Photovoltaic module

A photovoltaic module and adhesive film technology, which is applied in the field of solar cells, can solve problems such as poor performance of photovoltaic modules, affecting the light absorption capacity of cells, and affecting the reflection ability of adhesive films, so as to achieve good absorption capacity, improve performance, and improve performance. Effect

Pending Publication Date: 2022-07-22
ZHEJIANG JINKO SOLAR CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, in the actual process of preparing photovoltaic modules, it is found that the thickness of the adhesive film on both sides of the battery sheet will affect the reflection ability of the adhesive film, thereby affecting the light absorption ability of the battery sheet, thus making the performance of the photovoltaic module poor.

Method used

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Embodiment Construction

[0023] An embodiment of the present application provides a photovoltaic module, including: a first cover plate, a first adhesive film, a cell sheet, a second adhesive film and a second cover sheet, the thickness of the cell sheet being 100 μm to 170 μm, and the first adhesive film Under the condition that the thickness of the film is 300μm~550μm and the thickness of the second film is 300μm~710μm, the thickness of the first film and the thickness of the second film satisfy the following relationship: 0.0007x 2 -0.4297x+374.2≤y≤0.0034x 2 -1.0297x+314.19, where x is the thickness of the first adhesive film, and y is the thickness of the second adhesive film. In this way, the thickness of the first adhesive film and the thickness of the second adhesive film can be matched with the battery sheet respectively, so that The first film and the second film have a strong ability to absorb incident light, improve the absorption and utilization rate of the cell to the incident light, ther...

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Abstract

The embodiment of the invention relates to the field of solar cells, in particular to a photovoltaic module which comprises a first cover plate, a first adhesive film, a battery piece, a second adhesive film and a second cover plate, the thickness of the battery piece is 100-170mu m, the thickness of the first adhesive film is 300-550mu m, the thickness of the second adhesive film is 300-710mu m, and the thickness of the second cover plate is 300-710mu m. The thickness of the first adhesive film and the thickness of the second adhesive film meet the following relational expression: y is greater than or equal to 0.0007 * 2-0.4297 x + 374.2 and less than or equal to 0.0034 * 2-1.0297 x + 314.19, x is the thickness of the first adhesive film, and y is the thickness of the second adhesive film; the welding strip is arranged on the surface of the battery piece, and the thickness of the welding strip ranges from 200 micrometers to 400 micrometers. The embodiment of the invention is beneficial to improving the performance 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 photovoltaic assembly. Background technique [0002] Photovoltaic modules, also called solar panels, generate electricity through the "photovoltaic effect" and are the core part of the solar power generation system. A photovoltaic module is usually composed of a cell, a cover plate and an adhesive film, wherein the adhesive film is used to encapsulate the upper and lower surfaces of the cell to protect the cell. [0003] However, current photovoltaic modules suffer from poor performance. The analysis found that one of the reasons for the poor performance of photovoltaic modules is that on the one hand, the adhesive film has the effect of encapsulating the cells, and on the other hand, the adhesive film can also reflect the light incident on the surface of the cell, so as to prevent Re-reflects light into the cell. At present, in the actual preparat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/048H01L31/05H01L31/054
CPCH01L31/0481H01L31/0508H01L31/0488H01L31/0547H01L31/048Y02E10/50H01L31/022425H01L31/02167H01L31/049H01L31/02H01L31/0512
Inventor 彭莹莹陈姝雅郝国晖
Owner ZHEJIANG JINKO SOLAR CO LTD
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