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A solar cell module with high conversion efficiency

A solar cell, high conversion technology, applied in the field of solar materials and devices, which can solve problems such as loss

Inactive Publication Date: 2011-12-14
WORLDWIDE ENERGY & MFG NANTONG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen that a large part of the solar radiation energy cannot be absorbed by solar cells and is lost.

Method used

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  • A solar cell module with high conversion efficiency
  • A solar cell module with high conversion efficiency
  • A solar cell module with high conversion efficiency

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Embodiment Construction

[0019] like figure 2 As shown, a solar cell assembly with high conversion efficiency of the present invention includes ultra-white low-iron tempered glass 1, a first EVA layer 21, and solar cells 3 connected in series with welding ribbons arranged in sequence from top to bottom. The second EVA layer 22 , the third EVA layer 23 and the back plate 5 , and the reflective layer 4 is installed between the second EVA layer 22 and the third EVA layer 23 . Among them, the toughened glass has high light transmittance and plays the role of protecting the solar cells, the EVA material has the function of sealing and bonding, and the back plate 5 is made of TPT (polyvinyl fluoride composite film) material, which has aging resistance, corrosion resistance, The ability to prevent water vapor penetration and good insulation properties. Lay each layer of material in order, put it into a vacuum laminator for high-temperature lamination, and cure the three EVA layers to form a whole laminate,...

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Abstract

The invention discloses a solar cell module with high conversion efficiency, which belongs to the technical field of solar energy materials and devices. A solar cell module with high conversion efficiency, including ultra-white low-iron tempered glass arranged in sequence from top to bottom and packaged as a whole, a first EVA layer, solar cells connected in series, a second EVA layer, a third A reflective layer is arranged between the EVA layer and the back plate, the second EVA layer and the third EVA layer, and regularly arranged V-shaped grooves are arranged on the surface of the reflective layer. This V-groove makes the component more reflective. The inner angle of the V-shaped groove is 120°-138°. This can ensure that when the light reflected by the two surfaces of the V-shaped groove reaches the glass surface, its incident angle is greater than the critical angle and is totally reflected to be absorbed by the cell, instead of being refracted into the air and lost.

Description

technical field [0001] The invention relates to a solar cell assembly, in particular to a solar cell assembly with relatively high conversion efficiency. It belongs to the technical field of solar energy materials and devices. Background technique [0002] As a clean and renewable new energy, solar energy has received more and more attention, and its application is becoming more and more extensive. At present, one of the most important applications of solar energy is photovoltaic power generation. The most basic unit of solar photovoltaic power generation is a solar cell. In a specific application, a plurality of solar cells are usually formed into a solar cell module, and then each solar cell module is connected to form an overall current output. [0003] The solar cell modules currently widely used are basically composed of ultra-white low-iron tempered glass, two layers of EVA (ethylene-vinyl acetate copolymer), solar cells and back sheets arranged in two layers of EVA l...

Claims

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Application Information

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IPC IPC(8): H01L31/055H01L31/048B32B27/08B32B3/30B32B27/36H01L31/056
CPCY02E10/50Y02E10/52
Inventor 王建军宁兆伟冯涛张健超黄涛华杨华程文明
Owner WORLDWIDE ENERGY & MFG NANTONG
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