LEAD TAB FOR BONDING TO ELECTRODE TAB, METHOD FOR BONDING LEAD TAB TO ELECTRODE TAB, AND LITHIUM SECONDARY BATTERY COMPRISING STRUCTURE IN WHICH LEAD TAB IS BONDED TO ELECTRODE TAB

A lead tab for bonding an electrode tab, a method for bonding the lead tab to the electrode tab, and a lithium secondary battery including a structure in which the lead tab is bonded to the electrode tab, which can prevent deformation of a lithium negative electrode tab by exposure while improving the physical strength and safety of the bonding area, are disclosed. The lead tab for bonding to the electrode tab includes: a first metal lead; and a second metal lead, wherein one end of the second metal lead is in contact with the first metal lead, and capping the electrode tab to form a bonding area.