| 摘要 |
PURPOSE: A secondary battery is provided to reduce welding defects by welding a cap-up part on a conductive plate in a predetermined position, thereby enhancing welding strength. CONSTITUTION: A secondary battery comprises a bare cell in which a cap up part(150) as an electrode terminal is installed, and a conductive plate(200) which is installed at the upper part of the cap up part and connects a plurality of adjacent bare cells in series or parallel. A plurality of embossing parts(153) are formed on the cap up part. A slit part(201) is formed on the conductive plate. The conductive plate is welded on the embossing parts. |
