Electrically Conductive Adhesives as Cell Interconnection Material in Shingled Module
Correct electrically conductive adhesives in combination with an accurate stringing assembly tool, offers a great potential for shingled module technology
Shingled modules, in which pre-cut crystalline silicon solar cells are assembled into solar modules by placing them one by one on top of each other, have gained a lot of market attention in the last year. The shingling approach has as main advantage increased module output due to more efficient packing without inactive space between cells. An additional benefit is that no important modifications to the cell production process are needed. The first commercial market-available modules are use electrically conductive adhesives (ECAs) to connect the pre-cut cells or shingles into strings. This paper will demonstrate that using ECAs with optimized properties will result in reliable solar modules. Adhesive properties such as adhesion strength, Young’s modulus, volume resistivity and contact resistance are shown in combination with the reliability data of ECA-assembled modules. Application techniques suitable for high-volume manufacturing are demonstrated.
L.Theunissen1,a), B. Willems1 , J. Burke1 and A. Henckens1
D. Tonini2, and M.Galiazzo2
1 Henkel, Nijverheidsstraat 7, 2260 Westerlo, Belgium.
2 Applied Materials Italia Srl, Via Postumia Ovest 244, Olmi di San Biagio di Callalta (TV) Italy
a) Corresponding author: liesbeth.theunissen@henkel.com
