抄録
Motors are used in all devices and equipment that move by electricity. Most of the electrical energy that is produced when a motor starts and stops (regenerative energy) goes to waste as heat. Energy is stored when stopping stored electricity is used when accelerating. To save electricity of a motor, rapid charge and discharge energy storage device in a second is necessary. We developed the rapid type electric double layer capacitor (EDLC) of 0.1ΩF class. The time constant (ΩF) of the rapid type EDLC was far lower than conventional one because it has thin carbon layers (ca.10μm) on the electrodes, and because it has low resistance especially between the current collector (aluminum foil) and the electrode. An elliptical spiral type capacitor (60 cm2 class) was developed as a scale-up cell from a small card size cell (9 cm2 class). Temperature distribution in plane of an elliptical spiral-type (with electric current terminals on both sides) was significantly improved compared with a conventional stacking structure type (with electric current terminals on one side) of the rapid type card (60 cm2 class) cells.
