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Presentation:	5CV.3.45 Development of Conductive Back-Sheet for Manufacture of PV Modules with Back-Contact Cells
Type:	Visual
Date:	Wednesday, 26th September 2018 15:15 - 16:45
Location / Room:	SQUARE - Brussels Meeting Centre Level -2 / Grand Hall
Author(s):	I.J. Bennett
Presenter / Speaker:	I.J. Bennett, DSM Innovation, Geleen, Netherlands
Event:	Conference
Session:	5CV.3 PV Module Design,Manufacture,Performance and Reliability/Inverters and Balance of System Components/Sustainability and Recycling
Type(s) of Access:	C Conference Registration
Topic:	5. 1 PV Module Design, Manufacture, Performance and Reliability
Summary / Abstract:	Modules with back-contact cells are considered to be amongst the modules with the highest power output when compared to modules manufactured with more conventional cells [1]. Back-contact cells include MWT and IBC, with IBC cells showing the highest performance in the record tables [2]. Manufacturing modules with back-contact cells can be simplified by using a conductive back-sheet [3]. In this paper development of a conductive back-sheet with the necessary properties for high quality module manufacture is introduced. Innovative solutions for improving the quality of the conductive back-sheet will be discussed. Topics covered include an investigation into the residual stresses in the conductive back-sheet laminate and how these can be minimized resulting in a foil with a flatness suitable for module manufacture. A comparison of different solution for the replacement of copper in the conductive back-sheet with aluminium are covered including evaluation of the corrosion resistance of the metal layers in a module during reliability testing and the effect of the choice of the metal layer on the adhesion properties between the metal and the conductive adhesive use to contact the cells. A road-map for further developments will also be presented.