NICKEL-COBALT COMPOSITE HYDROXIDE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY POSITIVE ELECTRODE ACTIVE MATERIAL, MANUFACTURING METHOD THEREOF, AND METHOD OF MANUFACTURING NONAQUEOUS ELECTROLYTE SECONDARY BATTERY POSITIVE ELECTRODE ACTIVE MATERIAL USING NICKEL-COBALT COMPOSITE HYDROXIDE

摘要

PPROBLEM TO BE SOLVED: To provide a method of manufacturing a nonaueous electrolyte secondary battery positive electrode active material with the charging density improved to attain further improved high energy density of the battery, and furthermore, to provide a high-density and substantially spherical nickel-cobalt composite hydroxide having a large particle size suitable for use as the nonaqueous electrolyte secondary battery positive electrode active material, and to provide an industrial manufacturing method thereof. PSOLUTION: The substantially spherical nickel-cobalt compound hydroxide having an average particle size of 15-50 m is obtained by the manufacturing method including a reaction process of obtaining nickel-cobalt hydroxide primary reaction particles in a reaction tank, and a growth process of obtaining nickel-cobalt composite hydroxide particles by further reacting the primary reaction particles in a growth tank. PCOPYRIGHT: (C)2011,JPO&INPIT