| 摘要 |
PROBLEM TO BE SOLVED: To manufacture a laminate type battery having less contamination of foreign matter and large battery capacity per unit weight.SOLUTION: A positive electrode 1 in which a positive electrode active material is intermittently coated on a single surface and which is wound in a roll state, a negative electrode 2 in which a negative electrode active material is intermittently coated on the single surface and which is wound in the roll state and a separator 3 which is wound in the roll state are stacked in a zigzag shape to prepare a cell element 4. Moreover, both ends of a folded line are in a state where the active material is not coated, and a positive electrode current collector 5 and a negative electrode current collector 6 are welded by a positive electrode lead 7 and a negative electrode lead 8, respectively. |
