Abstract: Process for manufacturing nickel-cobalt composite represented by Ni1?x?yCoxMnyMz(OH)2 (where, 0.05?x?0.95, 0?y?0.55, 0?z?0.1, x+y+z<1, and M is at least one metal-element selected from Al, Mg, and the like), includes: forming seed particle, while reaction solution having mixed solution containing metal compounds and ammonia solution containing ammonium ion supply source at discharge head of an impeller from 50-100 m2/s2, the concentration of nickel ions is maintained within range 0.1-5 ppm by mass, whereby seed particles are formed; and growing seed particle wherein solution is obtained by supplying mixed and ammonium solutions to reaction solution is agitated with a concentration of nickel ions being maintained within range 5-300 ppm by mass and higher than the concentration of nickel ions in seed particle formation, whereby seed particles are grown up.

Abstract: Process for manufacturing nickel-cobalt composite represented by Ni1-x-yCoxMnyMz(OH)2 (where, 0.05?x?0.95, 0?y?0.55, 0?z?0.1, x+y+z<1, and M is at least one metal element selected from Al, Mg, and the like), includes: forming seed particle, while reaction solution having mixed solution containing metal compounds and ammonia solution containing ammonium ion supply source at discharge head of an impeller from 50-100 m2/s2, the concentration of nickel ions is maintained within range 0.1-5 ppm by mass, whereby seed particles are formed; and growing seed particle wherein solution is obtained by supplying mixed and ammonium solutions to reaction solution is agitated with a concentration of nickel ions being maintained within range 5-300 ppm by mass and higher than the concentration of nickel ions in seed particle formation, whereby seed particles are grown up.

Abstract: Achieved is a nickel-cobalt-manganese composite hydroxide which is excellent in reactivity with a lithium compound, and excellent thermal stability and battery characteristics. The nickel-cobalt-manganese composite hydroxide is represented by a general formula: Ni1-x-y-zCoxMnyMz (OH)2 (0<x??, 0<y??, 0?z?0.1, M represents one or more elements selected from Mg, Al, Ca, Ti, V, Cr, Zr, Nb, Mo, and W), to serve as a precursor for a positive electrode active material of a non-aqueous electrolyte secondary battery, and the nickel-cobalt-manganese composite hydroxide has a specific surface area of 3.0 to 11.0 m2/g as measured by a nitrogen adsorption BET method, and a ratio I(101)/I(100) of peak intensity I(101) of plane (101) to peak intensity I(100) of plane (100) less than 0.300 through an X-ray diffraction measurement.

Abstract: Achieved is a nickel-cobalt-manganese composite hydroxide which is excellent in reactivity with a lithium compound, and able to achieve a positive electrode active material which has excellent thermal stability and battery characteristics. The nickel-cobalt-manganese composite hydroxide is intended to serve as a precursor for a positive electrode active material of a non-aqueous electrolyte secondary battery, and represented by a general formula: Ni1?x?y?zCoxMnyMz(OH)2 (0<x??, 0<y??, 0?z?0.1, M represents one or more elements selected from Mg, Al, Ca, Ti, V, Cr, Zr, Nb, Mo, and W), and the nickel-cobalt-manganese composite hydroxide has a specific surface area of 3.0 to 11.0 m2/g as measured by a BET method through nitrogen adsorption, and an average valence of 2.4 or more for Co and Mn as obtained by redox titration.

Abstract: Provided is a cathode active material that can simultaneously improve the capacity characteristics, output characteristics, and cycling characteristics of a rechargeable battery when used as cathode material for a non-aqueous electrolyte rechargeable battery. After performing nucleation by controlling an aqueous solution for nucleation that includes a metal compound that includes at least a transition metal and an ammonium ion donor so that the pH value becomes 12.0 to 14.0 (nucleation process), nuclei are caused to grow by controlling aqueous solution for particle growth that includes the nuclei so that the pH value is less than in the nucleation process and is 10.5 to 12.0 (particle growth process).

Abstract: The present invention provides nickel-cobalt-manganese composite hydroxide and a method for manufacturing same, the nickel-cobalt-manganese composite hydroxide as a precursor allowing a positive electrode active material having excellent battery characteristics and a high-density to be manufactured. The nickel-cobalt-manganese composite hydroxide is represented by a general formula: Ni1-x-y-zCoxMnyMz(OH)2 (wherein 0<x?1/3, 0<y?1/3, 0?z?0.1, and M is at least one element selected from Mg, Al, Ca, Ti, V, Cr, Zr, Nb, Mo, and W) and serves as a precursor of a positive electrode active material for nonaqueous electrolyte secondary batteries; wherein the specific surface area measured by a nitrogen adsorption BET method is 1.0 to 10.0 m2/g, the carbon content measured by a high frequency combustion infrared absorption method is not more than 0.1% by mass, and the half-value width of a plane in X-ray diffraction is not more than 1.5°.

Abstract: Process for manufacturing nickel-cobalt composite represented by Ni1-x-yCoxMnyMz(OH)2 (where, 0.05?x?0.95, 0?y?0.55, 0?z?0.1, x+y+z<1, and M is at least one metal element selected from Al, Mg, and the like), includes: forming seed particle, while reaction solution having mixed solution containing metal compounds and ammonia solution containing ammonium ion supply source at discharge head of an impeller from 50-100 m2/s2, the concentration of nickel ions is maintained within range 0.1-5 ppm by mass, whereby seed particles are formed; and growing seed particle wherein solution is obtained by supplying mixed and ammonium solutions to reaction solution is agitated with a concentration of nickel ions being maintained within range 5-300 ppm by mass and higher than the concentration of nickel ions in seed particle formation, whereby seed particles are grown up.

Abstract: To improve cycling characteristics of a non-aqueous electrolyte secondary battery by obtaining a nickel-cobalt composite hydroxide having a sharp particle size distribution as a precursor, a slurry including a nickel-cobalt composite hydroxide obtained by continuously supplying an aqueous solution that includes at least nickel and cobalt, an ammonium ion donor aqueous solution and a caustic alkali aqueous solution to a reaction vessel and reacting, is continuously extracted and separated into a large particle size portion and s small particle size portion by classification, and the small particle size portion is continuously returned to the reaction vessel. As a result, a nickel-cobalt composite hydroxide is obtained that is expressed by the general formula: Ni1-x-yCoxMy(OH)2 (where, 0.05?x?0.50, 0?y?0.10, 0.05?x+y?0.50, and M is at least one kind of metal element selected from among Al, Mg, Mn, Ti, Fe, Cu, Zn and Ga, and that satisfies the relationships (D50?D10)/D50?0.30, and (D90?D50)/D50?0.

Abstract: The present invention provides nickel-cobalt-manganese composite hydroxide and a method for manufacturing same, the nickel-cobalt-manganese composite hydroxide as a precursor allowing a positive electrode active material having excellent battery characteristics and a high-density to be manufactured. The nickel-cobalt-manganese composite hydroxide is represented by a general formula: Ni1-x-y-zCoxMnyMz(OH)2 (wherein 0<x?1/3, 0<y?1/3, 0?z?0.1, and M is at least one element selected from Mg, Al, Ca, Ti, V, Cr, Zr, Nb, Mo, and W) and serves as a precursor of a positive electrode active material for nonaqueous electrolyte secondary batteries; wherein the specific surface area measured by a nitrogen adsorption BET method is 1.0 to 10.0 m2/g, the carbon content measured by a high frequency combustion infrared absorption method is not more than 0.1% by mass, and the half-value width of a plane in X-ray diffraction is not more than 1.5°.