| 摘要 |
A storage battery has: an electricity storage unit (10) having a first battery cell group in which a plurality of first battery cells (10-1, etc.) are connected in series; an auxiliary electricity storage unit (11) having a second battery cell group in which a plurality of second battery cells (11-1, etc.) that can charge and discharge faster than the first battery cells (10-1, etc.) are connected in series; a voltage adjustment unit (14) for adjusting voltage when transferring power between the electricity storage unit (10) and the auxiliary electricity storage unit (11); a first switching unit (12) capable of separately connecting each of the first battery cells (10-1, etc.) to the voltage adjustment unit (14) and also capable of separately connecting each of the combinations of two or more first battery cells (10-1, etc.) to the voltage adjustment unit (14); and a second switching unit (13) capable of separately connecting each of the second battery cells (11-1, etc.) to the voltage adjustment unit (14) and also capable of separately connecting each of the combinations of two or more second battery cells (11-1, etc.) to the voltage adjustment unit (14). |
