▎ 摘　　要

NOVELTY - Flexible electrode substrate comprises flexible substrate and a patterned porous electrode formed on one surface of the flexible substrate. The flexible substrate is impregnated in the pores of the patterned porous electrode. USE - Flexible electrode substrate used in energy storage device as wearable device (all claimed). ADVANTAGE - The flexible electrode substrate has high-capacity, high-efficiency battery technology in recent years, realization of the era of the 4th industrial revolution in which people, objects, and space are all interconnected using advanced information and communication technologies such as artificial intelligence. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for following: (1) an energy storage device, which comprises the flexible electrode substrate as an anode or a cathode; (2) a wearable device, which comprises energy storage device; and (3) a method for manufacturing a flexible electrode substrate, which involvees forming a patterned porous electrode on the surface of the temporary substrate, impregnating the flexible substrate into the pores of the porous electrode by attaching the flexible substrate to the temporary substrate on which the patterned porous electrode is formed, and separating the flexible substrate impregnated in the pores of the porous electrode from the temporary substrate to move the patterned porous electrode to the flexible substrate.