Lg Chem, Ltd

Eun-Ji Kim

Je-Young Kim

Yo-Han Kwon

Sang-Wook Woo

Su-Jin Park

Heon-Cheol Shin

Woo-Sung Choi

The present invention provides a cable-type secondary battery comprising an inner electrode which includes at least one first polarity electrode having a first polarity current collector with a long and thin shape, whose cross-section perpendicular to its longitudinal direction is a circular, oval or polygonal form; a first polarity electrode active material layer formed on an outer surface of the first polarity current collector; and an electrolyte layer filled to surround the first polarity electrode active material layer, and at least one wire-type second polarity electrode which wholly surrounds the inner electrode and is winding around the exterior thereof. Thus, the inventive cable-type secondary battery provided with an outer winding electrode has excellent flexibility to prevent the release of the active material.

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Busan, South Korea

Eun-Ji Kim