BATTERY PACK

摘要

A battery pack which includes a plurality of contact portions in a terminal accommodating portion provided in each of cell receiving portions of a plurality of battery cells, so that one selected from the plurality of contact portions can be electrically connected to electrode terminals of the battery cells even if the plurality of battery cells have different widths of wide walls. In addition, since the battery pack includes a series/parallel switch provided outside an external pack, a connection method of a plurality of battery cells provided inside the external pack can be switched to series/parallel connection. Further, since the battery pack includes a capacity display unit provided outside an external pack, capacity levels of a plurality of battery cells provided inside the external pack can be identified.

主权项

1. A battery pack comprising:
a plurality of battery cells each having an electrode terminal portion exposed to one surface; and an external pack accommodating the plurality of battery cells and including a plurality of terminal accommodating portions at the interior of a first surface corresponding to the one surface of each of the plurality of battery cells to be electrically connected to the electrode terminal portions of the plurality of battery cells, respectively, wherein the plurality of terminal accommodating portions include a first terminal accommodating portion electrically connected to a first battery cell among the plurality of battery cells, and the first terminal accommodating portion includes a first terminal contact portion making contact with an electrode terminal portion of the first battery cell and one or more first dummy contact portions making contact with one surface of the first battery cell.