| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a battery pack. <P>SOLUTION: The battery pack comprises a first unit cell comprising a first electrode tab extending in a first direction, a second unit cell comprising a second electrode tab joined to the first electrode tab with an overlap in a first joining region, and a lead member joined to the first electrode tab with an overlap in a second joining region, and the first and second joining regions are formed at different positions. Thus the bond strength between the internal unit cells is enhanced and the electrical coupling becomes stable. <P>COPYRIGHT: (C)2013,JPO&INPIT |
