LITHIUM METAL ELECTRODE FOR LITHIUM SECONDARY BATTERY WITH SAFE PROTECTIVE LAYER AND LITHIUM SECONDARY BATTERY COMPRISING THE SAME

摘要

The present invention relates to a lithium metal electrode having a stable protective layer, and a lithium secondary battery comprising the same. The lithium metal electrode having a stable protective layer of the present invention prevents internal short-circuit of the battery by intercalating and absorbing free lithium-ion or lithium dendrites, wherein the free lithium-ion is generated by charge and discharge because a lithium dendrite absorbent material is contained in a polymer protective film, and improves charge-discharge cycle lifespan properties. In addition, the lithium dendrite absorbent material has improved battery stability due to relatively low reactivity.