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All-in-One Shape-Adaptive Self-Charging Power Package for Wearable Electronics
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posted on 2016-11-07, 00:00 authored by Hengyu Guo, Min-Hsin Yeh, Ying-Chih Lai, Yunlong Zi, Changsheng Wu, Zhen Wen, Chenguo Hu, Zhong Lin WangRecently, a self-charging
power unit consisting of an energy harvesting
device and an energy storage device set the foundation for building
a self-powered wearable system. However, the flexibility of the power
unit working under extremely complex deformations (e.g., stretching,
twisting, and bending) becomes a key issue. Here, we present a prototype
of an all-in-one shape-adaptive self-charging power unit that can
be used for scavenging random body motion energy under complex mechanical
deformations and then directly storing it in a supercapacitor unit
to build up a self-powered system for wearable electronics. A kirigami
paper based supercapacitor (KP-SC) was designed to work as the flexible
energy storage device (stretchability up to 215%). An ultrastretchable
and shape-adaptive silicone rubber triboelectric nanogenerator (SR-TENG)
was utilized as the flexible energy harvesting device. By combining
them with a rectifier, a stretchable, twistable, and bendable, self-charging
power package was achieved for sustainably driving wearable electronics.
This work provides a potential platform for the flexible self-powered
systems.
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SR-TENGall-in-one shape-adaptive self-charging power unitdeformationbody motion energyenergy harvesting deviceshape-adaptive silicone rubber triboelectric nanogeneratorenergy storage devicesupercapacitorself-powered wearable systemKP-SCwearable electronicsself-charging power packageself-charging power unitAll-in-One Shape-Adaptive Self-Charging Power Package
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