| 摘要 |
The present invention relates to a voltage variable type battery module. According to the present invention, the voltage variable type battery module includes: a first battery cell; a second battery cell; a third battery cell; a fourth battery cell; a first switch unit closing or opening a positive electrode of the first battery cell and a positive electrode of the second battery cell; a second switch unit closing or opening a negative electrode of the first battery cell and a negative electrode of the second battery cell; a third switch unit closing or opening the negative electrode of the first battery cell and the positive electrode of the second battery cell; a fourth switch unit closing or opening a positive electrode of the third battery cell and a positive electrode of the fourth battery cell; a fifth switch unit closing or opening a negative electrode of the third battery cell and a negative electrode of the fourth battery cell; a sixth switch unit closing or opening the negative electrode of the third battery cell and the positive electrode of the fourth battery cell; a positive electrode output unit connected between the first battery cell and the first switch unit; a negative electrode output unit connected between the fourth battery cell and the fifth switch unit; and a control unit controlling the first, second, third, fourth, fifth, or sixth switch unit, thereby maximizing driving motor efficiency. |
