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US 12,679,976 B2Granted
Triboelectric nanogenerator
AssigneePurdue Research Foundation
InventorsWenzhuo Wu, Ruoxing Wang
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Abstract
The present disclosure relates to a novel triboelectric nanogenerator comprising a novel polyvinyl alcohol (PVA)-based biocompatible polymer. The novel polyvinyl alcohol-based biocompatible polymer comprises a blending product of a mixture comprising a polyvinyl alcohol, a gelatin, and an optional salt. The polyvinyl alcohol-based biocompatible polymer is a substantially transparent film.
Claims12
A triboelectric nanogenerator comprising:
- a polyvinyl alcohol (PVA)-based biocompatible polymer, wherein the polyvinyl alcohol-based biocompatible polymer comprises a blending product of a mixture comprising a polyvinyl alcohol, a gelatin, and a salt, wherein the gelatin is provided in an amount effective to disrupt PVA crystalline domains;
- a friction layer including a material more negative in a triboelectric series than the PVA-based biocompatible polymer;
- and
- metal electrodes coupling the polyvinyl alcohol (PVA)-based biocompatible polymer and the friction layer, and when the polyvinyl alcohol (PVA)-based biocompatible polymer is brought into contact with the friction layer, the difference from triboelectric polarities on the polyvinyl alcohol (PVA)-based biocompatible polymer and the friction layer leads to electrons flowing between the polyvinyl alcohol (PVA)-based biocompatible polymer and the friction layer;
- wherein a concentration of the gelatin and the salt are provided to tune both interfacial polarization and ionic polarization so as to increase a dielectric constant of the PVA blend relative to pure PVA.
2 more elements
Dependencies are inferred from the claim text.