium. The method comprises the steps: (1) the mixed solution containing the nickel, the cobalt, the manganese and the lithium, and an alkaline solution are simultaneously added into a reaction still loaded with underflow to be subjected to a precipitation reaction, heating and stirring are kept, and the adding speed of the mixed solution containing the nickel, the cobalt, the manganese and the lithium, and the alkaline solution is controlled to control the pH value of a solution to be 8-14; (2) after the mixed solution containing the nickel, the cobalt, the manganese and the lithium is added completely, the alkaline solution is added continuously to control the pH value of slurry to be stabilized to be 10-12, the alkaline solution stops being added, and heat preservation and stirring are carried out for an aging reaction; and (3) the aged slurry in the step (2) is subjected to solid-solution separating to obtain precipitated residues and a precipitated mother solution, the obtained precipitated residues are mixtures of nickel-cobalt-manganesehydroxides and oxides, and the obtained precipitated mother solution is a lithium-enriching solution. According to the method, the recovering rates of the nickel, the cobalt, the manganese and the lithium in the mixed solution containing the nickel, the cobalt, the manganese and the lithium are all larger than 99%.

A surface modify ternary cathode material is prepared by coat a surface modified layer on that core of the ternary cathode material; The ternary cathode material core is Li1+kNixCoyMzO2, wherein M isone of Al, Mn, Ti and Mg, and the ternary cathode material core is Li1+kNixCoyMzO2, wherein M is one of Al, Mn, Ti and Mg. 0.1 <= k <= 0. 1, 0 < x < 1, 0 < y < 1, 0 < z < 1; The surface modification layer is formed of two surface modification substances, one is yttria stabilized zirconia, the other is oxide, selected from Al2O3, SiO2, MgO and ZrO2. The invention also provides a preparation methodof the surface-modified ternary cathode material and a battery made of the surface-modified ternary cathode material. The YSZ provided by the invention is an oxide containing oxygen vacancies, which is favorable for lithium ion migration. The surface of the high nickel ternary cathode material modified by the YSZ has a faster lithium ion migration rate, and the lithium ion diffusion problem can bewell improved by covering the surface of the high nickel ternary cathode material, and the magnification performance of the material can be improved.

A high-strength high-conductivity rare earth copper-magnesium alloy contact wire comprises, by weight percentage, 0.1-0.8% of magnesium, 0.1-0.4% of nickel, 0.1-0.4% of zinc, 0.1-0.4% of silver, 0.05-0.15% of a rare earth element and the balance copper and inevitable impurity elements, wherein the rear element is one or two of cerium and neodymium. When the rare earth element is added in the form that the cerium and neodymium are mixed, the weight ratio of the cerium and neodymium is 1:1-1:2. The high-strength high-conductivity rare earth copper-magnesium alloy contact wire overcomes the technical defect that the requirements on electrical conductivity and the tensile strength of a copper-magnesium alloy cannot be met at the same time in the prior art and can meet the performance requirement of the copper alloy for the railway contact wire.

The invention provides the high-strength 23Mn2CrNiMnVERA steel for railway train connection and a preparation method thereof. The 23Mn2CrNiMnVERA steel comprises the following components of carbon, silicon, manganese, vanadium, aluminum, chromium, molybdenum, nickel, cerium, copper, phosphorus, sulfur, Fe and non-removable impurities; the preparation method comprises the steps of molten iron pretreatment, converter smelting, LF refining, VD vacuum refining and continuous casting tapping. The high-strength 23Mn2CrNiMoVREA steel for connection has the advantages of being easy to weld, high in tensile property and high in yield strength at low temperature (-60 DEG C); and the preparation method of the high-strength 23Mn2CrNiMnVERA steel for the railway train connection has the advantages of being easy to control in the process and suitable for popularization.

The invention relates to a plating layer for an electrochemistry corrosion resistant electronic encapsulation shell, which comprises the following step: sequentially plating an inert metal-plating layer, a ferronickel-plating layer, a nickel-plating layer and a gold-plating layer on a surface layer of a shell matrix and a surface layer of a lead from the inner part to the outer part, wherein the ferric content of the ferronickel-plating layer is from 15 to 65 percent by weight. The invention can prevent and retard the electrochemistry corrosion of the electronic encapsulation shell.

The invention discloses anti-corrosion and anti-wear high manganese steel and a preparation method thereof. The high manganese steel consists of the following components in percentage by weight: 1.0-1.2% of carbon, 14-15% of manganese, 0.48-0.6% of silicon, 10.5-12.5% of chromium, 0.5-0.6% of molybdenum, 0.3-0.5% of nickel, 0.1-0.3% of aluminum, 0.08-0.12% of copper, 0.01-0.02% of nitrogen, 0.01-0.03% of rare earth element, less than or equal to 0.03% of phosphorus, less than or equal to 0.03% of sulfur and the balance of iron. The preparation method comprises: (1) smelting: adding alloy and metal raw materials including technically pure iron, nitrided ferrovanadium, ferromanganese, technically pure aluminum and the like into an electric furnace, heating to melt all the alloy and metal raw materials, maintaining for 30 minutes at the temperature of 1,730-1,750DEG C, and discharging at the temperature of 1,460-1,500 DEG C; (2) casting; (3) heat treatment after casting; and (4) product acceptance. The anti-corrosion and anti-wear high manganese steel has the advantages of good anti-corrosion property, good anti-wear property, good impact toughness, long service life and short production period.