BEI Corp is a developer of ultra-lightweight battery solutions based on an innovative lithium metal technology that delivers both high energy and high power density. Our products provide UAVs (unmanned aerial vehicles) and robotic vehicles with safer, greener and more efficient power sources, setting a new standard for performance and durability. BEI batteries can extend drone flight times by over 70% while maintaining reliable operation under extreme temperatures, and are ideal for commercial platforms as well as Tier 1 and Tier 2 unmanned systems.
Unique lithium-metal battery technology
Our unique anode-free design, based on cutting-edge materials science, maintains the high performance of lithium metal technology while significantly reducing lithium usage. The result is the first solution of its kind to deliver high energy density as well as power density, with no need to compromise on either. 
We also utilize an ultra-thin protective coating layer that does away with the safety and poor cycle life issues experienced by traditional lithium-ion battery solutions. BEI products are up to 40% smaller and 46% lighter than conventional Li-Po batteries, while offering an extended operating temperature range of -35 to +73oC for the utmost in reliability in any environment.
Conventional
BEI Solution
Our batteries have also been successfully tested to UN 38.3 requirements, ensuring that they can be transported safely by air, land or sea. The comparison video below shows nail penetration testing on a conventional Li-ion battery (left) and a BEI battery (right). Our product continues to provide power even after the multi-layer large format cell has been penetrated.
Enhanced performance for drones & robotics
- Infrastructure Inspection – allowing drones to cover more ground and get more done in a single flight
- Medical Logistics – expanding the reach of UAVs carrying out vital and life-saving organ and vaccine delivery
- Precision Agriculture – enabling more efficient crop monitoring and management for greater yields
- Emergency Response – longer endurance and great range for SAR (search and rescue) operations
By ensuring non-reliance on components or technologies from adversarial nations, we provide a secure and interrupted supply chain that is particularly crucial for military and aerospace platforms. Our technology has already been selected by numerous European, U.S. and global defense primes and OEMs. Learn more: Advanced lithium-metal batteries
Advanced lithium metal batteries for loitering munitions
Our advanced lithium-metal batteries are also ideal for enhancing the combat effectiveness of loitering munitions, providing a robust solution that addresses the limitations of current battery technologies. Offering industry-leading energy density in a lightweight and compact package, BEI products ensure superior range and flight time, and support more agile and rapid maneuvers. With excellent power output in extreme cold, and the ability to be charged, transported and stored at high temperatures without performance degradation, our batteries enable mission-critical platforms to operate anywhere in the world, from the Arctic to the desert. Our highly durable products are also engineered to withstand significant impact and keep on going, with no fire risk. This makes them ideally suited as a safe power source for loitering munitions systems. Learn more: Lithium metal batteries for loitering munitions
Ultralight Commercial Lithium Metal Batteries
Our Ultralight range of commercial lithium metal batteries currently includes two products:
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To find out more about our COTS batteries, or to partner with us to create a custom solution tailored to your drone platform and application requirements, please get in touch.
