Apparatus and method for manufacturing secondary battery and secondary battery manufactured thereby

Abstract

Disclosed are a secondary battery manufacturing apparatus and method capable of preventing wrinkles and folding of a substrate tab during manufacture of an electrode plate and preventing rupture of the electrode plate during travel or winding of the electrode plate and a secondary battery manufactured thereby. The manufacturing apparatus includes an unwinding unit unwinding an electrode plate wound on a first roller, the electrode plate including a coated portion in which an active material is coated on a substrate portion and an uncoated portion in which an active material is not coated on the substrate portion, a fold prevention portion forming unit forming a fold prevention portion on the uncoated portion of the electrode plate, a notching unit notching the uncoated portion including the fold prevention portion to form a substrate tab, and a winding unit winding the electrode plate including the substrate tab on a second roller.

Dependencies are inferred from the claim text.