The STRINGER TT1600 ECA uses new adhesive technology and low process temperatures to join high-efficiency bifacial HJT (heterojunction) cells. This process reduces thermal and mechanical stress on the sensitive cells and results in a high string quality.
teamtechnik, a worldwide technology leader in stringer systems for connecting solar cells, based in Germany with subsidiaries in China, has developed the process itself and brought it successfully to market. The Stringer TT1600 ECA is designed for reliable series production with high unit volumes. The production system connects HJT cells with light-capturing ribbons (LCRs) at a cycle rate of 2.25 seconds.
The finished product is a solar module that is designed for extremely high performance and long life.ECA is an abbreviation for "electrically conductive adhesive". In this process a conductive glue is applied to both sides of the cell using a screen-printing technique. It is then fully cured at a temperature of roughly 160ºC together with the LCRs.
On stand E3 365 at SNEC 2018 teamtechnik will also be exhibiting its two high-performance systems, the Stringer TT2100 and TT4200GIGA with IR light-based soldering technology for mass production of high-quality solar cell strings with monocrystalline, polycrystalline and PERC solar cells.
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