High-heat dissipation solar cell back panel and module and fabrication method of back panel

A solar cell, high heat dissipation technology, applied in the field of solar cells, can solve the problems of inconvenient operation, coating peeling, large volume and weight, etc., and achieve the effect of improving long-term reliability and increasing output power

Active Publication Date: 2017-08-08
江苏中来新材科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The construction object of this method coating is the finished product or semi-finished product of component, and volume and weight are relatively big, and operation is inconvenient, is unfavorable for large-scale continuous production, and the bonding between coating and back plate is not firm, and coating has risk of shedding

Method used

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  • High-heat dissipation solar cell back panel and module and fabrication method of back panel
  • High-heat dissipation solar cell back panel and module and fabrication method of back panel
  • High-heat dissipation solar cell back panel and module and fabrication method of back panel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] A method for preparing a high heat dissipation type solar battery back plate of this embodiment comprises the following steps:

[0053] 1) Add non-surface-modified single-walled carbon nanotubes with a mass percentage of 3% (wt%) to the pre-prepared fluorine-containing paint, mix and stir evenly to prepare a heat-dissipating functional fluorine-containing paint;

[0054] 2) Perform online plasma surface treatment on the substrate layer 1 (PET is selected in this embodiment) coil with a thickness of 38 microns to 300 microns and a width of 1 meter to 4 meters, and the processing line speed is 5 to 100 meters per minute, the pre-prepared heat-dissipating functional fluorine-containing coating is evenly coated on the surface of the substrate layer 1 by casting technology; Curing to obtain a high heat dissipation air surface outer layer 2 (air surface contact protection layer), grafting a layer of polar monomolecular layer 3 on the surface of the high heat dissipation air s...

Embodiment 2

[0060] The high heat dissipation solar battery back sheet of this example is prepared in the same manner as in Example 1, except that in step 1), 3% (wt%) of surface-modified Single-walled carbon nanotubes are mixed and stirred evenly to prepare functional fluorine-containing heat-dissipating coatings.

Embodiment 3

[0062] The high heat dissipation solar battery back sheet of this example is prepared in the same manner as in Example 1, except that in step 1), 3% (wt%) non-surface-modified The multi-walled carbon nanotubes are mixed and stirred evenly to prepare a functional fluorine-containing heat-dissipating coating.

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Abstract

The invention relates to a high-heat dissipation solar cell back panel and module and a fabrication method of the back panel. The high-heat dissipation solar cell back panel comprises a high-heat dissipation air surface outer layer, a substrate layer and an inner layer having favorable adhesive force with a package material which are sequentially arranged, wherein the high-heat dissipation air surface outer layer and the inner layer having favorable adhesive force with the package material are both functional fluorine-containing coating layers containing carbon nanotubes and / or graphene. The high-heat dissipation solar cell back panel has the beneficial effects that layers of the whole back panel are tightly combined by chemical bonds, hydrogen bonds and Vander Waals forces, and the whole back panel is a typical non-layered and integrated structure; double surfaces of the back panel contain fluorine, and the long-term reliability of the module is improved; the heat conduction coefficient and the thermal radiation efficiency of the back panel can be controlled according to the contents of the carbon nanotubes and the graphene; and heat generated by the cell module is timely dissipated, the working temperature of the module can be expected to be effectively reduced to be 2-6 DEG C, the output power of a photovoltaic module is improved by 1-2%, the lifetime of the cell is prolonged, and the power generation cost of the module is reduced.

Description

technical field [0001] The invention relates to the field of solar cells, in particular to a high heat dissipation type solar cell backboard, components and a preparation method for the backboard. Background technique [0002] A solar cell is a device that converts solar energy into electricity through the photovoltaic effect. The acquisition of its electric energy is a renewable and environmentally friendly power generation method, that is, no greenhouse gases such as carbon dioxide will be produced during the power generation process, and it will not pollute the environment. Therefore, solar energy is a typical clean energy source. The most important parameter for solar cells is the conversion efficiency. Generally speaking, the conversion rate of land-based photovoltaic power generation is generally between 10% and 30% depending on the power generation material, which means that the remaining solar energy will be converted into Therefore, continuously improving the conve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/049H01L31/052H01L31/18B82Y30/00
CPCB82Y30/00H01L31/049H01L31/052H01L31/18Y02E10/50
Inventor 林建伟张育政孙玉海余艺华
Owner 江苏中来新材科技有限公司
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