A kind of solar cell module and preparation method

A technology of solar cells and components, applied in the field of solar cells, can solve problems such as inconvenient processing, slivers, and easy occurrence of hidden cracks, and achieve the effects of reducing usage, improving reliability, and reducing the risk of slitting

Active Publication Date: 2022-04-15
晶澳(扬州)新能源有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of the above analysis, the present application aims to provide a solar cell module and its preparation method, which solves the problems caused by the external force at the edge of the overlapping area of ​​the cells in the lamination and lamination process in the solar cell module manufacturing process in the prior art. Prone to cracks or even splits, inconvenient processing

Method used

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  • A kind of solar cell module and preparation method
  • A kind of solar cell module and preparation method
  • A kind of solar cell module and preparation method

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preparation example Construction

[0050] The application provides a method for preparing a solar cell assembly, see Figure 1 to Figure 7 , including the following steps:

[0051] Step S1: sequentially laying the first packaging film 2, the battery string, the second packaging film 5 and the front cover 6 on the rear cover 1 to obtain a laminate;

[0052] Step S2: laminating the laminate to obtain a solar cell module.

[0053] Wherein, the battery string includes a plurality of battery slices 3 connected in a head-to-tail overlapping manner. Moreover, in the present application, there may be multiple battery strings.

[0054] The first encapsulation film 2 and / or the second encapsulation film 5 adopt Figure 1 to Figure 3 The encapsulating adhesive film with a local protrusion 8 structure is shown. Specifically, the encapsulant film with the structure of partial protrusions 8 includes a main body 7 and a plurality of local protrusions 8 disposed on the main body 7 and corresponding to the overlapping areas...

Embodiment 1

[0089] The solar cell encapsulating adhesive film of this embodiment includes: a main body 7 and a plurality of local protrusions 8, the main body 7 and the local protrusions 8 are integrally arranged to form an integral adhesive film, and the solar cell encapsulating adhesive film is an EVA adhesive film; wherein, the main body 7 The gram weight is 420g / m 2 , the weight of local protrusion 8 is 40g / m 2 ; The local protrusion 8 along the direction perpendicular to the extension of the battery string is a segmented protrusion, see figure 1 .

Embodiment 2

[0091] The solar cell encapsulating adhesive film of this embodiment includes: a main body 7 and a plurality of local protrusions 8, the main body 7 and the local protrusions 8 are integrally arranged to form an integral adhesive film, and the solar cell encapsulating adhesive film is an EVA adhesive film; wherein, the solar cell The grammage of the packaging film main body 7 is 450g / m 2 , the weight of local protrusion 8 is 60g / m 2 ; The local protrusion 8 along the direction perpendicular to the extension of the battery string is a continuous protrusion, see Figure 2 to Figure 3 .

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Abstract

The application discloses a solar cell module and its preparation method, which belongs to the technical field of solar cells, and solves the problem of external force at the edge of the overlapping area of ​​the solar cell module in the prior art during the preparation process of the solar cell module and in the lamination process. It is prone to cracks or even slivers, and the problem of inconvenient processing. The preparation method of the present application includes the following steps: sequentially laying the first encapsulation film, the battery string, the second encapsulation film and the front cover on the rear cover to obtain a laminate; laminating the laminate to obtain a solar cell The assembly; the battery string includes a plurality of battery sheets connected in a head-to-tail overlapping manner; the first encapsulation film includes a main body and a plurality of local protrusions arranged on the main body and corresponding to the overlapping areas of the battery sheets, and / or Alternatively, the second encapsulation film includes a main body and a plurality of local protrusions disposed on the main body and corresponding to overlapping regions of the battery sheets. This application can be used for solar power generation.

Description

technical field [0001] The present application relates to a solar cell, in particular to a solar cell component and a preparation method. Background technique [0002] The technology of solar cell modules is very mature. The structure of a typical single-glass solar cell module mainly includes glass, the first EVA layer, battery strings, the second EVA layer and backplane packaging; a typical double-glass module mainly includes glass, the first EVA Layer, battery strings, second EVA layer and glass encapsulation. [0003] At present, the technologies that effectively increase the effective power generation area of ​​solar modules mainly include: shingling technology, splicing technology and stitching welding technology. Among them, in the shingling technology and the lap welding technology, the number of internal cells of the same size module is increased by stacking and placing adjacent cells head to tail, thereby improving power generation efficiency. Generally speaking,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L31/18H01L31/048
CPCH01L31/18H01L31/048H01L31/0481Y02E10/50Y02P70/50
Inventor 陈斌黄宗明李令先
Owner 晶澳(扬州)新能源有限公司
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