A Spring Structure Triboelectric Nanogenerator for Human Gait Monitoring System

In recent years, many researchers have developed the triboelectric nanogenerators (TENGs) technology to harvest mechanical energy. Here, we proposed a spring-like supporting structure triboelectric nanogenerator (S-TENG) to gain mechanical energy and translate them into electrical energy. From the results, the open-circuit voltage (V-oc) of S-TENG can arrive at 390 V, and the short-circuit current (I-sc) of S-TENG can reach 13.13 mu A. Also, the transferred charge of S-TENG can get to 130 nC, and as for the maximum output power of S-TENG with the size of 2 cm x 3 cm, it can reach 1.44 mW. Besides, the electrical output signal of S-TENG can reflect the human motion state such as walking, running and jumping. This design not only greatly promoted the TENGs in mechanical energy harvesting but also the development of self-powered human motion sensor.

Automated summary

In recent years, researchers have developed the triboelectric nanogenerators (TENGs) technology to harvest mechanical energy. This study proposed a spring-like supporting structure triboelectric nanogenerator (S-TENG) to convert mechanical energy into electrical energy, with an open-circuit voltage of 390 V and a short-circuit current of 13.13 µA. The S-TENG demonstrated the ability to reflect human motion states such as walking, running, and jumping.