▎ 摘　　要

NOVELTY - The collector has a macroscopic graphene film that is uniformly provided with multiple elongated through holes (2). The macroscopic graphene film and a flexible piezoelectric material (3) are staggered and stacked. The elongated through hole comprises a horizontal through hole and a vertical through hole. The elongated through hole is provided with a horizontal through hole and a vertical through hole. The horizontal through hole is located on a same straight line. A gap is formed between the adjacent through holes. The vertical through hole is provided with multiple columns. The vertical through holes are located on the same straight line. USE - Flexible piezoelectric energy collector based on macroscopic graphene film negative Poisson ratio structure. ADVANTAGE - The flexible piezoelectric energy collector based on macroscopic graphene film negative Poisson ratio structure adjusts apparent Poisson ratio and Young modulus in wide range, and improves electrical output performance. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of the flexible piezoelectric energy collector based on macroscopic graphene film negative Poisson ratio structure. Macroscopic graphene film (1) Elongated through hole (2) Flexible piezoelectric material (3)