Innovative Approaches to Interconnect Back-Contact Cells

Autor: Govaerts, J., Borgers, T., Voroshazi, E., Jambaldinni, S., O’Sullivan, B., Singh, S., Debucquoy, M., Szlufcik, J., Poortmans, J.
Jazyk: angličtina
Rok vydání: 2016
Předmět:
DOI: 10.4229/eupvsec20162016-1ap.1.2
Popis: 32nd European Photovoltaic Solar Energy Conference and Exhibition; 1-4
This paper reports on a novel and highly innovative technology to interconnect back-contact cells. First a background section explains the currently developed interconnection technologies. Then our novel concept is introduced: interconnection of the cells is achieved with a woven fabric, combining both conductive wires, needed for the interconnection, and insulating wires, crucial to avoid shunting between both polarities at the backside of the cell. Weaving also allows out-of-plane stress relief features. In the third section, we explain that our technology combines the advantages of multi-wire interconnection such as low-stress and reduced resistive losses with known and low-cost materials of traditional module assembly. We demonstrate that the technology can be tuned broadly in terms of costs and resistive losses using an optimized interconnection pattern. These loss simulations are also validated with the measured additional resistance in IBC test samples. Finally, first functional proof-of-concept with MWT cells as well as IBC cells have been fabricated.
Databáze: OpenAIRE