NEGATIVE ELECTRODE FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY COMPRISING THE SAME

• Main Authors: RYU, Sang Baek, JANG, Hwan Ho, KIM, Moon Sung, KIM, Hyo Mi, YOOK, Seung Hyun, PARK, Da Hye, CHUNG, Da Bin, BANG, Sang In, HAN, Jun Hee
• Format: Patent
• Language: English; French; German
• Published: 02.10.2024
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

A negative electrode for a lithium secondary battery and a lithium secondary battery including the same are disclosed.In some implementations, the negative electrode for a secondary battery includes a negative electrode current collector, a first negative electrode mixture layer including a first silicon-based negative electrode active material on at least one surface of the negative electrode current collector, and a second negative electrode mixture layer including a second silicon-based negative electrode active material on the first negative electrode mixture layer, wherein the second silicon-based negative electrode active material is SiOx (0≤x<2) doped with a metal element.