| 摘要 |
PURPOSE: A secondary battery is provided to simplify equipment required for a manufacturing process of an electrode assembly by accurately laminating a positive electrode plate and a negative electrode plate and to shorten the time to confirm the arrangement. CONSTITUTION: A secondary battery includes: at least one positive electrode plate(21) folded based on a first line(215); and at least one negative electrode plate(22) which is folded based on a second line(225) and laminated in order to face the positive electrode plate in the state that the second line corresponds to the first line. The positive and negative electrode plates include an electrode current collector(211) which is a metal plate, and an electrode active material layer(212,222) formed on the surface of the electrode current collector. |
