Copper foil capable of preventing defects of tear or wrinkle thereof, electrode comprising the same, secondary battery comprising the same, and method for manufacturing the same

Abstract

According to one embodiment of the present disclosure, there is provided a copper foil including a copper film including 99.9 wt % or more of copper, wherein the copper film has a room temperature loss factor of 0.05 or less, wherein the room temperature loss factor is calculated by Equation 1 below, room temperature loss factor=room temperature loss modulus/room temperature storage modulus.  [Equation 1]

Dependencies are inferred from the claim text.