Fraunhofer Institute for Solar Energy Systems ISE
Module-TEC offers extensive facilities to develop module technology. It fills the gap between laboratory development and industrial production technology by allowing relevant charge numbers and formats to be processed. In addition to production and processing technology, numerous analytical facilities are available for quality control. Our research is concentrating on connection technology for crystalline solar cells, integration of high-efficiency cells into modules and the analysis and optimization of module efficiency. In parallel, we are developing application-specific customized modules for building integration (BIPV) and integration into vehicles.
Innovative Adhesive Connections
A state of the art industrial stringer with infrared soldering technology is available for series connection of crystalline solar cells. The equipment is able to produce contacts with three, four or five busbars on solar cells. In addition, half-cells can be connected fully automatically with a high throughput.
In addition to the commercially widespread process for soldered contacts, the stringer offers a gentler, fully automated process for contacting solar cells with electrically conductive adhesives (ECA). This innovative concept of adhesive connection is particularly suitable for temperature-sensitive high-efficiency cells, such as hetero-junction solar cells. A technically sophisticated cell-holding concept combined with IR radiation allows contact-free and mechanically low-stress processing of the cells at industrial throughput rates.