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Sorting method of solar cells and photovoltaic modules

A technology of solar cells and battery packs, applied in the field of solar cells, can solve problems such as uneven color of photovoltaic modules, and achieve the effect of uniform color and uniform color

Active Publication Date: 2022-04-19
晶科能源(海宁)有限公司
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Problems solved by technology

[0003] However, there is currently a problem that the color of the photovoltaic module is still uneven after the solar cells that have been sorted by color are prepared into photovoltaic modules.

Method used

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  • Sorting method of solar cells and photovoltaic modules
  • Sorting method of solar cells and photovoltaic modules
  • Sorting method of solar cells and photovoltaic modules

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Embodiment Construction

[0028] It can be known from the background art that there is a problem of uneven color of photovoltaic modules at present.

[0029] Analysis found that one of the reasons for the uneven color of photovoltaic modules is that anti-reflection films are usually prepared on the surface of solar cells to make the surface of solar cells less reflective to incident light. However, due to the difference in the coating process, the anti-reflection coating on the surface of the solar cell may have different refractive indices. The size of photovoltaic modules prepared from multiple solar cells is relatively large. When viewing photovoltaic modules from different angles, if the difference in refractive index of the anti-reflection films on the surfaces of different solar cells is large, the incident light will be affected by different solar cells. The optical path difference on the anti-reflection film on the surface of the cell is quite different, so that the light waves reflected on the...

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Abstract

The embodiment of the present application relates to the technical field of solar cells, in particular to a method for sorting solar cells and photovoltaic modules. The method for sorting solar cells includes: providing a plurality of solar cells, the surfaces of which are provided with anti-reflective coatings; A solar cell is screened to obtain several battery groups, wherein the battery group includes multiple solar cells with the same color system, and the difference between the refractive index of the anti-reflection film of each solar cell and the preset refractive index is within a preset value. within the threshold range. After the battery group obtained by sorting in the embodiment of the present application is prepared into a photovoltaic module, it is beneficial to improve the color uniformity of the photovoltaic module.

Description

technical field [0001] The embodiments of the present application relate to the field of solar cells, and in particular, to a method for sorting solar cells and a photovoltaic assembly. Background technique [0002] With the development of the solar industry, the demand for solar cells is increasing day by day, and people's requirements for the quality of solar cells are also getting higher and higher. Usually, solar cells with the same color need to be prepared into photovoltaic modules, so that the overall color of the photovoltaic modules is uniform, so that it is fashionable and beautiful, and also has power generation benefits. Therefore, sorting the appearance quality and color of solar cells before they leave the factory becomes crucial. [0003] However, at present, there is a problem that the color of the photovoltaic modules is still uneven after the color-sorted solar cells are prepared into photovoltaic modules. SUMMARY OF THE INVENTION [0004] Embodiments o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B07C5/342H01L31/18H01L31/048
CPCB07C5/342H01L31/186H01L31/048Y02E10/50Y02P70/50
Inventor 夏志鹏黄纪德王龙王卉刘长明张昕宇金浩
Owner 晶科能源(海宁)有限公司
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