BTRY raises USD 5.7 million to industrialize ultra-thin solid-state batteries

Swiss startup BTRY AG has closed a USD 5.7 million oversubscribed seed round to scale production of its ultra-thin solid-state batteries. The company develops compact, fast-charging, and temperature-resistant cells designed for connected labels, sensors, and wearables.

BTRY’s thin-film solid-state batteries combine rapid charging, temperature stability, and nonflammable safety in one of the world’s thinnest formats. Drawing from semiconductor production methods, the company has engineered batteries that outperform conventional lithium-ion cells. They operate safely at temperatures up to 150°C, where standard cells degrade or catch fire, and can fully charge within one minute—directly powering wireless transmissions without additional components.

The new funding will support the transition from lab-scale production to industrial roll-to-roll manufacturing. BTRY is now focusing on setting up its production lines, refining industrial processes, and securing integration agreements for upcoming device generations.

Targeting high-value applications such as connected labels, industrial sensors, and light consumer electronics, BTRY addresses power supply needs where miniaturization and durability are crucial. Its solvent-free production process also minimizes material waste, offering a more sustainable approach to battery manufacturing.

Developed in Switzerland, the engineering startup has been ranked among the Top100 Swiss Startups, won Venture Kick, and participated in Venture Leaders. Aiming at global markets, BTRY introduces a new step in compact and reliable energy storage.

“Venture Kick gave us the kick we needed to grow. The program challenged us to define our market, sharpen our story, gain visibility, and gave us the confidence to move fast," highlighted Co-founder and CEO Moritz Futscher. "Venture Leaders was a great experience connecting with fellow entrepreneurs and leading investors, exchanging insights and receiving valuable feedback that helped us refine our fundraising strategy and think bigger about scaling BTRY.”


BTRY team picture