Method and apparatus for manufacturing expanded mesh sheet and battery using this expanded mesh sheet

摘要

Fine slits are formed in the metal sheet (B) at the slit forming section (11) by plate cutters (15), excluding portions in the center and on both sides in a widthwise direction of the metal sheet (B), after which the areas where the slits have been formed are drawn out at the expanding section (12) thereby opening the slits and obtaining a mesh sheet (C) which has solid portions in the central portion and on both sides. This mesh sheet (C) is flattened at the rolling section (14) to obtain an expanded mesh sheet (D). An electrode sheet is prepared by applying an active material onto the portions of the expanded mesh sheet (D) where the mesh has been formed, and collectors (1a, 2a) for a battery are cut out from this electrode sheet such that lead connecting portions (1c, 2c) thereof are located at the solid portion of the mesh sheet where there is no openings, with which a positive and negative electrode plates (1, 2) for the battery are manufactured.