LITHIUM NICKEL MANGANESE COMPOSITE OXIDE METHOD FOR PRODUCING SAME CATHODE AND ELECTRICITY STORAGE DEVICE USING SAME

• Main Authors: KOSHIBA NOBUHARU, HANAFUSA REIKO, NAKAMURA TATSUYA, KUMASHIRO YOSHIMASA, KOTANI KAZUKI, AKAGAWA KAZUHIRO
• Format: Patent
• Language: English; Korean
• Published: 06.11.2017
• 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

부상인 산화니켈의 함유량이 적은 5 V 급 스피넬 구조 리튬니켈망간 복합 산화물의 제조 방법을 제공한다. 미리 조제한, 망간에 대한 니켈의 몰비가 낮은 (Ni/Mn = 0.10 ∼ 0.29) 스피넬 구조 리튬니켈망간 복합 산화물과, 리튬 화합물과, 니켈 화합물을 함유하는 혼합물을 소성하여, 망간에 대한 니켈의 몰비가 높은 (Ni/Mn = 1/3 정도) 스피넬 구조 리튬니켈망간 복합 산화물을 제조한다. Provided is a method for producing a 5V spinel structured lithium nickel manganese composite oxide which has a low nickel oxide content in a minor phase. A mixture including a pre-prepared spinel structured lithium nickel manganese composite oxide which has a low molar ratio of nickel to manganese (Ni/Mn=0.10 to 0.29), a lithium compound, and a nickel compound is fired to produce the spinel structured lithium nickel manganese composite oxide which has a high molar ratio of nickel to manganese (Ni/Mn= about 1/3).