Copper foil with minimized bagginess and tear, electrode comprising the same, secondary battery comprising the same and method for manufacturing the same

1. A copper foil comprising:

a copper layer; and

an anticorrosive layer disposed on the copper layer,

wherein the copper foil haws a peak to arithmetic mean roughness (PAR) of 0.9-12.4, a tensile strength of 30.1-57.3 kgh/mm2, and a weight deviation of 2.79% to 2.83%,

wherein the copper foil has a surface (220) and the surface (220) has a texture coefficient [TC(220)] of 0.51-1.26,

wherein the PAR is calculated in accordance with the following Equation:

PAR=Rp/Ra,

wherein Rp is a maximum profile peak height and Ra is an arithmetic mean roughness.

2. The copper foil according to claim 1 , wherein the anticorrosive layer comprises at least one of chromium (Cr), a silane compound, or a nitrogen compound.

3. The copper foil according to claim 1 , wherein the copper foil has a thickness of 4 μm to 30 μm.

4. An electrode for secondary batteries comprising:

the copper foil according to claim 1 ; and

an active material layer disposed on the copper foil.

5. A secondary battery comprising:

a cathode;

an anode facing the cathode;

an electrolyte disposed between the cathode and the anode to provide an environment enabling ions to move; and

a separator to electrically insulate (isolate) the cathode from the anode, wherein the anode comprises:

the copper foil according to claim 1 ; and

an active material layer disposed on the copper foil.

6. A flexible copper foil laminate film comprising:

a polymer membrane; and

the copper foil according to claim 1 disposed on the polymer membrane.