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Photovoltaic glass material, and preparation method and application thereof

A photovoltaic glass and photovoltaic module technology, applied in the field of solar cells, can solve the problem of low photovoltaic power generation of photovoltaic modules, and achieve the effects of increasing power generation, reducing working temperature and slowing down aging.

Inactive Publication Date: 2016-05-25
JINKO SOLAR CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing photovoltaic glass cover plate is not conducive to the photoelectric conversion of the battery, which makes the photovoltaic power generation of photovoltaic modules lower

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0035] The present invention provides a method for preparing the photovoltaic glass material described in the above technical solution, which includes the following steps:

[0036] SiO 2 , Al 2 O 3 , CaO, alkali metal oxides, iron oxides and tungsten oxide are mixed, and then melted, shaped and annealed in sequence to obtain photovoltaic glass materials.

[0037] The preparation method provided by the invention only needs to use tungsten oxide as one of the glass components, mix with other components, and adopt a mature glass preparation process to obtain photovoltaic glass. Compared with the prior art, there is no need to provide an infrared reflective film on the outer film of the glass cover, which reduces the production process and cost of the product.

[0038] The photovoltaic glass material prepared by the present invention enables the infrared band to be reflected in the glass, avoids direct contact between the solar cell and most of the infrared light, and does not increase t...

Embodiment 1

[0057] SiO 2 75 parts, Al 2 O 3 0.5 parts, CaO3.5 parts, K 2 O16 parts, Na 2 O3 parts, FeO0.001 parts and Fe 2 O 3 0.001 part and 0.1 part of tungsten oxide are mixed and melted in a glass melting furnace at 1500° C. for 45 minutes to obtain a molten material; then the molten material is calendered and annealed to obtain a photovoltaic glass cover.

[0058] In the present invention, the photovoltaic glass cover plates prepared in Example 1 and Comparative Example are measured for the light transmittance of 400-1100nm. The measurement results are shown in Table 1. Table 1 shows the photovoltaic glass covers prepared in Examples 1 to 3 and Comparative Examples. Test results of light transmittance of the board:

[0059] Table 1 Transmittance test results of photovoltaic glass cover plates prepared in Examples 1 to 3 of the present invention and comparative examples

[0060] Glass type

Example 1

Example 2

Example 3

Comparative example

Light transmittance (400~1100nm)

91.37％

91...

Embodiment 2

[0070] SiO 2 55 copies, Al 2 O 3 2 parts, CaO11 parts, K 2 O10 parts, Na 2 O3 parts, FeO0.003 parts and Fe 2 O 3 0.005 part and 0.01 part of tungsten oxide are mixed, and melted in a glass melting furnace at 1500°C for 45 minutes to obtain a molten material; then the molten material is calendered and annealed to obtain a photovoltaic glass cover.

[0071] In the present invention, the photovoltaic glass cover plates prepared in Example 2 and Comparative Example were measured for the light transmittance of 400-1100 nm, and the measurement results are shown in Table 1.

[0072] The photovoltaic glass cover plate is applied to a photovoltaic module to obtain a photovoltaic module; the photovoltaic module includes a photovoltaic glass cover plate with a thickness of 3.2 mm, an ethylene-vinyl acetate copolymer resin film with a thickness of 0.45 mm, and a thickness of 200 μm, which are sequentially contacted Crystal silicon cell and 0.5mm TPT backplane.

[0073] The present invention meas...

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Abstract

The invention provides a photovoltaic glass material, and a preparation method and an application thereof. The glass material comprises, by weight, 55-85 parts of SiO2, 0.5-2 parts of Al2O3, 3.5-11 parts of CaO, 13-19 parts of alkali metal oxide, 0-0.01 parts of iron oxide and 0.01-2 parts of tungsten oxide. The material comprises tungsten oxide, and compatibility of tungsten oxide and other components makes the transmittance of a far-infrared waveband be reduced, so the photoelectric conversion of a battery is facilitated, and the electricity generating capacity of a photovoltaic assembly is improved; and the working temperature of the produced photovoltaic assembly is also reduced, so the photovoltaic assembly can be well protected, and ageing of the photovoltaic assembly is alleviated. The average output power of the photovoltaic glass material under a light intensity of 1000W / m<2> is 256.8-257.1W; the average electricity generating temperature of 5 photovoltaic assemblies in outdoor for 30d is 36.7-37.5DEG C; and the accumulated electricity generating capacity is 109.2-110.8KWh.

Description

Technical field [0001] The invention relates to the technical field of solar cells, in particular to a photovoltaic glass material, its preparation method and its application. Background technique [0002] With the adjustment of the country's new energy industry policy, clean energy such as wind energy and solar photovoltaic power generation has received more and more attention and application. Among them, solar photovoltaic power generation is based on the principle of photovoltaic effect, using solar cells to directly convert solar energy into electrical energy. Solar photovoltaic power generation will occupy an important seat in the world's energy consumption in the near future. It will not only replace some conventional energy sources, but also become the main body of the world's energy supply. It is estimated that by 2030, renewable energy will account for more than 30% of the total energy structure, and solar photovoltaic power generation will account for more than 10% of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C3/087H01L31/048
CPCY02E10/50
Inventor 刘亚锋刘增胜陈章洋金浩
Owner JINKO SOLAR CO LTD
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