▎ 摘　　要

NOVELTY - The secondary battery has a positive electrode (20) and a negative electrode (30). The positive electrode has a positive electrode current collector (22). The negative electrode has a negative electrode current collector (32). The positive or negative electrode collector is formed from a rubber material. The positive and negative active material layers (23,33) consisting of electrode active material and styrene-butadiene rubber are provided respectively on the surface of the positive electrode current collector and negative electrode current collector. USE - Secondary battery for electronic device. Uses include but are not limited to smart phone, notebook computer, medical device, TV, unmanned aerial vehicle e.g. drone, cleaning robot, wearable spectacle type device for displaying contents of virtual reality (VR), augmented reality (AR), substitution reality (SR) or mixed reality (MR), wristwatch-type device, head mounted device, and plug-in hybrid car. ADVANTAGE - The deterioration of electrodes in a flexible secondary battery is suppressed by preventing the deviation of the positions of ends of the electrodes and reducing the stress applied to the electrodes in the curved state of the battery. The ratio of the active material in the active material layer is increased in order to enhance the discharge capacity of the battery. The carbon-containing compound such as graphene is utilized to increase the density of electrode and form an excellent conductive path. The deterioration of separator is suppressed to improve the reliability of the battery. The heat resistance is enhanced to improve the safety of battery. The battery is manufactured efficiently by connecting the current collectors and the electrode leads at the same time. DESCRIPTION OF DRAWING(S) - The drawings show a cross-sectional view of the positive and negative electrodes, and an enlarged view of a portion of the negative electrode. 20Positive electrode 22Positive electrode current collector 23Positive active material layer 30Negative electrode 32Negative electrode current collector 33Negative active material layer