| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a battery pack which is reduced in thickness and size and which reduces a voltage drop generating at connecting portions of unit sells when plural unit cells are connected in parallel to make parallel blocks that are further connected in series, and to provide a manufacturing method of the same. <P>SOLUTION: In a battery pack 8, respective parallel blocks 9 are connected to a protection circuit through lead plates 2. A voltage drop at the lead plates 2 can be suppressed by welding the parallel blocks 9 to both sides of the lead plates 2 to shorten the length of the lead plates 2 without folding the lead plates 2 into a U shape. As the lead plates 2 are not folded into a U shape, assembling precision of the battery pack is improved and miniaturization and packaging of the battery pack are facilitated. <P>COPYRIGHT: (C)2012,JPO&INPIT |
