Abstract
The triboelectric generator (TEG) is a strong candidate for low-power sensors utilized in the Internet of Things (IoT) technology. Within IoT technologies, advanced driver assistance system (ADAS) technology is included within autonomous driving technology. Development of an energy source for sensors necessary for operation becomes an important issue, since a lot of sensors are embedded in vehicles and require more electrical energy. Although saving energy and enhancing energy efficiency is one of the most important issues, the application approach to harvesting wasted energy without compromising the reliability of existing mechanical systems is still in very early stages. Here, we report of a new type of TEG, a suspension-type free-standing mode TEG (STEG) inspired from a shock absorber in a suspension system. We discovered that the optimum width of electrode output voltage was 131.9 V and current was 0.060 µA/cm2 in root mean square (RMS) value while the optimized output power was 4.90 μW/cm2 at 66 MΩ. In addition, output power was found to be proportional to frictional force due to the contact area between two frictional surfaces. It was found that the STEG was made of perfluoroalkoxy film and showed good mechanical durability with no degradation of output performance after sliding 11,000 times. In addition, we successfully demonstrated charging a capacitor of 330 μF in 6 min.
Highlights
Internet of Things (IoT) technology is becoming more influential within our lives recently
Current automotive energy harvesting technologies based on traditional electro-magnetic induction are not efficient for powering sensors because of their heavy weight when compared to their output performance, and the absence of an efficient energy source for the sensor network system, leads to a reduction in energy efficiency of the vehicle, and disturbs the practical application of advanced driver assistance system (ADAS) technology in a vehicle [3,4]
The STEG was designed based on the structure of a free-standing mode triboelectric generator (TEG), in which the copper electrodes on the inner cylinder and outer cylinder corresponded to alternative electrodes and moving objects, respectively
Summary
Internet of Things (IoT) technology is becoming more influential within our lives recently. Triboelectric generators (TEGs) that convert mechanical energy to electrical energy utilize a combination of triboelectrification and electrostatic induction, which is one of the most promising candidates as an energy source of low-power sensors because of its high output performance, light weight, and low cost [5,6,7,8]. Based on these attributes, there have been numerous attempts to harvest mechanical energy which is abandoned in vehicle such as energy from wind, vibration, rotation and etc through applying TEGs [9,10,11]. We obtained the highest output performance of STEG at 4.90 μW/cm by controlling the frictional force with different radii of the inner cylinder
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
