| 摘要 |
<p>Provided is a battery cell capable of efficiently performing infiltration of an electrolytic solution into an electrode assembly and exhaust of gases within the electrode assembly generated during electrical charge and making stable output power available, and a device equipped with the battery cell. The battery cell is provided with a first current collector and a second current collector for connecting an electrode assembly formed by flatly winding stacked band-shaped positive and negative electrodes and positive-electrode and negative-electrode external terminal structures, wherein the first current collector is connected to part of both of, part of one of, or the whole of one of a pair of positive-electrode layer stack sections located on one end side of the electrode assembly in the width direction thereof, the second current collector is connected to part of both of, part of one of, or the whole of one of a pair of negative-electrode layer stack sections located on the other end side of the electrode assembly in the width direction thereof and extending in the long axis direction thereof, and a connecting location between the first current collector and the positive-electrode layer stack sections and a connecting location between the second current collector and the negative-electrode layer stack sections are set so as to be asymmetrical to each other with respect to a second virtual plane passing through the center of the electrode assembly in the width direction thereof and being orthogonal to a first virtual plane.</p> |
