| 摘要 |
In a battery pack, first through nth secondary batteries, where n is an integer which is 2 or more, are sequentially stacked from the pack output terminals. (n+2)th and (n+1)th secondary batteries are disposed from the positions of pack output terminals in a row in a direction perpendicular to a direction in which the first through nth secondary batteries are arranged. First polarity terminals of the (n+2)th and (n+1)th secondary batteries are connected to each other. A pack output terminal having a second polarity opposite to the first polarity and the second polarity terminals of the nth, the (n+1)th, and the (n+2)th are connected in common by a conductive body. In the above battery pack, the second polarity terminals of the (n+2)th and (n+1)th secondary batteries are connected to each other by a first conductive body. A second conductive body is connected to the pack output terminals having the second polarity are connected at a first branch point of the first conductive body. The first branch point of the first conductive body is set to minimize a difference between resistance values of current paths of the (n+2)th and (n+1)th secondary batteries between the pack output terminals having the first and second polarities.
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