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Method of producing solar modules by the roller laminate process

A technology for solar cells and modules, applied in the fields of electrical components, chemical instruments and methods, lamination, etc., can solve the problem of not being able to sufficiently prepare composites with thin-layer solar cell modules on an industrial scale by itself.

Inactive Publication Date: 2008-08-06
KURARAY EURO GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The known methods for producing solar modules with solar cells buried between PVB films are not sufficient on their own for the production of composites with thin-film solar modules on an industrial scale

Method used

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  • Method of producing solar modules by the roller laminate process
  • Method of producing solar modules by the roller laminate process

Examples

Experimental program
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Effect test

Embodiment

[0044] Thin layers were pressed at a temperature of 90 °C (measured after the last pressing tool) and a linear pressure of 35 N / mm each at a feed rate of 3 m / min in the apparatus shown in Figure 1 Module, the thin-layer module has dimensions of 30 cm long x 20 cm wide and a glass thickness of 3.2 mm, and also has two conductive strips with a longitudinal distance of 20 mm from the edge, a width of 2 mm, and a thickness of about 250 μm. The running direction of the complex is chosen so that the outlet of the conductive channel from the module is at the rear and pressed last. As a softener-containing polyvinyl acetal film, roughness R Z Membrane of the Trosifol HR 100 type (Kuraray Europe GmbH) of about 100 μm.

[0045] The line pressure of the pressing tool is to be reduced to the dead weight of the upper roll over the first 10 mm and the last 30 mm of the ply.

[0046] A slightly cloudy, bubble-free laminate was obtained.

[0047] This turbidity can be completely eliminated...

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Abstract

The method involves laminating a layer body, which consists of two carriers, by a intermediate layer foil which is based on softener containing polyvinyl acetal, where a solar cell (S) is attached on one of the carriers. The layer body is guided between a pair of rollers with a temperature of 60 degree Celsius to 150 degree Celsius. The layer body is pressed between the two rollers with a line pressure of 0.5 Newton per millimeter to 100 Newton per millimeter.

Description

technical field [0001] The present invention relates to a process for producing thin-film solar cell modules using a roll lamination method using polyvinyl butyral (PVB)-based films. Background technique [0002] Thin-film solar cell modules generally consist of a photosensitive semiconductor layer (referred to below as a solar cell) which is applied to a mostly transparent sheet, for example by evaporation, vapor deposition, sputtering or wet deposition An optionally likewise transparent covering is arranged on top and for protection against external influences. The solar cells are often laminated by means of an optionally transparent adhesive between a glass pane and a cover pane, for example made of glass. The adhesive must completely enclose the solar cell unit, must be UV stable and completely free of bubbles after the lamination process. [0003] As transparent adhesives, generally cured casting resins or crosslinkable ethylene-vinyl acetate (EVA)-based systems are u...

Claims

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Application Information

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IPC IPC(8): H01L31/18
CPCB29C65/10B29C65/14B29C65/1412B29C65/1425B29C65/5057B29C66/83413B29C66/91445B29C66/919B29C66/92445B29C66/929B29C2035/0822B29K2105/0038B29L2009/00B32B17/10036B32B17/10247B32B17/10761B32B17/10816B32B17/10871B32B37/0053B32B37/18B32B2305/34B32B2309/12B32B2457/12H01L31/048H01L31/18Y02E10/50B29C66/91216B29C66/91221B29C66/91411B29C66/91421B29C66/91423B29C65/4815B29C66/9241B29C66/9292B29C66/73161B29K2995/0072B29C66/45B29K2029/14B29C66/71H01L31/0488B29C66/72326B29C66/723B29C66/72321B29C66/73751B29C66/73755B29C66/7392
Inventor A·卡品斯基B·科尔
Owner KURARAY EURO GMBH
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