Electricity supply device for arranging on board of car for supplying electricity to electric traction motor, has power- and energy batteries placed in housing whose interface is provided with connector for supplying power for motor

摘要

The device (14) has a power battery (20) exhibiting lower energy density lower than that of an energy battery (18) and higher power density higher than that of the energy battery. The power battery and the energy battery are placed in a common housing (22), which comprises a connection interface (24) allowing a mechanical connection with a vehicle. The connection interface comprises a connector (30) for supplying high voltage electrical power for an electric traction motor. The housing comprises a slot (42) for retaining the energy battery in a removable manner. The power battery and the energy battery are formed as a lithium-ion-battery.