ADDITIVE FOR POSITIVE ELECTRODE FOR LITHIUM SECONDARY BATTERY METHOD FOR PREPARING THE SAME AND POSITIVE ELECTRODE FOR LITHIUM SECONDARY BATTERY COMPRISING THE SAME

• Main Authors: SONG CHANG HOON, PARK SUNG MIN, KIM TAE HEE, LEE HA EUN, KIM YONG HOON, LEE HYO BIN, JANG DA BIN, BAN SUNG HO, LEE SANG HUN, PARK MIN SIK, OH SEUNG MIN
• Format: Patent
• Language: English; Korean
• Published: 17.06.2024
• Subjects: BASIC ELECTRIC ELEMENTS; CHEMISTRY; COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F; COMPOUNDS THEREOF; ELECTRICITY; INORGANIC CHEMISTRY; METALLURGY; NON-METALLIC ELEMENTS; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

본 발명은 대기안정성을 향상시킬 수 있는 리튬 이차전지용 양극첨가제 및 이의 제조방법과 이를 포함하는 리튬 이차전지용 양극에 관한 것이다. 본 발명의 일 실시형태에 따른 리튬 이차전지용 양극첨가제는 리튬 이차전지의 양극을 제조하는데 사용되는 양극첨가제로서, Li계 첨가제 코어와; 상기 첨가제 코어의 표면에 NbOxCy(0≤x≤2.5, 0≤y≤1)로 형성된 코팅층을 포함한다. A positive electrode additive for a lithium secondary battery can improve atmospheric stability. A method of manufacturing the same and a positive electrode for a lithium secondary battery includes the same. The positive electrode additive for a lithium secondary battery is used to manufacture the positive electrode for a lithium secondary battery and includes a lithium (Li)-based additive core and a coating layer of NbOXCy (0≤x≤2.5 and 0≤y≤1; where Nb=niobium, O=oxygen, C=carbon) formed on a surface of the additive core.