Class / Patent application number | Description | Number of patent applications / Date published |
423594300 | Nickel (Ni) containing | 10 |
20090185971 | CRYSTALLOGRAPHICALLY-ORIENTED CERAMIC - A crystallographically-oriented ceramic including first regions, in which crystal nuclei remain and which contain a specific element in a predetermined concentration range and extend at least partially in a layered shape along a crystal plane, and second regions, which contain the specific element in a different concentration range from the first regions and extend at least partially in a layered shape along the crystal plane. The regions are alternately repeated, and a compositional distribution exists in a direction orthogonal to the crystal plane. In the first region, the concentration of Na is higher, the concentration of K is lower, the concentration of Nb is lower, and the concentration of Ta is higher than the second region, and in the second region, the concentration of Na is lower, the concentration of K is higher, the concentration of Nb is higher, and the concentration of Ta is lower than the first region. | 07-23-2009 |
20100124531 | NICKEL-MANGANESE BINARY COMPOUND ELECTRODE MATERIALS FOR AN ELECTROCHEMICAL SUPERCAPACITOR AND METHOD FOR PREPARING THE SAME - The present invention relates to nickel-manganese (Ni—Mn) binary compounds useful as an electrode material for electrochemical supercapacitors, which is one of nickel-manganese coprecipitated hydroxides having a spinel-like structure, nickel-manganese coprecipitated hydroxocarbonates having a calcite-like structure and nickel-manganese oxides having an ilmenite-like structure. The present invention also relates to a method of preparing the above nickel-manganese (Ni—Mn) binary compounds by chemical coprecipitation and freeze-drying. Since the nickel-manganese binary compounds according to the present invention show high electrochemical efficiency, good reversibility, excellent specific capacity per unit area, a low capacity fade rate and improved cycle life, they can be effectively used as an electrode material for electrochemical supercapacitors. | 05-20-2010 |
20140065058 | APPARATUS FOR PREPARING CATHODE ACTIVE MATERIAL PRECURSOR FOR LITHIUM SECONDARY BATTERIES AND METHOD FOR PREPARING THE SAME USING THE APPARATUS - Provided are an apparatus for preparing a cathode active material precursor for lithium secondary batteries including a cylindrical outer chamber, an inner cylinder that has the same central axis as the outer chamber and is mounted to rotatably move along the central axis, an electric motor to transfer power to rotate the inner cylinder, a reactant inlet disposed on the outer chamber, to add reactants to a space between the outer chamber and the inner cylinder, and an outlet disposed in the outer chamber, to obtain reaction products after reaction in the space between the outer chamber and the inner cylinder, and a method for preparing a cathode active material precursor for lithium secondary batteries using the apparatus. | 03-06-2014 |
20140234203 | REACTOR FOR PREPARING PRECURSOR OF LITHIUM COMPOSITE TRANSITION METAL OXIDE AND METHOD FOR PREPARING PRECURSOR - Disclosed is a reactor for preparing a precursor of lithium composite transition metal oxide for lithium secondary batteries, the reactor having a closed structure including a stationary hollow cylinder; a rotary cylinder having the same axis as the stationary hollow cylinder and an outer diameter smaller than an inner diameter of the stationary hollow cylinder, an electric motor to generate power, enabling rotation of the rotary cylinder, a rotation reaction area disposed between the stationary hollow cylinder and the rotary cylinder, wherein ring-shaped vortex pairs that are uniformly arranged in a rotation axis direction and rotate in opposite directions are formed in the rotation reaction area, and an inlet through which a reactant fluid is fed into the rotation reaction area and an outlet through which the reactant fluid is discharged from the rotation reaction area. | 08-21-2014 |
20160016815 | METHOD FOR PREPARING NICKEL-COBALT-MANGANESE HYDROXIDE - A method for preparing nickel-cobalt-manganese hydroxide. The method comprises the following steps: (1) dissolving microcrystalline cellulose into water to obtain a suspension; and adding a nickel source, a cobalt source, and a manganese source into the suspension to obtain a solution containing nickel, cobalt, and manganese; (2) adding hexamethylenetetramine into the solution containing nickel, cobalt, and manganese, heating the reaction solution to 80-90° C., and reacting for 5-10 min, then heating with a microwave hydrothermal synthesis instrument at a frequency of 2450 MHz for 10-60 min; and (3) filtering the reaction solution obtained in step (2), and taking the filter residue, washing the filter residue with pure water and ethanol respectively, then drying, crushing, and screening the filter residue to obtain nickel-cobalt-manganese hydroxide. Nickel-cobalt-manganese hydroxide prepared from the abovementioned method has a uniform particle size and consistent morphology and structure; thus solving the problems of the uncontrollable appearance and structure and the inconsistent performances of the product caused by the vigorous reaction in the existing method for preparing nickel-cobalt-manganese hydroxide. | 01-21-2016 |
423594400 | And alkali metal or alkaline earth metal containing | 5 |
20080241053 | Lithium-nickel-cobalt-manganese containing composite oxide - Coagulated particles of nickel-cobalt-manganese hydroxide wherein primary particles are coagulated to form secondary particles are synthesized by allowing an aqueous solution of a nickel-cobalt-manganese salt, an aqueous solution of an alkali-metal hydroxide, and an ammonium-ion donor to react under specific conditions; and a lithium-nickel-cobalt-manganese-containing composite oxide represented by a general formula, Li | 10-02-2008 |
20090004097 | POSITIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY, METHOD OF PREPARING THE SAME, AND RECHARGEABLE LITHIUM BATTERY COMPRISING THE SAME - The present invention relates to a positive active material for a rechargeable lithium battery, a method of preparing the same, and a rechargeable lithium battery comprising the same. The positive active material includes a lithium/nickel-based compound wherein primary particles having an average particle diameter ranging from 1 μm to 4 μm are agglomerated to form secondary particles. The positive active material of the present invention has excellent electrochemical performance and outstanding inhibition to swelling at high temperatures. | 01-01-2009 |
20130011331 | ACTIVE MATERIAL PARTICLES AND USE OF SAME - Active material particles are provided that exhibit performance suitable for increasing the output of a lithium secondary battery and little deterioration due to charge-discharge cycling. The active material particles provided by the present invention have a hollow structure having secondary particles including an aggregate of a plurality of primary particles of a lithium transition metal oxide, and a hollow portion formed inside the secondary particles, and through holes that penetrates to the hollow portion from the outside are formed in the secondary particles. BET specific surface area of the active material particles is 0.5 to 1.9 m | 01-10-2013 |
20130045158 | METHOD FOR PRODUCING MIXED OXIDES COMPRISING LITHIUM - Process for preparing a lithium-containing mixed oxide powder, wherein
| 02-21-2013 |
20160254540 | IMPROVED LITHIUM METAL OXIDE CATHODE MATERIALS AND METHOD TO MAKE THEM | 09-01-2016 |