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Reflective coating, preparation method thereof, and photovoltaic module using the coating

A technology of photovoltaic modules and reflective coatings, which is applied in the manufacture of electrical components, semiconductor devices, and final products. It can solve problems such as poor reflective effects and no help in improving the efficiency of solar modules, so as to achieve good reflection, improve conversion efficiency, and improve reflection. performance effect

Active Publication Date: 2016-03-30
CHANGSHU CANADIAN SOLAR ELECTRIC POWER TECHCO +2
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Problems solved by technology

[0003] In solar modules, in addition to absorbing sunlight to excite electron-hole pairs to generate photogenerated carriers, the improvement of photoelectric conversion efficiency also depends on the reflection and scattering of solar panels and backplanes, while the reflection of conventional backplanes and ribbons The effect is very poor, almost does not help the efficiency of solar modules

Method used

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  • Reflective coating, preparation method thereof, and photovoltaic module using the coating
  • Reflective coating, preparation method thereof, and photovoltaic module using the coating

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preparation example Construction

[0039] The preparation method of reflective coating of the present invention comprises the following steps:

[0040] First, add the dispersant, glass microspheres and titanium dioxide to the high-speed mixer and mix evenly;

[0041] Then, add the resin, xylene, solvent, leveling agent, defoamer, and antioxidant in sequence, and at the same time, stir until a uniform solution is obtained.

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Abstract

The invention provides a reflective coating for photovoltaic modules. The reflective coating contains 100 parts by weight of the following components: 40-60 parts of resin, 5-10 parts of solvent, 10-30 parts of titanium dioxide, glass micro 20-40 parts of beads, 5-15 parts of xylene. The reflective coating is coated on the back plate of the photovoltaic module and the surface of the bus bar, so that it can increase the effective light reflected from the surface of the bus bar and the back plate, and then reflect and scatter to the battery sheet, greatly improving the photoelectric conversion efficiency of the module . Due to the addition of titanium dioxide, it has excellent reflection and UV resistance; the glass microspheres make the coating have excellent self-cleaning function and light reflection performance.

Description

technical field [0001] The invention relates to the field of photovoltaics, in particular to a photovoltaic module with a reflective coating. Background technique [0002] Reflective and scattering coatings are very suitable for the solar processing industry due to their excellent reflection and scattering effects, especially for materials such as solder strips and backplanes. [0003] In solar modules, in addition to absorbing sunlight to excite electron-hole pairs to generate photogenerated carriers, the improvement of photoelectric conversion efficiency also depends on the reflection and scattering of solar panels and backplanes, while the reflection of conventional backplanes and ribbons The effect is very poor, and it hardly helps to improve the efficiency of solar modules. [0004] In view of this, it is necessary to provide a new reflective coating for photovoltaic modules to solve the above problems. Contents of the invention [0005] The technical problem to be ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L31/0216H01L31/18
CPCY02P70/50
Inventor 刘国丽许涛陈道远
Owner CHANGSHU CANADIAN SOLAR ELECTRIC POWER TECHCO
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