| 摘要 |
A battery pack includes a bare cell; a holder case positioned at the top of the bare cell; and a top case that covers the holder case. In the battery pack, a protruding portion is formed in a short side portion of the holder case, and a receiving portion is formed at a position corresponding to the protruding portion in the top case. Accordingly, the protruding portion is inserted into the receiving portion, so that it is possible to provide the battery pack stronger against external impact. |
