Sk on Co., Ltd.

Gi Hyeon Moon

Hee Gyoung Kang

Jong Hyuk Lee

Mi Ryeong Lee

Hae Suk Hwang

So Hyun Park

Chan Young Jeon

The lithium secondary battery includes a cathode which includes a cathode active material layer including a cathode current collector, a cathode tab protruding from one end thereof in a longitudinal direction of the cathode current collector, a second cathode portion disposed spaced apart from the cathode tab on the cathode current collector, and a first cathode portion disposed adjacent to the cathode tab on the cathode current collector and having an electrode density higher than that of the second cathode portion, and an anode disposed to face the cathode. Life-span characteristics of the lithium secondary battery may be improved by controlling the electrode density in the peripheral part of the cathode tab.

Lithium secondary battery

An electrode for a lithium secondary battery includes an electrode current collector, an electrode active material layer formed on at least one surface of the electrode current collector and including electrode active material particles, and a lithium salt-containing coating formed on at least portions of surfaces of the electrode active material particles or at least a portion of the surface of the electrode active material layer. The electrode for a lithium secondary battery may have a predetermined surface roughness.

Electrode for lithium secondary battery and lithium secondary battery including the same

Growing community of inventors

Daejeon, South Korea

Gi Hyeon Moon