Journal
ACS NANO
Volume 10, Issue 11, Pages 10580-10588Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsnano.6b06621
Keywords
triboelectric nanogenerators; supercapacitors; wearable electronics; self-charging power package; kirigami
Categories
Funding
- China Scholarship Council (CSC)
- Hightower Chair foundation
- thousands talents program for pioneer researcher and his innovation team, China, National Natural Science Foundation of China [51572040, 51432005, 5151101243, 51561145021]
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Recently, 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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