| 摘要 |
Provided is a secondary battery, and more particularly, is a jelly roll of a battery cell for a secondary battery having an electrode plate and a separator as basic components. The jelly roll of a battery cell for a secondary battery of the present invention enables the manufacture of a battery cell having improved insulation resistance, thereby improving the reliability of the battery cell, and the electrolyte wetting of the jelly roll, which may be deteriorated due to the contractile tube, can be facilitated. |
