Manganese-cobalt compound hydroxide, method for producing same, cathode active material, method for producing same, and non-aqueous electrolyte secondary battery

• Main Authors: YAMAUCHI MITSURU, RYOSHI KAZUOMI
• Format: Patent
• Language: Chinese; English
• Published: 10.05.2017
• Subjects: BASIC ELECTRIC ELEMENTS; CHEMISTRY; COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F; ELECTRICITY; INORGANIC CHEMISTRY; METALLURGY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

Provided is a cathode active material that is for a non-aqueous electrolyte secondary battery able to achieve high electrode density and that obtains high output characteristics and battery capacity when used in a battery cathode, and provided is a non-aqueous electrolyte secondary battery that obtains a high output at a high capacity by using the cathode active material. A lithium-manganese-cobalt complex oxide is prepared comprising plate-shaped secondary particles aggregated by means of the plate surfaces of a plurality of plate-shaped primary particles overlapping, the shape resulting from projecting in a direction perpendicular to the plate surface of the plate-shaped primary particles is a sphere, an ellipse, an oval, or the planar projection of a blocky object, the aspect ratio of the secondary particles is 3-20, and the volume average particle size (Mv) according to a laser diffraction scattering method measurement is 4-20 micrometers. 提供：用于电池的正极时可以得到高的输出特性和电池容量、能够达成高电极密度的非水系电解质二次电池用的正极活性物质；以及，使用该正极活性