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Bitterfeld-Wolfen, Germany

Hanwha Q Cells GmbH | Date: 2013-06-07

A solar module with a front side surface and a rear side surface, has a front side encapsulation element which forms the front side surface of the solar module, a multiplicity of solar cells which are connected electrically to one another, a rear side encapsulation element which forms the rear side surface of the solar module with a rear side surface plane and has a polymer plastic film, and at least one plug-in device connecting to a complementary structure. The plug-in device is at least partially laminated into the rear side encapsulation element, in the region of an overlapping section, wherein the rear site encapsulation element has an opening and the plug-in device is arranged at least partially in the opening. The plug-in device projects beyond the rear side surface plane of the solar module by a maximum of 15 mm.

Agency: Cordis | Branch: FP7 | Program: CP | Phase: ENERGY.2010.2.1-1 | Award Amount: 7.02M | Year: 2010

The overall objective of the current project is a significant contribution to the dissemination of PV in order to improve the sustainability of the European energy supply and to strengthen the situation of the European PV industry. The approach to reach this overall objective is the development of solar cells which are substantially thinner than todays common practice. We will reduce the current solar cell thickness of typically 180 m down to a minimum of 50 m. At the same time we target to produce solar cells with high efficiencies in the range of 20% light conversion rate into power. The processes will be optimized and transferred into a pilot production line aiming at an efficiency of 19.5% on wafers of 100 m thickness at a yield that is comparable to the one in standard production lines. This shall help to drive down production costs significantly and save Si resources from todays 8 grams per watt to 3 grams per watt. In more detail the following topics are addressed: Wafering from Si ingots, surface passivation, light trapping, solar cell and module processing and handling of the thin wafers The partners of this project form an outstanding consortium to reach the project goals, including four leading European R&D institutes as well as four companies with recorded and published expertise in the field of thin solar cells and modules and handling of such. The project is structured in 10 work packages covering the process chain from wafer to module and the transfer into pilot production already at mid term as well as integral eco-assessment and management tasks.

Hanwha Q Cells GmbH | Date: 2015-08-28

A solar module rear side encapsulation element having a laminate-type layer construction having at least one polymer plate or polymer foil having a laminate surface. The laminate-type layer construction has at least one protective layer having layer openings. The protective layer covers at least 70% of the laminate surface by a covering area, and due to the layer openings at least 15% and maximum 99.9% of the regions of the solar module rear side encapsulation element lying under the protective layer are covered in the covering area, and the protective layer is formed as a structure made of threads, thus being open to diffusion.

Hanwha Q Cells GmbH | Date: 2014-06-13

A wafer solar cell comprising a semiconductor layer, a back-side emitter layer, a passivation layer arranged on the emitter layer, openings being formed in said passivation layer, and a metallization layer arranged on the passivation layer, wherein the emitter layer, the passivation layer and/or the metallization layer substantially completely covers a solar cell back side, and wherein adjacent to each opening a doping region is formed which extends into the emitter layer and/or into the semiconductor layer and is doped by means of a metal from the metallization layer and/or from the passivation layer. Furthermore, the invention relates to a solar cell production method for producing such a wafer solar cell.

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Hanwha Q Cells back in the black in 2015 Hanwha Q Cells’ revenues rocketed 64% in the fourth quarter, to $700.8m, but sharply higher expenses meant that its profit was nearly halved, dropping to $26.4m from $52.4m last quarter.

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