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Connection method of conducting glue capable of being online transformed into glue film in time and solar cell piece

A solar battery sheet and connection method technology, which is applied in the field of conductive adhesives, can solve the problems of low light conversion power, low component reliability, and large overlapping area, and achieve the effects of reducing the overlapping area, increasing light conversion power, and enhancing reliability

Active Publication Date: 2018-11-27
彭延岩
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, the object of the present invention is to provide a method for connecting conductive adhesive and solar cells that can form an adhesive film online in time, so as to alleviate the problem of the connection between two adjacent cells in the prior art when the cells are connected. The overlapping area between the units is large, the light conversion power is low, and the technical problems of low component reliability due to insufficient or uneven thickness of the adhesive layer between each point cell unit

Method used

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  • Connection method of conducting glue capable of being online transformed into glue film in time and solar cell piece
  • Connection method of conducting glue capable of being online transformed into glue film in time and solar cell piece
  • Connection method of conducting glue capable of being online transformed into glue film in time and solar cell piece

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Embodiment 1

[0026] According to an embodiment of the present invention, an embodiment of a method for connecting solar cells is provided. It should be noted that the steps shown in the flow chart of the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions, and , although a logical order is shown in the flowcharts, in some cases the steps shown or described may be performed in an order different from that shown or described herein.

[0027] figure 1 is a method for connecting solar cells according to an embodiment of the present invention, such as figure 1 As shown, the method includes the following steps:

[0028] Step S102, covering a plurality of busbar positions on the first working surface of the solar cell with conductive glue to obtain a first target cell, wherein both the first working surface and the second working surface of the solar cell include multiple main grid position.

[0029] It should be noted that the position ...

Embodiment 2

[0069] The embodiment of the present invention also provides a conductive adhesive, which is applied to the above-mentioned method for connecting solar cells. The following is a specific introduction of the conductive adhesive provided by the embodiment of the present invention.

[0070] In the embodiment of the present invention, the conductive glue includes: target resin 10, conductive particles, 20 solvent 30, wherein:

[0071] The proportion of the target resin 10 in the unit weight of the conductive adhesive is 5%-30%;

[0072] The conductive particles 20 include at least one of the following: silver particles, copper particles, and silver-coated particles, wherein the proportion of the conductive particles in the conductive adhesive per unit weight is 45%-85%;

[0073] The solvent 30 is a solvent capable of dissolving the target resin, wherein the proportion of the solvent in the unit weight of the conductive adhesive is 0%-10%.

[0074] Optionally, the conductive adhes...

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Abstract

The invention provides a connection method of conducting glue capable of being online transformed into a glue film in time and a solar cell piece and relates to the technical field of solar power generation. The method comprises the following steps: covering a plurality of main grid positions of a first working surface of the solar cell piece with the conducting glue, so as to obtain a first target cell piece; carrying out first curing treatment on the first target cell piece, so as to obtain a second target cell piece; carrying out cutting treatment on the second target cell piece according to pre-set division lines on the second target cell piece, so as to obtain a plurality of cell piece units; sticking the plurality of cell piece units to obtain a cell string; carrying out second curing treatment on the cell string to obtain a target cell string. By adopting the connection method disclosed by the invention, the technical problems in the prior art that when the cell piece units areconnected, the overlapping area between the two adjacent cell piece units is relatively large, the light illumination conversion rate is relatively low, and the reliability of an imbrication assemblycomposed of the target cell piece is relatively low, caused by the fact that the thickness of a glue layer between each two point battery piece units is not enough or the thickness of the glue layer is not uniform are solved.

Description

technical field [0001] The invention relates to the technical field of solar power generation, in particular to a method for connecting a conductive adhesive capable of being converted into an adhesive film on-line in real time and a solar cell. Background technique [0002] A high-efficiency solar module technology - shingled module is being quickly accepted by the market. This module is composed of multiple solar cell units. There are more battery units, while reducing the series resistance, and the traditional series connection between each battery unit is changed to a series-parallel combination, so that the power and reliability of the shingled module composed of battery strings can be improved. [0003] The current process is to connect each cell unit together to form a battery string by curing the liquid conductive adhesive at one time. Since the liquid conductive adhesive is easy to flow and spread before curing, the colloid is easy to overflow the overlapping area, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/05H01L31/18
CPCH01L31/0508H01L31/0512H01L31/1876Y02E10/50
Inventor 彭延岩
Owner 彭延岩
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