KR-20260066463-A - ALL-WEATHER MULTIFUNCTIONAL INTEGRATED ENERGY DEVICE

Abstract

The present invention relates to an all-weather functional integrated energy device. The device according to the present invention comprises: a substrate; a power generation unit provided on one side of the substrate to produce electrical energy through triboelectric charging; and a cooling unit provided on the other side of the substrate to perform cooling through radiative cooling.

Inventors

• 노준석
• 이건
• 강현정
• 윤주영

Assignees

• 포스코홀딩스 주식회사
• 포항공과대학교 산학협력단
• 재단법인 포항산업과학연구원

Dates

Publication Date

20260512

Application Date

20241104

Claims (17)

1. Substrate and; On one surface of the above substrate, a power generation unit configured to produce electrical energy through triboelectric charging; A device comprising a cooling unit provided on the other side of the above substrate to perform cooling through radiative cooling.
2. In claim 1, the power generation unit is, A triboelectric layer having one side exposed to allow friction with a droplet; A first electrode provided on one surface of the above-mentioned triboelectric layer; A device comprising a second electrode provided on the other side of the above-mentioned frictional charging layer.
3. In Article 2, A strip-shaped device in which the first electrode is attached to one surface of the triboelectric layer.
4. In Paragraph 3, A device in which the first electrode is attached at a position offset from one end of the triboelectric layer.
5. In Article 2, The above second electrode is a device in which indium tin oxide (ITO) is deposited on a glass substrate.
6. In Clause 2, the power generation unit is, A device arranged in the order of the second electrode, the triboelectric layer, and the first electrode from one side of the substrate.
7. In Article 2, A device in which the first electrode is a conductive tape.
8. In Article 2, The above triboelectric layer is made of a polymer; A device in which the above polymer is one of FEP film (Fluorinated Ethylene Propylene), PFA film (Perfluoroalkoxy), PVC film (Polyvinyl Chloride), and PET film (Polyester).
9. In claim 1, the cooling unit is, A reflective layer configured to reflect ultraviolet and near-infrared rays; A device comprising an absorption layer configured to absorb energy and far-infrared rays from an atmospheric window.
10. In Article 9, The above-mentioned reflective layer includes a first reflective layer and a second reflective layer; The above cooling unit is, A device arranged in the order of the first reflective layer, the second reflective layer, and the absorption layer from the other side of the substrate.
11. In claim 10, the first reflective layer is, A device having a structure stacked in the order of dielectric-metal-dielectric.
12. In Article 11, The above dielectric-metal-dielectric device is titanium dioxide ( TiO2 )-silver (Ag)-titanium dioxide ( TiO2 ).
13. In claim 10, the second reflective layer is, A device having a structure in which a film of a first refractive index having a predetermined relatively higher refractive index and a film of a second refractive index having a predetermined relatively lower refractive index are alternately stacked.
14. In Article 13, A device in which the values of the first refractive index and the second refractive index are determined to reflect ultraviolet and near-infrared rays.
15. In Article 13, The above film of the first refractive index is made of silicon dioxide ( SiO2 ); An apparatus in which the film of the second refractive index is made of titanium dioxide ( TiO2 ).
16. In Article 1, A device configured such that the above substrate, the above power generation unit, and the above cooling unit transmit visible light.
17. glass substrate and; On one surface of the above substrate, a triboelectric generator configured to produce electrical energy through triboelectric charging; On the other side of the above substrate, a radiative cooling unit is provided to perform cooling through radiative cooling, and The above frictional electrification generator is, A triboelectric layer having one side exposed to allow friction with a droplet; An upper electrode provided on one surface of the above-mentioned triboelectric layer; It includes a lower electrode provided on the other side of the above-mentioned triboelectric layer, and The above radiative cooling unit is, A DMD reflective layer and a Bragg reflective layer arranged to reflect ultraviolet and near-infrared rays; It includes an atmospheric window energy absorption layer arranged to absorb the energy of the atmospheric window, and An energy device arranged in the order of the above triboelectric layer, the upper electrode, the lower electrode, the glass substrate, the DMD reflective layer, the Bragg reflective layer, and the atmospheric window energy absorption layer.

