▎ 摘　　要

NOVELTY - The system has a flexible piezoelectric energy harvester and piezoelectric energy harvesting circuit based on graphene assembly film (11). The flexible piezoelectric energy harvester based on a graphene assembly film includes a graphene assembly film, a piezoelectric film (12) and a flexible substrate (13). The piezoelectric energy harvesting circuit includes a rectifier circuit (21) and an energy storage element (22). USE - Flexible piezoelectric energy collecting system based on graphene assembly film for use in wearable electronic device. ADVANTAGE - The flexible piezoelectric energy collecting system uses the specific high conductivity and negative Poisson ratio effect of graphene assembly film, which is good for obtaining high energy collecting efficiency. At the same time, the system has good flexibility, and can work stably for a long time under different frequencies. DESCRIPTION OF DRAWING(S) - The drawing shows a circuit diagram of the principle structure of flexible piezoelectric energy harvesting system based on graphene assembled films. (Drawing includes non-English language text) Graphene assembly film (11) Piezoelectric film (12) Flexible substrate (13) Rectifier circuit (21) Energy storage element (22)