Solar module and preparation method thereof

A technology of solar cells and solar cells, which is applied in the field of solar cells and can solve problems such as easy leakage

Inactive Publication Date: 2016-01-06
ZHANGJIAGANG GCL INTEGRATION TECH CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Based on this, it is necessary to provide a solar cell module that reduces the...

Method used

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  • Solar module and preparation method thereof
  • Solar module and preparation method thereof
  • Solar module and preparation method thereof

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preparation example Construction

[0045] The preparation method of the solar cell module of one embodiment, such as image 3 shown, including the following steps:

[0046] S10 , providing a battery cutting sheet, which is formed by cutting the solar battery sheet along an extending direction perpendicular to the busbar, and has a cut end and an uncut end disposed opposite to each other.

[0047] In a preferred embodiment, the cell cutting sheet is formed by cutting the solar cell sheet along its back side. Lasers can be used to cut solar cells. Since laser cutting has an oxidation effect at the same time, the insulation effect is enhanced and the risk of leakage can be reduced.

[0048] S20. Connect the battery cut sheets in two adjacent steps S10 in series with a connector, so that one end of the connector is connected to the front electrode of the battery cut sheet at the uncut end, and the other end passes through the uncut end of the battery cut sheet to be adjacent to it The gaps between the cutting end...

Embodiment 1

[0055] The solar cell assembly of this embodiment includes five series-connected battery groups, each battery group includes two parallel-connected cell strings, and each cell string includes twelve series-connected cut-off cells. Each cell cut sheet is formed by cutting the solar cell sheet in half along its back side with a laser.

[0056] The circuit diagram of the solar cell assembly of the present embodiment is as follows Figure 4 shown. In addition, due to the hot spot characteristics of solar cells, under certain conditions, a shaded solar cell in a series branch will be used as a load to consume energy generated by other illuminated solar cells. The shaded solar cell assembly will generate heat at this time, which will affect the efficiency of a string of solar cell sheets, resulting in lower efficiency of the entire solar cell assembly. Therefore, in this embodiment, one diode 120 is connected in parallel to each battery group, and five diodes 120 are connected in ...

Embodiment 2

[0058] The difference between this embodiment and Embodiment 1 is that the solar cell assembly of this embodiment includes six battery packs connected in series, and each battery pack includes two strings of battery slices connected in parallel, and each string of battery slices Consists of ten battery cut sheets connected in series with each other.

[0059] In addition, refer to Figure 5 , in this embodiment, a diode 220 is connected in parallel for every two battery packs. In this way, the diodes 220 are connected in parallel to the four battery strings in every two battery groups, and three diodes 220 are connected in parallel in the whole solar cell module.

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Abstract

The invention relates to a solar module and a preparation method thereof. The solar module comprises at least two battery packs in series connection; each battery pack comprises at least two cell trains in parallel connection; each cell train comprises at least two cell cutting blades in series connection, and connecting pieces used for installing adjacent cell cutting blades in series; the cell cutting blades are formed by cutting solar cells along an extending direction perpendicular to main grids. Each cell cutting blade possesses a cut end and an uncut end which are opposite, wherein the uncut end of the cell cutting blade is opposite to the cut end of an adjacent cell cutting blade, and a gap is left therebetween for the penetration of a connecting piece; one end of the connecting piece is in connection with the front surface electrode at the uncut end of the cell cutting blade, and the other end penetrates the gap to be in connection with the back electrode at the cut end of the adjacent cell cutting blade. The solar module reduces short circuit, thereby cuts electric leakage risks, and is in favor of application.

Description

technical field [0001] The invention relates to the technical field of solar cells, in particular to a solar cell component and a preparation method thereof. Background technique [0002] As a new energy source, solar energy has the advantages of being inexhaustible, clean and environmentally friendly compared with traditional fossil fuels. At present, the main solar energy utilization method is to convert the received light energy into electrical energy output through solar cell components. The traditional solar cell component is formed by connecting several solar cells (or photovoltaic cells) in series and then packaging them in a square array. large-area battery components. Among them, the solar cell sheet absorbs light energy, and the accumulation of charges of opposite signs occurs at both ends of the battery, which generates "photovoltaic voltage", which is the "photovoltaic effect". Under the action of the photovoltaic effect, the two ends of the solar cell generate ...

Claims

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Application Information

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IPC IPC(8): H01L31/05H01L31/18
CPCH01L31/0504H01L31/1876Y02E10/50Y02P70/50
Inventor 周小良于松坤黄强
Owner ZHANGJIAGANG GCL INTEGRATION TECH CO LTD
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