Single-electrode triboelectric nanogenerator, manufacturing method and application thereof

Abstract

A single-electrode triboelectric nanogenerator includes a negative friction layer and a contact electrode. The negative friction layer includes a polymer elastomer and graphene oxide doped in the polymer elastomer. The contact electrode is combined with the negative friction layer and is used to collect induced charges generated by triboelectricity for collection and use by an external circuit. The present invention improves the output electrical performance, stability and service life of the single-electrode triboelectric nanogenerator by adding deionized water to the polymer elastomer to form a porous structure and by doping graphene oxide.

Claims

1. A single-electrode triboelectric nanogenerator, comprising a negative friction layer and a contact electrode, wherein: The negative friction layer is prepared by a reaction solution containing a polymer elastomer and deionized water. The polymer elastomer has a porous structure and is doped with 0 wt% to 40 wt% graphene monoxide by weight of the polymer elastomer. The weight ratio of the polymer elastomer to the deionized water is 5:

1. The negative friction layer is formed by curing the reaction solution at a curing temperature of 65°C. The contact electrode is combined with the negative friction layer for electrical connection to the outside.

2. The single-electrode triboelectric nanogenerator as described in claim 1, wherein, The polymer elastomer includes one or a combination of polyolefin elastomers, polyurethane elastomers, and polydimethylsiloxane elastomers (PDMS).

3. The single-electrode triboelectric nanogenerator as described in claim 1, wherein, The average pore size of this porous structure is between 3.0 and 4.5 micrometers.

4. The single-electrode triboelectric nanogenerator as described in claim 1, further comprising a package covering the negative tribological layer and the contact electrode, wherein, The package contains a PET film.

5. The single-electrode triboelectric nanogenerator as described in claim 1, wherein, The contact electrode comprises one or a combination of a metallic material, a carbon material, a conductive polymer, and a conductive ceramic.

6. The single-electrode triboelectric nanogenerator as described in claim 5, wherein, The carbon material includes carbon black, graphite, carbon nanotubes, or graphene.

7. The single-electrode triboelectric nanogenerator as described in claim 5, wherein, The metallic material contains an aluminum foil film.

8. A method for manufacturing a single-electrode triboelectric nanogenerator, for manufacturing a single-electrode triboelectric nanogenerator as described in any one of claims 1 to 7, comprising the steps of: Step S1, preparing the negative friction layer by preparing a reaction solution, the reaction solution comprising the polymer elastomer and deionized water, wherein, The weight ratio of the polymer elastomer to the deionized water is 5:1, and the negative friction layer is formed by curing the reaction solution at a curing temperature of 65°C; Step S2, the negative friction layer is combined with the contact electrode to form the single-electrode triboelectric nanogenerator.

9. A method for manufacturing a single-electrode triboelectric nanogenerator as described in claim 8, wherein, The reaction solution in step S1 further contains graphene oxide, and the weight of graphene oxide is 10 to 40 wt% of the polymer elastomer.

10. Use of a single-electrode triboelectric nanogenerator for a human body sensor, comprising a single-electrode triboelectric nanogenerator as described in any one of claims 1 to 7.

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