| 摘要 |
<p>A battery pack according to the present invention includes: a battery cell which includes an electrode assembly, an electrode lead connected to the electrode assembly, and a cell case for storing the electrode assembly for the electrode lead to be withdrawn to the outside; a circuit board which is placed in the direction in which the electrode lead is withdrawn and is electrically connected to the electrode lead; and a positive temperature element which is electrically connected to the circuit board, is placed between the battery cell and the circuit board, and is attached to the battery cell through elastic pressurization. According to the present invention, in case the temperature of a battery cell increases due to an abnormal phenomenon, the positive temperature element operates quickly to cut the current so that safety in using a secondary cell can be guaranteed.</p> |
