Structural Design And Application Of Triboelectric Nanogenerator Based On Independent Layer Mode

With the process of society,the shortage of energy hinders the development of the world economy,and all countries are committed to the development of new energy.Triboelectric nanogenerators?TENG?can be used to collect water wave energy,vibration energy,sensors and other fields.There are a lot of energy of moving objects in life,such as walking,moving cars,etc.In order to collect the above low frequency energy effectively and,In this paper,a triboelectric nanogenerator based on freestanding layer mode?F-TENG?which can collect the moving energy is studied and on the basis research of F-TENG,a six-sided contact triboelectric nanogenerator?SC-TENG?was designed.The main contents and innovative results are as follows:?1?A triboelectric nanogenerator based on freestanding layer mode?F-TENG?was studied.The working principle and the numerical relationship between Q₍?8,8??6?,(1₍?8,8??6?and₀ are analyzed;the distribution and variation rules of the electric potential and the charge of the F-TENG,and the relationship with the displacement of freestanding layer were compared and analyzed.?2?The effects of reciprocating frequency,cross-electrodes spacing,number of cross-electrodes and number of freestanding layers on the output performance were analyzed by experiments.Increasing the frequency,the number of independent layers and decreasing the spacing of cross-electrodes are beneficial to improve the output performance.Introducing more pairs of cross-electrodes is beneficial to increase current density.?3?A six-sided contact triboelectric nanogenerator?SC-TENG?was designed,which contains four triboelectric nanogenerators based on freestanding layer mode?F-TENG?and two triboelectric nanogenerators based on single electrode mode?S-TENG?.The output performance of the F-TENG with different plane numbers is studied.When the number of plane increases from 1 to 4 faces,the output voltage,output current,and transferred charge almost show a linear growth trend,achieving a good superposition of performance.At the same time,the output performance of the S-TENG was studied.At a frequency of 2 Hz,the maximum output power reaches 0.055mW,and the optimal matching resistance is 42 MW.?4?The structure of the SC-TENG has been improved,and the original S-TENG has been improved to a triboelectric nanogenerator based on helically folded structure?HF-TENG?,which realizes the conversion of 2D devices to 3D devices.This article discusses the working principle and preparation method of HF-TENG.At the same time,as the frequency and distance of separation increase,the output performance of HF-TENG has been significantly improved.And the output performance of the improved SC-TENG has been tested.For one HF-TENG,the maximum output power reaches0.67 mW,and the optimal load resistance is 30 MW.For four F-TENG,the maximum output power reaches 0.48 mW,and the optimal load resistance is 32 MW.At the same time,some applications of TENG were studied,such as SC-TENG collecting water wave energy which providing electrical energy for some LED lights,F-TENG collecting energy from moving objects and powering the warning signs,etc.