Energy-loss return gate via liquid dielectric polarization

Abstract

There has been much research on renewable energy-harvesting techniques. However, owing to increasing energy demands, significant energy-related issues remain to be solved. Efforts aimed at reducing the amount of energy loss in electric/electronic systems are essential for reducing energy consumption and protecting the environment. Here, we design an energy-loss return gate system that reduces energy loss from electric/electronic systems by utilizing the polarization of liquid dielectrics. The use of a liquid dielectric material in the energy-loss return gate generates electrostatic potential energy while reducing the dielectric loss of the electric/electronic system. Hence, an energy-loss return gate can make breakthrough impacts possible by amplifying energy-harvesting efficiency, lowering the power consumption of electronics, and storing the returned energy. Our study indicates the potential for enhancing energy-harvesting technologies for electric/electronics systems, while increasing the widespread development of these systems.

Ternary Electrification Layered Architecture for High-Performance Triboelectric Nanogenerators

“…As we are facing increasing challenges of diminishing fossil fuel resources and spiking global warming, numerous efforts have been devoted to searching for clean and renewable energy sources and to developing efficient technologies to utilize them. − Mechanical motion ubiquitously exists in ambient environment and people’s daily lives. Increasing research efforts have been undertaken to converting ambient mechanical energy into electricity, and various transductions have been developed. − Among these developments, triboelectric nanogenerator (TENG) has been demonstrated to be a very compelling solution, owing to its simple structure, low cost, and high efficiency. − Four basic operation modes of TENGs were systematically established, including vertical contact-separation mode, , lateral sliding mode, , single electrode mode, and free-standing mode, upon which a variety of strategies have been developed to boost the TENG’s output performance under different working conditions, including material surface nanostructure modification, − device structure design, − multilayer integrations, − surface charge density manipulation, − and many others.…”

Elastic Multifunctional Liquid–Metal Fibers for Harvesting Mechanical and Electromagnetic Energy and as Self‐Powered Sensors

“…This strategy was detailed in a previous report using a high relative‐permittivity liquid (i.e., water) to absorb energy loss from electric devices. [ 41 ] The idea here is to use the metallic property of EGaIn to convert the radiated electromagnetic energy into available electricity.…”

“…The high output voltage, low output current, and high impedance matching support the fact that the mechanism of scavenging electromagnetic energy originates from electrostatic induction. [ 41 ]…”

“…[ 2,10,17,39 ] Here, we demonstrate fibers that can collect both electricity from tribo‐charging and electromagnetic energy from electrical appliances. [ 40,41 ] The alternating electric fields from appliances polarize adjacent dielectrics (such as insulating device casings). This energy usually dissipates as dielectric loss, [ 41–44 ] but we show here that it can be harvested because of the conductivity of the liquid metal.…”

“…[ 40,41 ] The alternating electric fields from appliances polarize adjacent dielectrics (such as insulating device casings). This energy usually dissipates as dielectric loss, [ 41–44 ] but we show here that it can be harvested because of the conductivity of the liquid metal.…”