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Method for enhancing packaging efficiency of solar module

A technology for solar modules and high efficiency, applied in electrical components, semiconductor devices, photovoltaic power generation, etc., can solve the problems of easy damage to the structure, impact on the service life of components, high cost and energy consumption, and achieve easy cleaning, enhanced film strength, and not easy to fall off Effect

Inactive Publication Date: 2011-05-04
CEEG SHANGHAI SOLAR SCI & TECH
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Problems solved by technology

[0008] Relevant companies use etching technology to form a 100nm-thick porous silica support layer on the glass surface, but the porous support formed after glass etching has poor strength, and the structure is easily damaged, which has an impact on the service life of the components and is not easy to apply in Solar module packaging
[0009] There are also companies that use spraying methods to form a layer of anti-reflection coating on the surface of solar cell glass. The disadvantages of applying this coated glass to the packaging of components are high cost and energy consumption, and the film is too thick.

Method used

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  • Method for enhancing packaging efficiency of solar module
  • Method for enhancing packaging efficiency of solar module

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Embodiment

[0024] Such as figure 1 , figure 2 As shown, a method for improving the encapsulation efficiency of a solar module, the method includes a glass 1, a first EVA adhesive film 2, a battery sheet 3, an EVA cover strip 4, a spacer strip 5, and a second EVA glue from top to bottom. Film 6, back plate 7, the surface of the glass 1 is coated with a layer of anti-reflection film, the thickness is 1 / 4 of a certain wavelength λ, and when the refractive index is the square root of the product of the refractive index of air and glass, this anti-reflection film The reflectance of the light of this wavelength is 0, which greatly improves the light transmittance of the glass. The surface of the glass 1 is a rough surface, which improves the wettability of the surface, endows the surface with superhydrophilicity or superhydrophobicity, and makes the film have a self-cleaning function, so that the surface of the component is easy to clean. The components included in the method also include i...

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Abstract

The invention relates to a method for enhancing packaging efficiency of a solar module. The module included in the method comprises glass, a first EVA (Ethylene-Vinyl Acetate) adhesive film, a cell piece, an EVA cover strip, a separating strip, a second EVA adhesive film and a back plate, wherein the surface of the glass is plated with a layer of antireflection coating. Compared with the prior art, the invention has the advantages of easy cleaning of the surface of the module, no influence on the service life of the module, enhancement of the output power of the module, etc.

Description

technical field [0001] The invention relates to solar component encapsulation technology, in particular to a method for improving the efficiency of solar component encapsulation. Background technique [0002] The power level of solar modules can be divided into early, mid-term and long-term. The early power of the module is closely related to the difference in the manufacturing process of the solar cell. The mid-term and long-term power level of components is caused by component packaging materials and packaging technology. [0003] At present, the highest conversion efficiencies of monocrystalline silicon and polycrystalline silicon solar cells have reached 24.7% and 20.3%, respectively. It is very difficult to increase the photoelectric conversion efficiency by 0.1% stably based on the existing technology. Therefore, in the case that the performance of the battery sheet is difficult to change, the method of using new packaging materials to improve the packaging efficienc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/048H01L31/0232H01L31/0216H01L31/0203
CPCY02E10/50
Inventor 李淳慧魏晨星肖秀琴
Owner CEEG SHANGHAI SOLAR SCI & TECH
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