PURPOSE: To obtain a high capacity of electrode, excellent charge and discharge cycle property and flexibility by forming carrier composed of specific carboneous material and fiber-like organic high polymer binder to carry alkaline metal as active material thereon.

CONSTITUTION: Alkaline metal is carried as active material on carrier composed of a mixture of carboneous material and fiber-like organic high polymer binder. That is, the carrier composed of the carboneous material, satisfied by the ratio of hydrogen atoms to carbon atoms being less than 0.15, face-to-face spaces being 3.37 or wider by a X-ray wide-angle diffracting method and the sizes of crystallites in a (c)-axial direction being 220 or smaller, and the fiber-like organic high polymer binder is formed to carry alkaline metal as active material thereon. It is thus possible to obtain a flexible electrode for a secondary battery with a high capacity and excellent charge and discharge cycle property.