Monocell, packaging film, solar cell module and manufacturing method thereof

A solar cell and packaging film technology, applied in the field of solar cells, to achieve the effects of ensuring peeling performance, solving metal wire offset, and ensuring electrical contact

Pending Publication Date: 2021-06-25
TONGWEI SOLAR HEFEI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] This application proposes a single cell sheet, packaging film, solar cell module and its manufacturing method, thereby achieving improvement or even solving the problem of using soldering strips for welding operations when making solar cell modules, while ensuring good current collection ability

Method used

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  • Monocell, packaging film, solar cell module and manufacturing method thereof
  • Monocell, packaging film, solar cell module and manufacturing method thereof
  • Monocell, packaging film, solar cell module and manufacturing method thereof

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Embodiment Construction

[0046] A single solar cell is usually not directly used as a power source due to factors such as its output voltage. Therefore, when used as a power source, several single cells need to be connected in series or in parallel, and then tightly packaged into components.

[0047] In addition, due to the difference in the electrical performance of individual solar cells, and considering the need to output power stably as a whole, in addition to connecting multiple single cells in series and parallel, other electrical devices can also be installed as required.

[0048] Among them, the quality of packaging is directly related to the final performance of the battery module. An important step in the packaging process is to connect individual cells in series and parallel.

[0049] At present, the production process of solar modules is to connect the "solder ribbon" with multiple "single-chip cells" according to the positive and negative electrodes. That is, one end of the ribbon is co...

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Abstract

The invention discloses a single cell, a packaging film, a solar cell module and a manufacturing method thereof and belongs to the field of solar cells. The encapsulation film is a finished product of a hot melt material capable of cross-linking. The packaging film comprises a body part which is not crosslinked, and a pre-crosslinking part which is not completely crosslinked and is formed in a partial region in the body part. When the packaging film is heated, the fluidity of the pre-crosslinking part is smaller than that of the body part. By utilizing the packaging film, a problem caused by welding operation can be avoided, and meanwhile, a problem of deviation of metal wires on the surface of a battery in the assembly of the solar battery can also be avoided.

Description

technical field [0001] The present application relates to the field of solar cells, in particular, to a single cell sheet, a packaging film, a solar cell module and a manufacturing method thereof. Background technique [0002] Solar power generation is a green and environmentally friendly energy technology, which has developed rapidly in recent years, and various new technologies have emerged in an endless stream. Among them, the crystalline silicon heterojunction battery (HJT) has excellent characteristics such as structural symmetry, low-temperature manufacturing process, high opening voltage circuit characteristics, and good temperature characteristics. [0003] Considering the electrical properties such as the output voltage of a single battery, it is generally used by assembling multiple batteries into a battery assembly. The manufacturing process of solar modules is: connect the "solder ribbon" and "single-chip battery" according to the positive and negative electrode...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/048H01L31/05H01L31/18
CPCH01L31/0481H01L31/0504H01L31/1876Y02P70/50Y02E10/50
Inventor 孙虎朱保保孙俊李岩石刚
Owner TONGWEI SOLAR HEFEI
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