A kind of solar battery string, battery component and preparation method thereof

A technology of solar cells and components, applied in the field of solar cells, can solve the problems of high input costs, reduce transportation and installation costs, improve space utilization, and improve power generation

Active Publication Date: 2021-07-16
晶澳(扬州)新能源有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above analysis, the present invention aims to provide a solar cell string, a cell module and a preparation method thereof, to solve the problem that existing technologies for increasing the effective power generation area of ​​solar modules need to repurchase a whole set of equipment and open new molds, resulting in high input costs The problem

Method used

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  • A kind of solar battery string, battery component and preparation method thereof
  • A kind of solar battery string, battery component and preparation method thereof
  • A kind of solar battery string, battery component and preparation method thereof

Examples

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Effect test

Embodiment 1

[0049] A specific embodiment of the present invention discloses a solar cell string, including a plurality of battery sheets 1, a welding ribbon 2 connecting the plurality of battery sheets, and a bus bar connected to the welding ribbon, and the bus bar includes a first segment bus bar 3 and the second busbar. A solar cell string is formed by connecting multiple solar cells with ribbons.

[0050] When the ribbon of the solar cell string is connected to the bus bar with the ribbon at the beginning or end of the backlight side, the first section of the bus bar overlaps with the solar cell string whose ribbon is at the beginning or end of the backlight Placement, the first section of bus bar is arranged along the extension direction of the solar cell string perpendicular to the solar cell string, at the edge of the solar cell string at the beginning or end of the solar cell string, such as Figure 2-5 shown. Specifically, the solder ribbon partially overlaps or fully overlaps t...

Embodiment 2

[0058] Another specific embodiment of the present invention discloses a solar cell assembly, which includes a plurality of solar cell strings, and the plurality of solar cell strings are arranged in dislocations, such as Figure 8 As shown, adjacent solar cell strings are connected by bus bars to form a solar cell module. The arrangement of conventional solar cell modules is as follows: Figure 9 shown.

[0059] Specifically, the overlapping part of the bus bar and the battery sheet is only arranged on the back of the battery sheet, and the bus bar at the other end is conventionally connected to the battery sheet. This is because: if the bus bars at both ends overlap with the cells, the front light-receiving surface will be blocked by the solder strips, which will affect the power generation of the entire photovoltaic module, such as Figure 10 and 11 shown. In this embodiment, the distance c between the battery sheet and the bus bar at the tail end or head end of the sola...

Embodiment 3

[0065] This embodiment discloses a method for preparing a solar cell module, comprising the following steps:

[0066] Step 1: Connect the battery slices into a solar battery string through soldering strips;

[0067] Step 2: Connect the solar cell string with the solder ribbon on the back of the solar cell string at the beginning or end of the battery sheet to the bus bar. When connecting, the bus bar and the battery sheet are overlapped;

[0068] Step 3: Leave a certain distance c between the solar cell string ribbon at the end of the light-receiving surface or the first end of the solar cell and the bus bar to obtain a string of solar cell strings;

[0069] Step 4: Repeat steps 1-3 to get multiple strings of solar cells;

[0070] Step 5: Place multiple strings of solar cell strings in dislocation, the length of the dislocation of adjacent solar cell strings is f, and connect them by bus bars to form a solar cell string group;

[0071] Step 6: Lay the solar cell strings on t...

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Abstract

The invention relates to a solar battery string, a battery module and a preparation method thereof, belonging to the technical field of solar batteries, and solves the problem that the technique of increasing the effective power generation area of ​​a solar module in the prior art needs to repurchase a whole set of equipment and set up a new mold, resulting in high input costs The problem. The solar battery string includes at least two battery slices, a ribbon connecting the battery slices, and a bus bar connected to the ribbon. The bus bar includes a first bus bar and a second bus bar; The end or tail end cells overlap with the first section of the bus bar, and the solar cell string ribbon is connected to the second section of the bus bar at the end or the first end of the light-receiving surface. The solar cell assembly includes at least two strings of the above-mentioned solar cell strings, multiple strings of solar cell strings are arranged in dislocation, and adjacent solar cell strings are connected by bus bars. The invention realizes the low-cost improvement of the effective power generation area of ​​the solar module.

Description

technical field [0001] The invention relates to the technical field of solar cells, in particular to a solar cell string, a cell component and a preparation method thereof. Background technique [0002] At present, the entire cell is connected by several thin grid lines and the main grid line, and the main grid line acts as a confluence to lead out the current generated by the entire battery sheet, such as figure 1 shown. [0003] The existing method of serial connection between solar cells is to use welding ribbons to connect the positive and negative poles of the busbars of each adjacent two pieces together. The back of the battery sheet is welded, there is a gap area of ​​about 2mm between two adjacent battery sheets, and the adjacent solar cell strings are connected by a bus bar, and there is also a gap area of ​​about 3mm between the end of the battery string and the bus bar. The above gap area increases the area of ​​the photovoltaic module, resulting in waste of the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L31/05H01L31/02
CPCH01L31/0201H01L31/0504Y02E10/50
Inventor 陈斌尹海鹏张文芮
Owner 晶澳(扬州)新能源有限公司
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