Building the next American battery platform
We’ve already built the cell. Now we’re scaling a safer, American-made battery platform—engineered for AI, defense, and grid resilience.
Born in the lab of Nobel Laureate Prof. John B. Goodenough, co-inventor of the lithium-ion battery, our potassium-ion chemistry has the best combination of performance, safety, and sustainability. And it's made in the U.S.
Modular and fit for AI Infrastructure
Inherently safer, high-power K-ion systems designed for mission-critical applications
Data centers require uninterruptible power for critical operations. Our modular K‑Pack and K‑Cabinet systems deliver scalable backup—without lithium, cobalt, or compromise.
K-ion
K-Pack
K-Cabinet
“Modular data centers will require nearly $7 trillion in capital expenditures by 2030 to meet skyrocketing demand for AI compute.”
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Why Potassium Matters
A safer, scalable, American alternative to lithium. Built to power AI, defense, grid infrastructure, and beyond.
Potassium is uniquely positioned to reshape the battery supply chain. Unlike lithium, it doesn’t rely on scarce or geopolitically sensitive minerals. It’s abundant, American, and enables energy storage products that are inherently safer and more scalable.
Group1’s platform unlocks the commercial potential of the potassium-ion—backed by decades of research and designed for immediate compatibility with existing lithium-ion formats. These fundamental chemistry advantages translate into meaningful product benefits:
Product benefits
Our potassium batteries have material-level benefits that enable differentiated product performances in high-stakes applications like UPS, defense, and grid backup—without relying on lithium or geopolitically sensitive materials.
Where It Starts—and Where It's Going
Group1’s potassium-ion platform is designed for systems that demand safety, scalability, and immediate power—starting with mission-critical applications, such as UPS for data centers and defense. Built using the standard 18650 format and assembled into modular packs. Our batteries are drop-in compatible with existing infrastructure.
As we scale, this same architecture enables expansion across high-value commercial, industrial, and national security applications.
Data Centers
AI data centers rely on uninterrupted power. Group1’s KIB delivers fire-safe, high-power UPS backup—without lithium, nickel, cobalt, or supply chain risk. Already built in 18650 format and integratable into modular packs.
National Security
National security demands energy independence. Our American-made KIB meets "Substantially Manufactured in the USA" and the DOD’s growing demand for scalable, drop-in 18650 cells.
Additional Markets
BESS
Grid operators require scalable, fireproof backup that can tolerate deep discharge. Group1’s KIB is a high-performance drop-in for battery energy storage systems—without the fire risk of lithium-ion.
KIB’s deep (0V) discharge and fire-safe chemistry are uniquely suited for large-scale stationary storage—especially where lithium is seen as too volatile
Electric Vehicles
Group1’s chemistry avoids lithium, cobalt, and nickel—making it a cost-stable platform for EVs. While not our entry point, KIB offers energy densities on par with LFP-LIBs, and is consistent with emerging needs for domestic, sustainable transportation solutions.
Robotics
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Prof. John B. Goodenough’s Final Breakthrough
We are honored to carry his work forward—commercializing potassium-ion to power the next generation of American infrastructure.
The Team Building the Future of American Batteries
Group1 is led by battery pioneers and startup veterans
Leadership and Staff
Advisory Board and Board of Directors
