| 摘要 |
PURPOSE:To make a lead plate to be securely connected to the end surface of a spirally rolled electrode plate by constituting the peripheral part of the electrode plate, which works as a lead-connecting part, of the compressed part of a compressed spongy metallic base plate and a flexible resin which is pressed upon said compressed part. CONSTITUTION:The symbol 13 represents a long spongy nickel base plate. After parts of the plate 13 which extend perpendicularly to the longitudinal direction of the plate 13 are compressed so as to form grooves 14, thin resin plates 15 are applied inside the grooves 14, and molten by pressure heating so as to pack most part of the resin into the compressed parts 16 of the plate 13 which form the bottoms of the grooves 14. Next, after packing of an active material and pressure molding process of the packed body are finished, the plate 13 is cut at the centers of the grooves 14 as well as at the centers between the grooves 14. In a positive electrode prepared in such a manner as above, each compressed part 16 of the plate 13 works as a terminal part 2a, which is welded to a lead plate. Therefore, the end surface of the terminal part 2a is a cut surface, and a nickel bone which constitutes the spongy base plate 13 is exposed at the cut surface. |
