BTRY provides ultra‑thin (0.1 mm) flexible solid‑state batteries that can be fully charged and discharged in one minute, operate reliably up to 150 °C, and deliver high‑power bursts without flammable liquids. The roll‑to‑roll foil format integrates directly into device substrates, enabling compact, fast‑charging power sources for IoT sensors, medical wearables, and consumer electronics while offering scalable, cost‑effective manufacturing.
Funding
$5.7M raised to dateRaised to date based on public sources. This may differ from the amount the company actually raised and is based only on what is publicly available on the internet.



BVKFK+4Founders
Product
Problem
Current energy storage options for IoT, medical wearables, and consumer electronics are limited by bulk, slow charging, low temperature tolerance, and safety concerns, which restrict device form factor, autonomy, and reliability.
Solution
BTRY offers an ultra‑thin (0.1 mm), flexible solid‑state battery that can be fully charged and discharged in one minute. The cells operate reliably up to 150 °C and provide high‑power bursts without flammable liquids, enabling safe deployment in harsh or sterilizable environments. Production uses a semiconductor‑derived, roll‑to‑roll process that reduces manufacturing steps by 60 % and leverages off‑the‑shelf equipment, making the technology scalable and cost‑effective. Batteries are supplied as continuous foils that can be integrated directly into device substrates or rolled into cylindrical forms, allowing designers to eliminate traditional battery packages. The fast‑charging capability also supports energy‑harvesting schemes, delivering maintenance‑free operation for years of autonomous use.
Target Audience
Primary customers are manufacturers of ultra‑compact IoT sensors, medical wearables/implants, and next‑generation consumer electronics that require thin, fast‑charging, and high‑temperature‑tolerant power sources.
Features
- 0.1 mm thin, bendable film cells with a minimum bending radius of 1 mm
- Solid‑state chemistry eliminates flammable liquids; cells remain functional even when cut
- One‑minute full charge and discharge cycles with high‑power peak capability
- Stable operation from
- to 150 °C, suitable for industrial sensors and autoclave‑sterilized medical tools
- Up to 1,000 charge‑discharge cycles, extending device lifetime
- Roll‑to‑roll foil format compatible with existing high‑speed manufacturing lines
- Scalable production using a single off‑the‑shelf semiconductor equipment platform, cutting process steps by 60 %