| 摘要 |
PROBLEM TO BE SOLVED: To provide a winding type electrode battery which can aim at improvement in space efficiency of the battery. SOLUTION: The wound type electrode battery has a 1st and a 2nd electrode sheets, which have a collector and an electrode active-material layer formed in both sides of the collector, respectively, and a wound type electrode body which is formed by winding spirally a separator prepared between the 1st and 2nd electrode sheets. The 1st and 2nd electrode sheets have axial direction end parts that do not mutually counterpose, which are projected to the winding axis direction mutually, and counters mutually along the winding axis direction. The separator is fixed to both the axes direction end parts arranged in the both sides of the winding axis direction of the electrode active-material layer of the 2nd electrode sheet, having area smaller than that of the 1st electrode active-material layer. |
