Lg Energy Solution, Ltd.

Seung Jun Min

Jung Jin Kim

Duck Hee Kim

A jelly-roll type electrode assembly including a negative electrode, a first separator, a positive electrode, and a second separator that are wound together is provided. The negative electrode includes a negative electrode active material on a surface of a negative electrode collector and which has, on a first end thereof, a first negative electrode collector-exposed portion that is not coated with the negative electrode active material to expose the surface of the negative electrode collector. The negative electrode is wound together with the first separator such that the first negative electrode collector-exposed portion is disposed in a central region where the winding starts, and a negative electrode tab is coupled to the first negative electrode collector-exposed portion.

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Daejeon, South Korea

Seung Jun Min