Lg Chem, Ltd

Ji Hoon Jeon

Seung Don Choi

Sung Joon Park

Yong Kyu Ju

Hye Jin Kang

Seung Dong Choi

Provided is an electrode assembly, and more particularly, an electrode assembly having a structure wound in a state, in which a plurality of unit cells having a stacking structure is disposed on a long sheet type separation film, and including the unit cells having two or more types of configurations of electrode materials, wherein a separator stacked on the unit cell having a stacking structure has a coating material coated on both sides thereof and the long sheet type separation film has a coating material coated on one side thereof. According to the present invention, an electrode assembly improving processability of preparation of a battery while reducing initial resistance during the preparation of the battery as well as having battery lifetime equivalent to that of a conventional battery and a lithium secondary battery including the electrode assembly may be provided.

Growing community of inventors

Daejeon, South Korea

Ji Hoon Jeon