Triboelectric nanogenerator structure, sensing system and disinfecting system

Patent metadata

Field	Value
Publication number	US-11070148-B2
Application number	US-201916352814-A
Country	US
Kind code	B2
Filing date	Mar 13, 2019
Priority date	Nov 21, 2018
Publication date	Jul 20, 2021
Grant date	Jul 20, 2021

Abstract

A triboelectric nanogenerator structure is provided. The triboelectric nanogenerator structure is composed of an upper electrode layer, a lower triboelectric layer, a lower electrode layer and an electric connecting member. The upper electrode layer is composed of a hybrid gel. The lower triboelectric layer corresponding to the upper electrode layer has a first surface and a second surface, and the first surface faces toward the upper electrode layer. The lower electrode layer is disposed at the second surface. The electric connecting member connects the upper electrode layer to the lower electrode layer.

First claim

What is claimed is:

1. A triboelectric nanogenerator structure consisting of an upper electrode layer, a lower triboelectric layer, a lower electrode layer and an electric connecting member, wherein:
the upper electrode layer consists of a hybrid gel, wherein the hybrid gel is conductive;
the lower triboelectric layer corresponding to the upper electrode layer has a first surface and a second surface, wherein the first surface faces toward the upper electrode layer;
the lower electrode layer is disposed at the second surface; and
the electric connecting member connects the upper electrode layer to the lower electrode layer, wherein an electron flows from the lower electrode layer to the upper electrode layer or from the upper electrode layer to the lower electrode layer via the electric connecting member;
wherein the first surface of the lower triboelectric layer contacts and separates from the upper electrode layer repeatedly.

2. The triboelectric nanogenerator structure of claim 1 , wherein the hybrid gel comprises:
a chitosan; and
a glycerol mixed with the chitosan.

3. The triboelectric nanogenerator structure of claim 2 , wherein a concentration of the glycerol is within a range of 15 wt % to 25 wt %.

4. The triboelectric nanogenerator structure of claim 1 , wherein an output voltage of the triboelectric nanogenerator structure satisfies the following condition:
0.9≤ V 1/ V 2≤1;

wherein V 1 represents the output voltage of the triboelectric nanogenerator structure at a relative humidity of 20%, and V 2 represents the output voltage of the triboelectric nanogenerator structure at the relative humidity of 80%.

5. A triboelectric nanogenerator structure, comprising:
an upper electrode layer consists of a hybrid gel, wherein the hybrid gel is conductive;
a lower triboelectric layer corresponding to the upper electrode layer having a first surface and a second surface, wherein the first surface faces toward the upper electrode layer;
a lower electrode layer disposed at the second surface; and
an electric connecting member connecting the upper electrode layer to the lower electrode layer, wherein an electron flows from the lower electrode layer to the upper electrode layer or from the upper electrode layer to the lower electrode layer via the electric connecting member;
wherein the first surface of the lower triboelectric layer contacts and separates from the upper electrode layer repeatedly, and an output voltage of the triboelectric nanogenerator structure satisfies the following condition:
0.9≤ V 1/ V 2≤1;

wherein V 1 represents the output voltage of the triboelectric nanogenerator structure at a relative humidity of 20%, and V 2 represents the output voltage of the triboelectric nanogenerator structure at the relative humidity of 80%.

6. The triboelectric nanogenerator structure of claim 5 , wherein the hybrid gel comprises:
a chitosan; and
a glycerol mixed with the chitosan.

7. The triboelectric nanogenerator structure of claim 6 , wherein a concentration of the glycerol is within a range of 15 wt % to 25 wt %.

8. A sensing system, comprising:
a humidity sensing module, comprising:
a humidity sensor; and
a power source, comprising a triboelectric nanogenerator structure, wherein the triboelectric nanogenerator structure comprises an upper electrode layer consisting of a hybrid gel, a lower triboelectric layer corresponding to the upper electrode layer having a first surface and a second surface, a lower electrode layer disposed at the second surface and an electric connecting member connecting the upper electrode layer to the lower electrode layer, the first surface faces toward the upper electrode layer, and the electric connecting member of the triboelectric nanogenerator structure is connected to the humidity sensor; and
a display module electrically connected to the humidity sensing module;
wherein an output voltage of the triboelectric nanogenerator structure satisfies the following condition:
0.9≤ V 1/ V 2≤1;

wherein V 1 represents the output voltage of the triboelectric nanogenerator structure at a relative humidity of 20%, and V 2 represents the output voltage of the triboelectric nanogenerator structure at the relative humidity of 80%.

9. The sensing system of claim 8 , wherein the display module comprises:
an LED electrically connected to the humidity sensing module.

10. The sensing system of claim 8 , further comprising a wearable member and a disposing member, wherein the disposing member corresponds to the wearable member, the upper electrode layer is disposed at the wearable member and is exposed therefrom, and the lower electrode layer is disposed between the disposing member and the lower triboelectric layer.

11. The sensing system of claim 8 , wherein the triboelectric nanogenerator structure further comprises:
a hollow spacer disposed between the upper electrode layer and the lower triboelectric layer;
wherein when the triboelectric nanogenerator structure is forced, the hollow spacer is deformed such that the upper electrode layer contacts the lower triboelectric layer.

12. A sensing system, comprising:
a sensing module, comprising a plurality of sensors, wherein each of the sensors contacts each of a plurality of portions of an article, and each of the sensors comprises a triboelectric nanogenerator structure, wherein the triboelectric nanogenerator structure comprises an upper electrode layer consisting of a hybrid gel, a lower triboelectric layer corresponding to the upper electrode layer having a first surface and a second surface, a lower electrode layer disposed at the second surface and an electric connecting member connecting the upper electrode layer to the lower electrode layer, the first surface faces toward the upper electrode layer; and
a display module electrically connected to the sensing module;
wherein output voltages of the sensors are changeable according to motions of the portions of the article, and an output voltage of the triboelectric nanogenerator structure satisfies the following condition:
0.9≤ V 1/ V 2≤1;

wherein V 1 represents the output voltage of the triboelectric nanogenerator structure at a relative humidity of 20%, and V 2 represents the output voltage of the triboelectric nanogenerator structure at the relative humidity of 80%.

13. The sensing system of claim 12 , further comprising a disposing member corresponding to the article, wherein each of the lower electrode layers are disposed at the disposing member, and the article contacts each of the sensors to cause each of the sensors to produce the output voltage.

14. The sensing system of claim 12 , wherein the triboelectric nanogenerator structure further comprises:
a hollow spacer disposed between the upper electrode layer and the lower triboelectric layer;
wherein when the triboelectric nanogenerator structure is forced, the hollow spacer is deformed such that the upper electrode layer contacts the lower triboelectric layer.

15. A disinfecting system, comprising:
a wearable member, comprising a disinfecting layer; and
a power source, comprising a triboelectric nanogenerator structure, wherein the triboelectric nanogenerator structure comprises an upper electrode layer consisting of a hybrid gel, a lower triboelectric layer corresponding to the upper electrode layer having a first surface and a second surface, a lower electrode layer disposed at the second surface and an electric connecting member connecting the upper electrode layer to the lower electrode layer, the first surface faces toward the upper electrode layer, the electric conne

Assignees

• Univ Nat Tsing Hua

Inventors

• Lin zong-hong
• Chiu Che-Min
• JAO Yun-Ting
• Ke Yi-Yun
• Yang Po-Kang

Classifications

• H02N11/002

  Generators · CPC title

• G01N27/048

  for determining moisture content of the material · CPC title

• H02N1/04 Primary

  Friction generators · CPC title