| 摘要 |
<p>A protection tape for sealing a sealing portion of a flexible outer casing of a secondary battery includes a base material having a predetermined width and a length larger than the width. An adhesive layer is formed on the base material. A bending portion is formed along a length direction of the base material on one surface of the base material. The bending portion is bent at the joint portion. Multiple knife marks or grooves are formed at the bending portion.</p> |
