Successful funding round for Empa-ETH spin-off: $ 5.7 million to industrialize ultra-thin solid-state batteries
Dübendorf, 06.11.2025 — Swiss battery start-up BTRY AG has raised $ 5.7 million in an oversubscribed seed round. The funds will accelerate the industrialization of its ultra-thin solid-state batteries – a new category of energy storage combining fast charging, extreme temperature stability, and intrinsic safety in one of the world’s thinnest formats. They power next-generation devices such as connected labels, wireless sensors, and wearables – applications where conventional batteries could not fit or endure.
