SECONDARY BATTERY AND THE MANUFACTURING METHOD FOR THE SAME

摘要

Disclosed in the present invention are a secondary battery and a manufacturing method of the same. The secondary battery includes: an electrode assembly; a battery case having a sealing part for sealing an electrode assembly; a lead terminal electrically connected to the electrode assembly and drawn out of the battery case through the sealing part; and a lead terminal film attached to a plasma-treated surface of the lead terminal. According to the present invention, provided are the secondary battery and the manufacturing method of the same, wherein the secondary battery has enhanced bonding strength between the lead terminal drawn outside from the electrode assembly, and a lead terminal film attached to the lead terminal and responsible for sealing between the lead terminal and the battery case.