Accordion-Inspired Parallelly Assembled Triboelectric Nanogenerator: For Efficient Biomechanical Energy Harvesting and Music Responding

Harvesting biomechanical energy from human motion presents a promising supplement to electrochemical power sources such as batteries for portable electronic devices. In this paper, an array parallelly assembled triboelectric nanogenerator (PS-TENG) is proposed as an inspiration from the structure of accordion. The as-designed TENG generates sustainable electrical power through hand motion with significantly enhanced electrification efficiency and reliability. The output of the parallelly assembled TENGs (PS-TENGs), which is positively correlated with the frequency of excitation and reciprocating distance, is 2.8 times higher than that of TENG with series electrodes(S-TENG) under the same operating conditions. In addition, based on PS-TENG can be used as self-powered sensors for smart home applications. Such a design promotes the application of TENG in powering portable electronic devices.