Journal
ADVANCED ENERGY MATERIALS
Volume 8, Issue 14, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/aenm.201703086
Keywords
freestanding triboelectric-layers; mechanical waves; triboelectric nanogenerators; wireless electric energy transmission
Categories
Funding
- NSFC [51572040, 51402112]
- Chongqing University Postgraduates' Innovation Project [CYB17044]
- National High Technology Research and Development Program of China [2015AA034801]
- NSFCQ [cstc2015jcyjA20020]
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Wireless electric energy transmission is an important energy supply technology. However, most wireless energy supply based on electromagnetic induction cannot be used for energy transmission through a metal chamber. Herein, a novel idea for wireless electric energy transmission through various isolated solid media based on triboelectric nanogenerator (TENG) is presented. The electric energy is first transformed into mechanical vibration energy in mechanical wave that can propagate well in solid medium, and then the vibration energy is harvested by a TENG. By employing the spring steel sheets and freestanding triboelectric-layer structure, the vibration TENG as an energy conversion unit has the advantages of high efficiency and facilitation, boosting this wireless energy transmission technology to be an alternative way of delivering electric energy through metal medium. The working principle and output performance have been systematically studied. A commercial capacitor can be charged from 0 to 10 V in 33 and 86 s isolated by an acrylic plate and a copper plate in thickness of 3 mm, respectively. The wireless electric transmission technology is also applied to deliver electric energy into a vacuum glove box and across glass wall successfully. This novel technology has great potential applications in implantable microelectronic devices, encrypted wireless communication, and even nondestructive testing.
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