Description

All-Weather Multifunctional Integrated Energy Device The present invention relates to an energy device. Sustainable energy derived from the climate is the most pervasive and inexhaustible resource. As an environmentally friendly power source, sustainable energy obtained from abundant natural resources is considered the most fundamental energy for carbon neutrality. All clean energy sources related to the climate, such as sunlight, raindrops, and wind, are the most common and inexhaustible resources in our daily lives. Consequently, research and development focused on converting natural energy into practically usable energy, particularly electrical energy—such as solar cells, piezoelectric devices, and triboelectric nanogenerators—is receiving increasing attention. However, existing devices utilizing climate-dependent energy face some limitations in practical application because their usage and performance are restricted depending on climatic and geographical conditions. FIG. 1 is a drawing showing an all-weather functional integrated energy device according to one embodiment of the present invention. FIG. 2 is a diagram showing the structure of an all-weather functional integrated energy device according to an embodiment of the present invention. FIG. 3 is a diagram showing the generation of electrical energy in the triboelectric power generation unit of an all-weather functional integrated energy device according to an embodiment of the present invention. FIG. 4 is a diagram showing the features of the triboelectric layer of an all-weather functional integrated energy device according to an embodiment of the present invention. Figure 5 shows photographs of the process in Figure 3 taken using a high-speed camera. FIG. 6 is a diagram showing the self-cleaning ability of the triboelectric charge layer of an all-weather functional integrated energy device according to an embodiment of the present invention. FIG. 7 is a diagram showing the power generation performance of the triboelectric generator of an all-weather functional integrated energy device according to an embodiment of the present invention. FIG. 8 is a diagram showing another power generation performance of the triboelectric generator of an all-weather functional integrated energy device according to an embodiment of the present invention. FIG. 9 is a diagram showing another power generation performance of the triboelectric generator of an all-weather functional integrated energy device according to an embodiment of the present invention. FIG. 10 is a diagram showing another power generation performance of the triboelectric generator of an all-weather functional integrated energy device according to an embodiment of the present invention. FIG. 11 is a diagram showing the function of the radiative cooling unit of an all-weather functional integrated energy device according to an embodiment of the present invention. FIG. 12 is a diagram showing the structure of a radiative cooling section of an all-weather functional integrated energy device according to an embodiment of the present invention. FIG. 13 is a diagram showing the reflectance/transmittance/absorption rate test of an all-weather functional integrated energy device according to an embodiment of the present invention. FIG. 14 is a diagram showing the cooling and transmission characteristics of an all-weather functional integrated energy device according to an embodiment of the present invention. FIG. 15 is another diagram showing the cooling characteristics of an all-weather functional integrated energy device according to an embodiment of the present invention. FIG. 16 is another diagram showing the cooling characteristics of an all-weather functional integrated energy device according to an embodiment of the present invention. FIG. 17 is another diagram showing the cooling characteristics of an all-weather functional integrated energy device according to an embodiment of the present invention. FIG. 1 is a drawing showing an all-weather functional integrated energy device according to one embodiment of the present invention. As shown in FIG. 1, the all-weather functional integrated energy device (100) according to an embodiment of the present invention is an energy device in which a triboelectric power generation unit (see 230 in FIG. 2 described later) that produces electrical energy by utilizing the principle of triboelectric nano-generation by droplets (raindrops) that come into contact with and flow down from the surface of the all-weather functional integrated energy device (100) during rain (power generation during rainy weather), and a radiative cooling unit (see 250 in FIG. 2 described later) that lowers the indoor temperature by utilizing the principle of radiative cooling that releases thermal energy from one side to the other side by allowing visible light of sunlight to pass through while reflecting ultraviolet and near-infrared rays when the sun is shining (cooling during clear