Lg Chem, Ltd

Yo-Jin Kim

Je-Young Kim

Sang-Hoon Choy

Jin-Young Son

Woo-Ha Kim

Hyung-Suk Cho

Jong-Heon Seol

Yoon-Jung Choi

Jung-Keun Yoo

Sin-Young Jung

Hyun-Chul Roh

Sung-Joon Park

Hyun-Kyung Do

Soul-Gie Hong

Joo-Young Choi

Hyun-Soo Kwon

Kang-Kun Kim

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

The present disclosure refers to an anode for a secondary battery that comprises a low-temperature additive, and an electrochemical device using the anode. More specifically, the present disclosure provides a carbon-based anode material comprising a low-temperature additive such as lithium titanium oxide (LTO) to improve low-temperature output characteristics, thereby providing high output at room temperature and even a low temperature, and an electrochemical device using the anode.

Anode for secondary battery comprising additive for improving low-temperature characteristics, and secondary battery having the same

Growing community of inventors

Daejeon, South Korea

Yo-Jin Kim