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Membrane comprising a solar cell

A technology of solar cells and barrier layers, applied in the field of photovoltaic cells, can solve the problems of solar cells detachment, cavity formation, loosening, etc.

Inactive Publication Date: 2012-09-12
SIKA TECH AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this type of fastening has the disadvantage that the solar cells can detach from the roof surface, especially due to mechanical stress, and cavities can form between them
Subsequent penetration of moisture into these cavities has a particularly detrimental effect on the bonding of solar cells and roof surfaces, in particular by damaging the adhesive and further promoting detachment

Method used

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  • Membrane comprising a solar cell
  • Membrane comprising a solar cell
  • Membrane comprising a solar cell

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Embodiment Construction

[0018] exist figure 1 shows a film 1 comprising a barrier layer 2, a solar cell 4 arranged on one side of the barrier layer and a compensation layer 3 arranged between the solar cell and the barrier layer, wherein the The compensation layer can be a foamed composition of a thermoplastic material which is solid at room temperature or a thermoplastic elastomer which is solid at room temperature.

[0019] In this document the term "membrane" is to be understood as a flat flat object, such as it is known in the construction industry for the sealing of substrates against water penetration, for example, as building seals, especially as roof membranes .

[0020] By "foaming composition" in this document is understood a tissue structure comprising spherical or polyhedral pores bounded by ribs and forming a continuous system.

[0021] Pores / pores in this document are to be understood as cavities in the composition and / or on the surface of the composition which are produced due to man...

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Abstract

In a membrane comprising a barrier layer, a solar cell arranged on one side of the barrier layer, and a compensation layer arranged between the solar cell and the barrier layer, the compensation layer comprises a foamed composition composed of a thermoplastic that is solid at room temperature or a thermoplastic elastomer that is solid at room temperature.

Description

technical field [0001] The invention relates to the field of photovoltaic elements, in particular photovoltaic cells for installation on roofs. Background technique [0002] The mounting of solar cells on roof surfaces by means of adhesives is known. However, this type of fastening has the disadvantage that the solar cells can detach from the roof surface, in particular due to mechanical stress, and cavities can form between them. Moisture then penetrates into these cavities, which has a particularly adverse effect on the bonding of the solar cells and the roof surface, in particular by damaging the adhesive, and further facilitates detachment. [0003] Said stresses are caused in particular by the horizontal and vertical movements of the solar cells and the roof surface relative to each other, especially because the two layers have different coefficients of thermal expansion. Such stresses occur in particular when heated by intense solar radiation or at low outdoor temper...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J9/04H01L31/048
CPCC08J2205/052H01L31/048Y02E10/50H02S20/23H01L31/049Y02B10/10
Inventor S·凯泽A·米歇尔N·布兰科J·吕西H·迈尔
Owner SIKA TECH AG