Lg Chem, Ltd

Sin-Young Jung

Je-Young Kim

Sang-Hoon Choy

Jin-Young Son

Jong-Heon Seol

Hyung-Suk Cho

Yo-Jin Kim

Jung-Keun Yoo

Yoon-Jung Choi

Sung-Joon Park

Disclosed is a positive electrode for a lithium secondary battery which uses a positive electrode active material containing secondary particles with a relatively weak particle strength to improve the adhesion between a positive electrode mixture layer and a current collector, and the positive electrode includes a positive electrode current collector; a primer coating layer including a first polymer binder and a first conductive material, having surface roughness (R) of 85 nm to 300 nm and formed on at least one surface of the positive electrode current collector; and a positive electrode mixture layer formed on an upper surface of the primer coating layer and including a positive electrode active material containing secondary particles with a compressive breaking strength of 1 to 15 MPa, a second polymer binder and a second conductive material.

Positive electrode for lithium secondary battery and method for preparing the same

Growing community of inventors

Daejeon, South Korea

Sin-Young Jung