Anode having double-protection layer formed thereon for lithium secondary battery, and lithium secondary battery comprising same

Abstract

The present invention relates to a negative electrode for a lithium secondary battery having a double protective layer formed therein, and in particular, to a negative electrode for a lithium secondary battery having a polymer protective layer and a carbon-based protective layer formed therein, and a lithium secondary battery including the same. The lithium secondary battery including the negative electrode according to the present invention is capable of enhancing battery performance and exhibiting stable performance by forming a stable lithium fluoride (LiF) layer and thereby preventing a loss of a solid electrolyte interface (SEI) layer. In addition, a cycle life property is enhanced during charge and discharge by absorbing dead lithium or lithium dendrite and thereby preventing an internal short circuit of the battery.

Dependencies are inferred from the claim text.