Solar cell assembly for increasing light energy utilization ratio

A technology of solar cells and solar cells, which is applied in the field of solar materials and devices, can solve the problems of low utilization rate of light, blocking light, reducing light utilization rate, etc., and achieve the effect of increasing output power and conversion efficiency, and increasing photogenerated current

Active Publication Date: 2012-07-04
WORLDWIDE ENERGY & MFG NANTONG
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  • Abstract
  • Description
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Problems solved by technology

[0004] The above methods have a certain effect on improving the conversion efficiency of solar cell modules, but the utilization rate of sunlight by the modules is not ideal. The reflection direction is random, resulting i

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  • Solar cell assembly for increasing light energy utilization ratio
  • Solar cell assembly for increasing light energy utilization ratio
  • Solar cell assembly for increasing light energy utilization ratio

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Embodiment Construction

[0024] In order to further understand the technical characteristics and content of the patent of the present invention, the detailed technical description of this patent is as follows:

[0025] Such as figure 1 and image 3 As shown in the present invention, a solar cell assembly that increases the utilization rate of light energy includes an ultra-white low-iron tempered glass 1, a first EVA layer 21, and interconnected solar cells 3 that are sequentially arranged and packaged from top to bottom. 1. The second EVA layer 22 and the back sheet 4 are different from conventional solar cell components in that in order to achieve higher light utilization efficiency of the components, the surface of the solder ribbon 5 connecting the solar cells 3 has been textured. In this embodiment, the surface of the solder strip 5 has several regularly arranged V-shaped grooves, and the V-shaped angle of the V-shaped grooves is between 120° and 135°.

[0026] When the incident light passes th...

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Abstract

The invention discloses a solar cell assembly for increasing the light energy utilization ratio. The solar cell assembly comprises ultra-white low-iron toughened glass (1), a first EVA (Ethylene-Vinyl Acetate) layer (21), interconnected solar cells (3), a second EVA layer (22) and a back plate (4) arranged in sequence from top to bottom and encapsulated integrally, and is characterized in that: texturing treatment is performed on the surface of a welding band (5) for connecting the solar cells (3); gaps among the solar cells (3) are provided with cell gap reflecting layers (6); and texturing treatment is performed on the surfaces of the cell gap reflecting layers (6). Compared with the prior art, the solar cell assembly has the advantages that: the light utilization ratio of the assembly can be increased greatly, light rays which cannot be utilized by the assembly originally are reflected onto the solar cells and absorbed by the solar cells, photo-generated current is indirectly increased, and the output power and conversion efficiency of the assembly are increased.

Description

technical field [0001] The invention relates to the field of solar energy materials and devices, in particular to a solar battery component that increases the light energy utilization rate. 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 currently widely used solar cell modules are basically composed of ultra-white low-iron tempered glass, two layers of EVA ethylene-vinyl acetate copolymer, solar cells and backsheets encapsulated between the two layers of EVA. When the solar cell module ...

Claims

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Application Information

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IPC IPC(8): H01L31/052H01L31/048
CPCY02E10/52Y02E10/50
Inventor 王建军宁兆伟冯涛梁丛武张健超黄涛华周义
Owner WORLDWIDE ENERGY & MFG NANTONG
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