| 摘要 |
<p>Disclosed in the present invention is a secondary battery. The secondary battery includes a can including an opening on one side thereof, and an electrode assembly stored in the can through the opening, wherein the can has a third surface forming the bottom of the can, and formed in a curved shape; and a transformation induction unit formed on the third surface, and reducing force needed for transformation, when forming the third surface to be curved.</p> |
