Engineers Unveil Game-Changing Thin-Film Solid-Sate Battery

they are also much more environmentally friendly to manufacture and can be charged in just one minute.The research paper explaining the results has been published in Communications Chemistry.

According to Empa researchers Abdessalem Aribia and Moritz Futscher from Empa’s Thin Films and Photovoltaics laboratory, it is time to rethink battery technology. Compared to other existing or developing technologies, their lithium metal-based solid-state battery brings some significant advantages: It can be charged and discharged within one minute, lasts about ten times as long as a lithium-ion battery, and is insensitive to temperature fluctuations.

Aribia and Futscher now want to bring this promising technology to market. Together with lab head Yaroslav Romanyuk, they have founded a spin-off called BTRY . Aribia, who takes on the role of CTO at BTRY, had never previously thought of starting his own company. CEO Moritz Futscher, on the other hand, has been interested in startups since he was a student. The two researchers have been working together on the battery project for years and are a well-established team.

The high-precision manufacturing method has an additional advantage: “In contrast to the traditional method of battery production, our method does not use toxic solvents,” explained Aribia. However, it also makes the thin-film battery more expensive. The researchers therefore see its application primarily in products where the battery only accounts for a small part of the overall cost of the device – for example, in smartphones and smartwatches or in satellites.

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