Well-defined design and fabrication of piezoelectric energy generators are required for surrounding environment energy harvest, capable of providing sustainable, renewable energy for future life. Herein, we present a 3D piezoelectric spring in a sandwich structure mainly constituted of a flexible Al electrode, electrospun PVDF film, and a Pt electrode, where the inside commercial springs act as a 3D structural foundation. The resulting 3D piezoelectric spring exhibits its potential as a multifunctional sensor to detect strain, speed, frequency, and resistance. It is further bridged with LED/capacitor by rectifier for illumination and charging, enabling highly efficient environment energy harvest and storage. The parallel connection of three piezoelectric springs exhibits an output voltage of 7.2 V and output current of 300 nA for 21 MΩ resistance, which are three times of single piezoelectric spring, demonstrating the possibility of scale‐up. This work provides an effective strategy for 3D piezoelectric spring fabrication, and new insights for spring-based piezoelectric energy generators, devoting to energy harvesting technology.

周围环境能量收集需要压电能量发生器的明确设计和制造，能够为未来生活提供可持续的可再生能源。在此，我们提出了一种夹层结构的 3D 压电弹簧，主要由柔性铝电极、电纺 PVDF 膜和 Pt 电极组成，其中内部商用弹簧作为 3D 结构基础。由此产生的 3D 压电弹簧显示出其作为多功能传感器的潜力，可以检测应变、速度、频率和电阻。它通过整流器进一步与 LED/电容器桥接以进行照明和充电，从而实现高效的环境能量收集和存储。三个压电弹簧的并联输出电压为 7.2 V，输出电流为 300 nA，电阻为 21 MΩ，是单个压电弹簧的三倍，证明了放大的可能性。这项工作为 3D 压电弹簧制造提供了一种有效的策略，并为基于弹簧的压电能量发生器提供了新的见解，致力于能量收集技术。