Lg Energy Solution, Ltd.

Koo Seung Chung

Sung Chul Park

Ung Ju Lee

Jung Woo Yoo

Young Jae Kim

Won Hee Jeong

The present invention provides an electrode for a lithium secondary battery, the electrode including an electrode current collector, an electrode active material layer formed on the electrode current collector, and an insulating layer formed on the electrode current collector and overlapping the electrode active material layer in a partial region. Here, a thickness of the electrode active material layer in the region in which the electrode active material layer and insulating layer do not overlap is d, a thickness of the insulating layer in the region in which the electrode active material layer and insulating layer do not overlap is d, and d/dis 0.02 to 0.4.

Electrode for lithium secondary battery, method of preparing the same and lithium secondary battery including the same

The present invention provides a composition for forming an insulating layer for a lithium secondary battery, which includes a binder polymer; a coloring agent including at least one selected from the group consisting of an organic dye, an oil-soluble dye and an organic phosphor; and a solvent, and has a viscosity of 1,000 cP or more at 25&#xb0; C.

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Daejeon, South Korea

Koo Seung Chung