| 摘要 |
A rolled electrode battery includes a rolled electrode body 14 including a band-shaped positive electrode plate 20 and a band-shaped negative electrode plate 22 formed individually with electrode active material layers, which are rolled with a band-shaped separator interposed between them and formed into a flat shape, and a case 10 which contains the electrode body and an electrolyte solution therein and on which positive and negative electrode terminals are provided. Each of the positive and negative electrode plates includes a band-shaped electrode portion formed with the electrode active material layer and contacting the separator and a side edge portion projecting from the separator to one axial side of the electrode body and not formed with an electrode active material layer. The side edge portion forms lugs arranged at intervals along the lengths of the positive and negative electrode plate. The positive and negative electrode plates are rolled in layers so that the lugs of the positive electrode plate are laminated to one another to form a positive electrode tab 16 and that the lugs of the negative electrode plate are laminated to one another to form a negative electrode tab 18. |
