Packaging structure and packaging method of solar cell

A technology of solar cells and encapsulation structures, applied in the field of solar cells, can solve problems such as power attenuation, inconclusive matters, difficulty in guaranteeing super long battery life, etc., and achieve the effect of improving service life and reducing power attenuation

Pending Publication Date: 2020-07-21
DONGJUN NEW ENERGY CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing packaging structure of solar cells often only considers to prevent water vapor from penetrating into the battery, but often things are inconclusive. Long-term use cannot completely prevent the battery chip from being corroded by water vapor, and it is difficult to guarantee the ultra-long life of the battery. Attenuation problem

Method used

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  • Packaging structure and packaging method of solar cell
  • Packaging structure and packaging method of solar cell
  • Packaging structure and packaging method of solar cell

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Embodiment Construction

[0027] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0028] A solar cell packaging structure provided in this embodiment includes a photovoltaic backsheet 6, a solar cell chip 4, and a photovoltaic front sheet 1 stacked sequentially from bottom to top, and a solar cell chip 4 and a photovoltaic front sheet A first PVA film 2 between the plates 1 .

[0029] In this embodiment, optionally, when the first PVA film 2 is set between the solar cell chip 4 and the photovoltaic front plate 1, the encapsulant film set between the solar chip 4 and the photovoltaic back plate 6 can be selected from One of EVA (polyethylene-polyvinyl acetate copolymer) film, POE (ethylene-α-olefin copolymer) film or PVB (polyvinyl butyral) film. The first PVA film 2 between the battery chip 4 and the ...

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Abstract

The invention discloses a packaging structure and a packaging method of a solar cell. The packaging structure comprises a photovoltaic back plate, a solar cell chip, a photovoltaic front plate and a first PVA film arranged between the solar cell chip and the photovoltaic front plate, wherein the photovoltaic back plate, the solar cell chip and the photovoltaic front plate are sequentially stackedfrom bottom to top. The packaging method comprises the following steps: performing laminating according to the packaging structure to form a solar module to be laminated, putting the solar module to be laminated into a laminating machine, and forming a whole through a heating stage, a vacuumizing stage, a first pressurizing stage, a second pressurizing stage, a third pressurizing stage and a cooling stage. According to the packaging structure and the packaging method, the influence of water vapor erosion on the solar cell chip can be reduced, the service life of the solar cell is prolonged, and the power attenuation of the solar cell module in the use period is reduced.

Description

technical field [0001] The invention relates to the technical field of solar cells, in particular to a solar cell packaging structure and packaging method. Background technique [0002] Since the solar cell chip is susceptible to the influence of external temperature, humidity and oxygen after preparation, if it is not packaged, especially if it is used in the air for a long time, it is vulnerable to water vapor erosion and oxygen oxidation insulation and corrosion perforation, resulting in a short circuit of the battery or an increase in internal resistance. Efficiency is reduced, which shortens battery life. [0003] Therefore encapsulation is the main factor that determines battery life, the encapsulation structure of existing solar cell, such as figure 1 As shown, 100-frosted protective film, 200-adhesive layer, 300-water blocking film, 400-front packaging film, 500-thin film battery chip, 600-rear packaging film, 700-photovoltaic backplane. However, the existing packa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/048B32B37/06B32B37/10
CPCB32B37/06B32B37/1009B32B2457/10B32B2457/12H01L31/0481Y02E10/50
Inventor 陶海全方振雷杨成涛刘鑫
Owner DONGJUN NEW ENERGY CO LTD
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