Solar cell module

A technology for solar cells and components, applied in the field of solar cells, can solve problems such as PID, and achieve the effect of avoiding PID phenomenon and ensuring normal power output.

Active Publication Date: 2014-03-19
YINGLI ENERGY CHINA
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0003] The present invention aims to provide a solar cell assembly to solve the problem of PID phenomenon in the solar cell assembly in the prior art

Method used

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  • Solar cell module

Examples

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example 1

[0033] Example 1: A 30 μm silicon nitride layer is deposited on the backlight surface of the glass layer 50 by LPCVD (low pressure chemical vapor deposition), and its average light refractive index n measured in the wavelength range of 300 nm to 1150 nm is 2.01.

example 2

[0034] Example 2: A silicon nitride layer of 25 μm was deposited on the backlight surface of the glass layer 50 by APCVD (atmospheric pressure chemical vapor deposition), and its average light refractive index n was 1.98 measured in the wavelength range of 300 nm to 1150 nm.

example 3

[0035] Example 3: Deposit a layer of 20 μm silicon oxide layer on the backlight surface of the glass layer 50 by thermal oxidation, and then deposit a layer of 30 μm silicon nitride layer on the surface of the silicon oxide layer by LPCVD. The average light refraction index is 1.95.

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Abstract

he invention provides a solar cell module. The solar cell module comprises a backboard layer (10), a first packaging material layer (20), a cell sheet layer (30), a second packaging material layer (40) and a glass layer (50) which are successively superposed. The solar cell module also comprises a barrier layer (60) used for preventing metal cations of the glass layer (50) from entering into the cell sheet layer (30). The barrier layer (60) is arranged between the glass layer (50) and a second packaging material layer (40). By using the solar cell module of the invention, a problem of a PID phenomenon existing in the solar cell module in the prior art is effectively solved.

Description

technical field [0001] The present invention relates to the technical field of solar cells, in particular to a solar cell component. Background technique [0002] Solar energy, as an emerging green renewable energy, has the characteristics of zero carbon dioxide emissions and inexhaustible energy sources. Solar cell module power generation can effectively reduce carbon dioxide emissions, and its position in the global energy strategy is becoming more and more important. With the continuous increase in the scale of photovoltaic power plants, the differences and uncertainties in the installation and use environments have led to a series of problems such as the reduction of power generation of power plants and the decline in the power of solar cell modules. As one of the causes of power degradation of solar cell modules, the phenomenon of potential induced degradation (PID) has attracted widespread attention. In 2005, Sunpower, a famous American photovoltaic manufacturer, fou...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/048H01L31/0216
CPCY02E10/50H01L31/02167H01L31/0481
Inventor 倪健雄李高非韩帅陈坤万志良
Owner YINGLI ENERGY CHINA
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