▎ 摘　　要

NOVELTY - Supercapacitor with a negative Poisson's ratio characteristic imitating oak leaf structure (6) includes flexible electrodes on the upper and lower layers and an intermediate dielectric layer (4). The flexible electrode includes a current collector layer (2), an active material layer (3) and a flexible base layer (1). The current collector layer is printed on the flexible base layer by screen printing to collect the current generated by the active material layer. The active material layer is printed on the current collector layer by screen printing to absorb moving ions. The current collector layer and the active material layer are negative Poisson's ratio structures. The negative Poisson's ratio structure is modeled on the shape of oak leaves, and consists of four oak leaf units and four embedded units (5). USE - Supercapacitor with a negative Poisson's ratio characteristic imitating oak leaf structure. ADVANTAGE - The supercapacitor with a negative Poisson's ratio characteristic imitating oak leaf structure has oak leaf unit provides a large amount of tensile deformation for the supercapacitor, and the negative Poisson's ratio structure provides a strong tensile characteristic for the supercapacitor, which reduces the tensile stress and prevents the electrode layer from falling off and cracks, and electrode structure of the present invention is novel and has a very high tensile deformation capacity, and under various deformations such as tension, compression, bending, and twisting, the stress on the electrode is relatively small, so that the present invention has strong mechanical properties and cycle stability. DESCRIPTION OF DRAWING(S) - The drawing shows the structural composition diagram of supercapacitor. 1Flexible base layer 2Current collector layer 3Active material layer 4Intermediate dielectric layer 6Oak leaf structure