A wearable noncontact free‐rotating hybrid nanogenerator for self‐powered electronics. Issue 6 (10th March 2020)

• Record Type: Journal Article
• Authors: Jiang, Dongjie; Ouyang, Han; Shi, Bojing; Zou, Yang; Tan, Puchuan; Qu, Xuecheng; Chao, Shengyu; Xi, Yuan; Zhao, Chaochao; Fan, Yubo; Li, Zhou
• Is Part Of: InfoMat. Volume 2:Issue 6(2020)
• Page Start: 1191
• Page End: 1200
• Publication Date: 2020-03-10
• Subjects: electromagnetic generator -- hybrid nanogenerator -- self‐powered electronics -- triboelectric nanogenerator -- wearable electronics; Materials -- Periodicals; Information technology -- Periodicals; Smart materials -- Periodicals; 620.11
• DOI: 10.1002/inf2.12103
• Languages: English
• ISSNs: 2567-3165

Abstract

Abstract: Self‐powerability is a new trend in the development of portable devices. Harvesting biomechanical energy to power personal information electronics is of great significance. In this work, we report a wearable noncontact free‐rotating hybrid nanogenerator (WRG), which is constituted by a triboelectric nanogenerator and an electromagnetic generator. A continuous output over 2 seconds can be achieved during one instantaneous incentive by external force, which is improved by two orders of magnitude compared to other wearable nanogenerators due to its unique mechanical energy storage design. The WRG can be integrated into shoes to generate an output energy of 14.68 mJ in each stepping, which meets the power requirements of most personal information electronics. The wireless sensor, GPS, and smartphone can be powered by the WRG continuously. The WRG is expected to be applied in self‐powered information electronics extensively in the future. Abstract : This work reports a wearable noncontact free‐rotating hybrid nanogenerator (WRG), as a mobile power source based on mechanical energy storage technology. The WRG can convert the noncontinuous gravitational potential energy of humans into the continuous rotational kinetic energy of the rotor. An instantaneous incentive by external force can generate a continuous electrical output over 2 seconds. The WRG could be integrated into commercial shoes and provide a stable and efficient power source for information electronics.