NOVELTY - A battery and ultracapacitor device (12) comprises a positive electrode (120), a first negative electrode (122) having a first composition and a first internal resistance, a second negative electrode having a second composition and a second internal resistance, a first separator (124) disposed between positive electrode and first and second negative electrodes, and a controller communicating with positive electrode and second negative electrode.    USE - As a battery and ultracapacitor device for powering electrical motor used in vehicle (claimed).    ADVANTAGE - The device provides excellent power and sufficient energy for powering hybrid electric vehicles (HEVs); provides greater than or equal to 25% of relatively high rate, short pulse time period, and current pulses; allows for relatively higher power capability; allows for smaller size and reduced weight of the device while providing the same power; and reduces the number of control devices that add weight and occupy space on a vehicle, thereby reduces the cost of battery and ultracapacitor device.    DETAILED DESCRIPTION - A battery and ultracapacitor device (12) either comprises a positive electrode (120), a first negative electrode (122) having a first composition and a first internal resistance, the first negative electrode communicating with the positive electrode, a second negative electrode having a second composition and a second internal resistance, the second negative electrode being adjacent the first negative electrode and communicating with the positive electrode and the first negative electrode, a first separator (124) disposed between the positive electrode and the first and second negative electrodes, and a controller communicating with the positive electrode, and the second negative electrode, where the first negative electrode comprises a secondary battery negative electrode and the second negative electrode comprises an ultracapacitor negative electrode; or a secondary battery cell including a positive electrode and a first negative electrode comprising a first segment, and an electrochemical double-layer capacitor having the positive electrode and a second negative electrode containing a second segment, the first negative electrode being adjacent to the second negative electrode. INDEPENDENT CLAIMS are included for the following:    (1) a vehicle comprising a frame, and a controller connected directly or indirectly to the frame and connected to connected battery and ultracapacitor cells; and    (2) powering an electrical motor for use in a vehicle having an electrical charging device and using a battery and ultracapacitor device comprising a nickel oxyhydroxide positive electrode, a combined negative electrode having a metal hydride negative electrode portion and an active carbon negative electrode portion communicating with the positive electrode, the positive electrode and the active carbon negative electrode portion comprising an ultracapacitor portion of the device, the positive electrode and the metal hydride negative electrode portion comprising a battery portion of the device, and a separator disposed between the positive electrode and the combined negative electrode, the method involving controlling a current from the negative electrode using a single controller for the battery and ultracapacitor device when electrically discharging the device, and powering the electrical motor of the vehicle using the electron flow.    DESCRIPTION OF DRAWING(S) - The figure shows a prismatic configuration of a battery and ultracapacitor cell.    Battery and ultracapacitor device (12)    Positive electrode (120)    Negative electrode (122)    Separator (124)    Negative terminal (130)