Double-sided glass BIPV (Building Integrated Photovoltaic) assembly

A photovoltaic module and double-sided glass technology, applied in photovoltaic power generation, electrical components, semiconductor devices, etc., can solve the problems of short service life of TPT materials, inability to meet the needs of light transmission, short service life of photovoltaic modules, etc., and achieve anti-yellowing Enhanced denaturation performance, extended life, and low cost

Inactive Publication Date: 2017-07-25
WUXI SAIJING SOLAR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The disadvantages of the TPT material used in the prior art are that the service life of the TPT material is short and opaque, which leads to a short service life of the photovoltaic module and cannot meet the needs of customers for light transmission.
In addition, EVA film is currently the main material used to encapsulate solar cells, but it has some shortcomings, such as easy yellowing and aging, poor weather resistance, and short service life.

Method used

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  • Double-sided glass BIPV (Building Integrated Photovoltaic) assembly

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Embodiment Construction

[0009] The present invention will be further described below in conjunction with the accompanying drawings.

[0010] A double-sided glass BIPV photovoltaic module of the present invention comprises a silicon wafer cell 1, a PET / POE composite film 2 is packaged on the upper and lower surfaces of the silicon wafer cell, and a p- / n-type polysilicon absorbing layer 3, under the PET / POE composite film on the lower surface, there is an n+ / p+ type a-Si:H emitting layer 4, above the p- / n-type polysilicon absorbing layer and n+ / p+ type a - Si:H emission layers are provided with photovoltaic glass 5 below, and the outer surface of the photovoltaic glass is provided with a radiation-proof metal film 6 .

[0011] The PET / POE composite film is composed of a PET base film and a modified POE film, the thickness of the PET base film 1 is 15 μm-30 μm; the modified POE film 2 The thickness is 5 μm-10 μm.

[0012] There are many specific application approaches of the present invention, and th...

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Abstract

The invention provides a double-sided BIPV (Building Integrated Photovoltaic) assembly, which comprises a silicon wafer cell, and is characterized in that a PET / POE composite film is packaged at the upper surface and the lower surface of the silicon wafer cell, a p- / n- type polycrystalline silicon absorption layer is arranged on the PET / POE composite film at the upper surface, and an n+ / p+ type a-Si:H emission layer is arranged below the PET-POE composite film at the lower surface; photovoltaic glass is arranged on the p- / n- type polycrystalline silicon absorption layer and below the n+ / p+ type a-Si:H emission layer, and the outer surface of the photovoltaic glass is provided with an anti-radiation metal film. The double-sided glass BIPV assembly is simple in process, high in weather resistance, enhanced in anti-yellowing performance, excellent in performance and low in cost.

Description

technical field [0001] The invention relates to the field of photovoltaic modules, in particular to a double-sided glass BIPV photovoltaic module. Background technique [0002] Solar cells are semiconductor devices that use sunlight to generate electricity. Solar cell chips can be single-node or multi-node stacked silicon-based thin-film solar cells of amorphous silicon, amorphous silicon germanium, microcrystalline silicon or nanocrystalline silicon, CIGS solar cells , copper indium tin solar cells, copper indium sulfur solar cells, monocrystalline or quasi-monocrystalline silicon solar cells, polycrystalline silicon solar cells, cadmium telluride solar cells, gallium arsenide solar cells, organic solar cells, dye-sensitized solar cells, etc. The disadvantages of the TPT material used in the prior art are that the service life of the TPT material is short and opaque, which leads to a short service life of the photovoltaic module and cannot meet the needs of customers for li...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/048H01L31/054
CPCH01L31/048H01L31/0488H01L31/054Y02A30/60Y02B10/10Y02E10/52
Inventor 蒋建宝
Owner WUXI SAIJING SOLAR
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