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ECN publicatie:
Local deposition of copper on aluminum based MWT back contact foil using cold spray technology
Gepubliceerd door: Publicatie datum:
ECN Zonne-energie 28-10-2013
ECN publicatienummer: Publicatie type:
ECN-M--13-042 Conferentiebijdrage
Aantal pagina's: Volledige tekst:
4 Download PDF  (336kB)

MWT cell and module technology has been shown to result in modules with up to 5% higher power output than H-pattern modules [1] and to be suitable for use with thin and fragile cells. In this study, the use of a low cost conductive back-sheet with aluminium as the current carrier in combination with locally applied copper (5 to 30 µm) using the cold spray method is benchmarked against a standard PVF-PET-copper foil in 2 x 2 cell modules. Cell to module losses and reliability during climate chamber tests according to IEC61215 ed. 2, are comparable to module made with the standard foil. Optimizing the cold spray process can result in a cost reduction of more than a factor 10 of the current carrying component, when compared to a full copper conductive back–sheet foil.

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