| 摘要 |
There is provided a device with which an optional voltage and an optional capacity may be obtained in one device. A device wherein a plurality of electrode groups each comprising a positive electrode sheet having an electrode tab, a negative electrode sheet having an electrode tab, and a separator disposed so as to insulate the positive electrode sheet from the negative electrode sheet, are included in a single vessel. The device being used as a storage device, and the device being used as a nonaqueous electrolytic solution secondary battery.
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