U.S. patent application 20180126857 (applicant: Capacitor Sciences Inc., Menlo Park, Calif.):
"The invention relates to a capacitor based energy storage module and an electric vehicle using the same. For providing an electric vehicle which can meet the requirements of long distance running and rapid acceleration at the same time, the electric vehicle of present invention comprising: An electric control unit controlling all operations of the electric vehicle; An energy storage unit having one or more energy devices based on meta-capacitor which provides needed electric energy of the electric vehicle; A DC-DC converter receiving control signal from said electric control unit to convert the energy from said energy storage unit then provide to motor; A motor converting the electric energy into mechanical energy to drive the wheels; Wheels are driven by the motor to make the electric vehicle run. ... [The] capacitive energy storage module may include a cooling mechanism in thermal contact with the capacitive energy storage device and/or the DC-voltage converter. Such a cooling mechanism may be, e.g., a passive cooling mechanism, an active cooling system using air, water, ethylene glycol as a coolant; phase-change material, or any combination thereof."