Negative Electrode For Secondary Battery, And Jelly Roll Type Electrode Assembly Including Same

Abstract: The present invention relates to a negative electrode for a secondary battery and a jelly-roll type electrode assembly including same. The negative electrode satisfies a specific range of the creep rate condition represented by equation 1 and thus receives remarkably low stress from the outside when applied to the jelly-roll type electrode assembly, even when containing a silicon (Si)-based active material. Therefore, the negative electrode can suppress the deformation and/or expansion of the electrode assembly and significantly reduce the stress that accumulates in a negative electrode current collector, thereby reducing the risk of internal short-circuiting in the electrode assembly. Thus, the negative electrode has the advantage of excellent safety.

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