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Perovskite solar cell module consisting of 25 battery cells
"Solliance", a European-related technology alliance of thin-film solar cells, announced that it has developed a perovskite solar cell module about 15cm square. The module conversion efficiency is 10%, which is very high in the same area module. The opening area is 168cm2, close to 13cm square.
This module is manufactured by forming a thin film such as an active layer on a glass substrate by using a doctor blade coating process, and then patterning the 25 battery cells with a laser. Each cell is connected in series using Solliance's unique wiring technology.
The key point of this technology is that almost any perovskite solar cell module with a conversion efficiency of about 10% can be produced by connecting a plurality of battery cells.
At present, the highest conversion efficiency of perovskite solar cells is 22.1%, which was developed by Korea Research Institute of Chemistry (KRICT) and University of Ulsan, South Korea (UNIST), but its cell area is only 0.1cm2. If you increase the area of ​​cells and modules, the conversion efficiency will be reduced.
Solliance plans to use this new technology as a basis to improve its conversion efficiency. The organization said, "We are confident that more than 15% of module efficiency will be achieved in the near future." (Reporter: Nozawa Tetsuo)
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