| 摘要 |
PURPOSE: A secondary battery is provided to improve coupling strength between a bare cell and a protection circuit module by combining a projected portion of a bare cell with a hole of a lead plate, and to simplify manufacturing process by removing welding process. CONSTITUTION: A secondary battery(10) comprises: a bare cell(100) containing a cap plate(3300) in which one or more protrusions(3310,3315) are formed; a protection circuit module(4000) which is located on the cap plate and protects the bare cell; and a lead plate(4310,4315) which electrically connects the cap plate and the protection circuit module. |
