Anode-free lithium secondary battery having dual-coated anode current collector

Abstract

Disclosed is an anode-free lithium secondary battery including an anode current collector having a dual coating layer, the anode-free lithium secondary battery comprising a cathode active material, a separator, and an electrolyte between a cathode current collector and the anode current collector, wherein the anode current collector is coated with an artificial SEI layer containing a metal, and a natural solid electrolyte interphase (SEI) film is formed on the anode current collector by reaction of at least a part of the artificial SEI layer with the electrolyte when the anode-free lithium secondary battery is first charged.

Images