NICKEL COBALT COMPLEX HYDROXIDE PARTICLES AND METHOD FOR PRODUCING THE SAME POSITIVE ELECTRODE ACTIVE MATERIAL FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY AND METHOD FOR PRODUCING THE SAME AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY

• Main Authors: SONOO MASATO, YOSHIDA HIDEKI, KITAGAWA TAKAHIRO
• Format: Patent
• Language: English; Korean
• Published: 07.11.2016
• 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

A preparation method of nickel cobalt complex hydroxide comprises: a first crystallization step of obtaining nickel cobalt complex hydroxide particles by individually and simultaneously supplying a solution including Ni, Co, and Mn, a complex ion forming agent, and a base solution to a reaction container; and a second crystallization step of crystallizing complex hydroxide particles including Ni, Co, Mn, and a component M on the nickel cobalt complex hydroxide particles by additionally individually and simultaneously supplying a solution including Ni, Co, and Mn, a complex ion forming agent, a base solution, and a solution containing the component M to a reaction container, after the first crystallization step. 니켈 코발트 복합 수산화물을 제조하는 방법은, Ni, Co, Mn을 함유하는 용액, 복합 이온 형성제, 및 기본 용액을 하나의 반응 용기에 개별적으로 및 동시에 공급하여, 니켈 코발트 복합 수산화물 입자들을 얻는 제1 결정화 단계, 및 제1 결정화 단계 후에, 니켈, 코발트, 망간을 함유하는 용액, 복합 이온 형성제의 용액, 기본 용액, 및 상기 요소 M을 함유하는 용액을 반응 용기에 개별적으로 및 동시에 추가로 공급하여, 니켈 코발트 복합 수산화물 입자들 상에 니켈, 코발트, 망간 및 상기 요소 M을 함유하는 복합 수산화물 입자들을 결정화하는 제2 결정화 단계를 포함한다.