Electrodeposited copper foil having optimized peak roughness, electrode containing the same, secondary battery containing the same, and method of manufacturing the same

摘要

Provided is an electrolytic copper foil, an electrode including the same, a secondary battery including the same, and a method of manufacturing the same. The electrolytic copper foil has an optimizedpeak roughness so as to improve a capacity retention ratio of the secondary battery. The electrolytic copper foil includes a first surface and a second surface opposite to the first surface, wherein each of the first surface and the second surface has a peak roughness (Rp) of 0.36 microns to 1.69 microns, and The difference between the peak roughness (Rp) of one surface and the peak roughness (Rp)of the second surface is 0.6 microns or less.