What design features enable the generation of electricity from body movement?

Design features that enable electricity generation from body movement in TENGs focus on maximizing the relative motion between triboelectric materials and converting that motion into electrical energy. Key features include flexibility and stretchability to conform to the body, appropriate triboelectric material selection to maximize charge generation, optimized device architecture to enhance contact and separation or sliding, and robust encapsulation to protect the device from environmental factors and mechanical wear. Flexibility and stretchability allow the TENG to conform to the body's contours and withstand repeated deformations without failure. Selecting materials with high triboelectric potential difference maximizes charge generation during contact. Device architecture dictates how body movement is translated into relative motion between triboelectric surfaces, maximizing energy output. Encapsulation protects the device from sweat, moisture, and abrasion, ensuring long-term performance. For example, a TENG integrated into a shoe sole would need to be flexible, utilize high-performance triboelectric materials, and be designed to efficiently convert the compression and release of the sole during walking into electricity. It would also require robust encapsulation to protect it from moisture and wear.