ZnSnO 3– Ecoflex/LDH–PU Based Triboelectric Nanogenerator for Motion‐Activated Battery‐Free Smart Street Lighting

surface charge density, maintaining stable performance over 20,000 cycles. The device efficiently converts biomechanical motion into electrical energy, as demonstrated in both wearable flexion sensing and a motion-triggered, battery-free street lighting system that directly powers LEDs. This scalable, flexible TENG platform offers high output, long-term durability, and practical applicability, highlighting its potential for sustainable smart city illumination, sensing networks, and self-powered electronics.