電極アセンブリおよびこれを含む二次電池

Abstract

To provide an electrode assembly capable of preventing discoloration of a ceramic layer for improving safety of a secondary battery, and provide a secondary battery including the same.SOLUTION: An electrode assembly is a winding type electrode assembly including a first electrode, a separator film, and a second electrode. The first electrode includes: a first substrate; a front surface first active material layer and a rear surface first active material layer respectively provided on at least a front surface and a rear surface of the first substrate; a first termination functional layer and a second termination functional layer respectively formed on the front surface and the rear surface of the first substrate at a predetermined distance from the front surface first active material layer and the rear surface first active material layer; and a step compensation layer disposed on the second terminal functional layer, and corresponding to a gap between the front first active material layer and the first terminal functional layer. The first termination functional layer is wrapped around the electrode assembly at least one time or more.SELECTED DRAWING: Figure 2

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