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Lightweight and flexible photovoltaic module comprising a front layer consisting of a polymer and a rear layer consisting of a composite material

A technology of photovoltaic modules and composite materials, applied in photovoltaic power generation, layered products, electronic equipment, etc., can solve the problems of photovoltaic cells being susceptible to shock and mechanical load, and achieve the effect of excellent mechanical and thermal mechanical properties

Pending Publication Date: 2021-01-05
COMMISSARIAT A LENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when only replacing glass with this thin polymer sheet is considered, photovoltaic cells become very vulnerable to impact and mechanical loads

Method used

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  • Lightweight and flexible photovoltaic module comprising a front layer consisting of a polymer and a rear layer consisting of a composite material
  • Lightweight and flexible photovoltaic module comprising a front layer consisting of a polymer and a rear layer consisting of a composite material
  • Lightweight and flexible photovoltaic module comprising a front layer consisting of a polymer and a rear layer consisting of a composite material

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Embodiment Construction

[0074] figure 1 and figure 2 It has already been described in the section relating to the state of the art.

[0075] image 3 and Figure 4 An embodiment of a photovoltaic module 1 according to the invention is shown in cross-section and exploded view.

[0076] Photovoltaic cells 4 interconnected by soldered tin-plated copper ribbons may be considered here as "crystalline" cells, ie comprising monocrystalline or polycrystalline silicon and having a thickness between 1 μm and 250 μm.

[0077] In addition, the encapsulant assembly 3 is selected to be made of two layers of ionomer, between which a photovoltaic cell 4 is arranged, and the thickness of each layer is less than 50 μm.

[0078] Advantageously, the invention provides for a specific choice of materials forming the front and rear faces of the photovoltaic module 1 in order to obtain a weight per unit area of ​​less than 1 kg / m 2 , and preferably less than 0.8kg / m 2 , or even lower than 0.6kg / m 2 ultra-light photo...

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Abstract

The invention relates to a lightweight photovoltaic module (1) comprising: a transparent first layer (2) forming the front face, photovoltaic cells (4), an assembly (3) encapsulating the photovoltaiccells (4), and a second layer (5), the encapsulating assembly (3) and the photovoltaic cells (4) being arranged between the first (2) and the second (5) layer. The invention is characterised in that the first layer (2) comprises a polymer material and has a thickness (e2) of less than 50 [mu]m, in that the second layer (5) comprises at least one composite material of the prepreg type containing polymer resin and fibres and has a areal weight of less than 150 g / m<2>, and in that the encapsulating assembly (3) has a maximum thickness (e3) of less than 150 [mu]m.

Description

technical field [0001] The invention relates to the field of photovoltaic modules comprising an assembly of photovoltaic cells electrically connected to each other, and preferably so-called "crystalline" photovoltaic cells, ie photovoltaic cells based on monocrystalline or polycrystalline silicon. [0002] The invention can be implemented for a variety of applications, such as stand-alone and / or on-board applications, especially applications requiring the use of flexible, glass-free and ultra-light photovoltaic modules, in particular with a weight per unit area of ​​less than 1 kg / m 2 , and especially below 800g / m 2 , or even below 600g / m 2 , and the thickness is small, especially less than 1mm. It can therefore be used especially in buildings such as residential or industrial premises (tertiary, commercial, ...), for example for the manufacture of roofs, for the design of street furniture, for example for public lighting, road signs or for electric Car charging, or even fo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/049H01L31/048
CPCH01L31/048H01L31/0481H01L31/049Y02E10/50B32B2457/12C08J5/244B32B2307/732C08J2363/00H01L31/18B32B7/12B32B9/045
Inventor 朱利安·高姆托马斯·格林Y·维舍蒂
Owner COMMISSARIAT A LENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES