| 摘要 |
<p>PURPOSE: A secondary battery is produced by easily control the power of the battery by varying a welding method when connecting an electrode tap of jelly rolls installed in a case with an electrode terminal or a cap plate. CONSTITUTION: A secondary battery comprises the following: plural jelly rolls(40) with first electrode tabs(20) and second electrode tabs(30); a case(10) for storing the jelly rolls, including an opening on the upper side; and a cap plate(50) including an electrode terminal, and sealing the opening of the case. The first electrode tabs are connected to the electrode terminal. The second electrode tabs are connected to the cap plate.</p> |
