POSITIVE ELECTRODE MATERIAL FOR LITHIUM METAL BATTERY AND MANUFACTURING METHOD THEREOF

• Main Authors: PARK EUN KYUNG, SON BYOUNG KUK, CHOI JUNG HUN, JANG MIN CHUL, PARK CHANG HUN, HA SEONG MIN, HWANG HYE WON
• Format: Patent
• Language: English; Korean
• Published: 06.03.2020
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

The present invention relates a positive electrode material for a lithium secondary battery comprising a first positive electrode active material that is a compound whose stoichiometric amount of lithium is insufficient or removed, and a second positive electrode active material that is a compound whose stoichiometric amount of lithium is not insufficient, and to a lithium secondary battery comprising the same. According to the present invention, energy density reduction can be alleviated. 본 발명은 화학량론적인 양에서 리튬이 부족하거나 제거된 상태의 화합물인 제1 양극활물질 및 화학량론적인 리튬의 양이 부족하지 않은 화합물인 제2 양극활물질을 포함하는 리튬 이차전지용 양극재 및 이를 포함하는 리튬 이차전지에 관한 것이다.