Solar battery module and preparation process thereof

A technology for solar cells and manufacturing processes, applied in electrical components, sustainable manufacturing/processing, circuits, etc., can solve the problems of inconsistent appearance and shape of laminated components, different sizes of right-angle sheets and chamfered sheets, and increased difficulty for users. Achieve the effect of facilitating large-scale industrialization, facilitating large-scale application, and reducing power generation costs

Pending Publication Date: 2018-06-15
JA SOLAR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the manufacturing process of the existing laminated sheet assembly, when the cell sheet is in a non-right-angle shape, it is divided into a right-angle sheet and a non-right-angle sheet (chamfer sheet) after being cut. , so that the size of the right-angled piece and the chamfered piece are different, so that there is a current mismatch problem. Therefore, in the component manufacturing process, the right-angled piece and the chamfered piece need to be separated and manufactured separately. This manufacturing method has the following defects:
[0005] ⑴ Increase the sorting process of right-angled and chamfered pieces, the production process is cumbersome, affecting production efficiency
[0006] (2) The appearance and shape of the laminated modules made of right-angled sheets and chamfered sheets are inconsistent, and there are large differences in module power, which makes it more difficult for users to use, and it is also prone to mismatching between modules

Method used

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  • Solar battery module and preparation process thereof
  • Solar battery module and preparation process thereof
  • Solar battery module and preparation process thereof

Examples

Experimental program
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Embodiment 1

[0038] Such as Figure 1-7 As shown, it is a solar cell module of the present invention, which includes panels, encapsulation materials, battery strings, encapsulation materials and back sheets arranged in sequence from top to bottom, wherein the panel is a glass plate, the encapsulation material is POE, and the back sheet is the back Partially transparent glass panels. The battery string 2 is mainly composed of several small battery pieces 1 connected in series, and the small battery piece 1 is divided into non-right-angle battery pieces 3, that is, after multiple divisions in the horizontal direction along the longitudinal non-deposited metal parts of the non-right-angle battery pieces 3 Each narrow sheet-shaped small battery sheet 1 is formed, and the area of ​​each small battery sheet 1 is equal. The corners of one side of the small battery sheet located at the beginning and end of the non-right-angled battery sheet 3 are chamfered, and the corners of the small battery she...

Embodiment 2

[0048] The difference between this embodiment and Embodiment 1 is that this embodiment uses P-type back passivated cells to make solar cell modules, and the P-type back passivated cells are single-sided power generation cells, and the back is covered with aluminum paste and silver paste. There is basically no power generation under the covered light. The positive and negative electrodes of the battery are distributed on the front and back of the battery. The front and back of the battery are respectively equipped with 3 to 9 busbars. The front and back busbars of the battery are not on the battery. At the corresponding positions up and down, when the P-type back passivated cell is cut into small cells 1, the front busbar on each small cell 1 is on the front side, and the back busbar is on the back side. The other side.

[0049] The manufacturing steps of the solar cell module are as follows:

[0050] (1) Select the target cell: select the P-type back passivated cell. When sor...

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Abstract

The invention discloses a solar battery module and a preparation process thereof. The solar battery module comprises a panel, a packaging material, a battery string, a packaging material and a back plate which are arranged from the top to bottom in sequence; the battery string mainly comprises several small-sized battery pieces connected in series; the small-sized battery pieces are formed by non-right-angle battery pieces in a cutting manner; equivalently, the parts, not deposited with metal, of the non-right-angle battery pieces are cut for multiple times in the transverse direction to formthe respective narrow-sheet-shaped small-sized battery pieces, wherein the small-sized battery pieces are equal in areas; and the head parts and tail parts of the adjacent small-sized battery pieces are overlapped together to enable the main gates of the two battery pieces to be correspondingly connected to perform electrode connection conveniently to realize serial connection so as to form the battery string. The problem of current mismatch caused by unequal sizes of the cut battery pieces from the non-right-angle battery pieces can be solved; after the non-right-angle battery pieces are cutinto the small-sized battery pieces, screening of chamfer pieces is not needed, so that the preparation process is simplified, and production efficiency is improved; and in addition, overlapped piecemodules are consistent in appearances, low in power difference, and more concentrated in gears, so that large-scale application by clients can be convenient.

Description

technical field [0001] The present invention relates to a solar cell assembly, and also relates to a preparation process of the solar cell assembly. Background technique [0002] The most direct and clean way for human beings to obtain energy is to use solar energy, and solar photovoltaic cells are one of the most effective ways to convert solar energy into electrical energy. In recent years, the world production of solar cells has grown at a rate of 30-40% per year, becoming one of the fastest-growing industries in the market. Among them, crystalline silicon solar cells have gradually matured and occupied a dominant position in the market. [0003] With the development of crystalline silicon solar cell technology, various high-efficiency cell and module technologies are gradually becoming mature. According to different manufacturing processes, cells are divided into back passivated cells, passivated contact cells, full back contact cells, double-sided passivated double-side...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/048H01L31/05H01L31/18
CPCH01L31/048H01L31/0504H01L31/18Y02E10/50Y02P70/50
Inventor 刘淑华周艳方陈宏月尹海鹏单伟
Owner JA SOLAR
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