the National Natural Science Foundation of China(Grant No.11902168);the Technology Innovation 2025 Program of Municipality of Ningbo(Grant No.2019B10222);the National Natural Science Foundation of China(Grant No.11925206).
Flexible piezoelectric energy harvesters(PEHs)have gained lots of attention in recent years,because of their potential biomechanical applications,such as powering implantable devices.Several in vivo animal experiments...