Safran & Cuberg Collaborate on Battery Systems for Advanced Electric Aviation

Safran and Cuberg will combine their technologies and expertise to create a high performance propulsive energy storage system for future generations of aircraft By Joe Macey / 14 Sep 2023
Safran Cuberg battery system collaboration
Follow AAMi

Safran Electrical & Power has signed a collaboration agreement with Northvolt subsidiary Cuberg to develop an aviation energy storage system for future full electric and hybrid aircraft. 

Safran and Cuberg will combine their technologies and expertise to create a high performance propulsive energy storage system for future generations of aircraft. 

Cuberg, a vertically integrated battery provider, will manufacture and supply rechargeable aviation battery systems based on Cuberg’s lithium metal cells, modules, and packs while Safran Electrical & Power will design and develop global energy storage systems, including high voltage protection components, integration, certification and in-service support.

Cuberg battery systems are built on the configurable Cuberg module, which has been internally validated to achieve a specific energy of 280 Wh/kg and an energy density of 320 Wh/L. This specific energy is up to 40% higher than comparable modules based on lithium-ion technology. This significant improvement provides increased flight range which, in turn, enables new use cases for electric and hybrid aviation. Cuberg modules are purpose-built to manage the mechanical, thermal, and electrical integration of next-generation battery cells.

The Cuberg module incorporates Cuberg’s 20 Ampere-hour lithium metal cell technology. This technology uses a lithium metal anode and proprietary liquid electrolyte to simultaneously solve the interlocking challenges of high-performance cell design and manufacturability.

“We are excited to team with Cuberg as they propose unrivaled disruptive battery cell technologies associated with a best-in-class industrialization process strongly supported by Northvolt. Their unique technology, combined with our expertise in aircraft electrical systems, will enable cutting-edge energy storage systems for future platforms,” said Bruno Bellanger, Vice President & General Manager of Power division, Safran Electrical & Power.

“This partnership with Safran Electrical & Power will help both companies provide certifiable integrated battery systems to aviation customers around the world, and we are thrilled to be working with such an elite and respected provider of aviation products,” added Cuberg CEO and Founder Richard Wang. “Cuberg has built the world’s most established high-performance aviation battery systems program, and this agreement is a welcome endorsement of our technology, our people, and our vision for the future of flight.”

Posted by Joe Macey Joseph Macey is a Content Specialist at Advanced Air Mobility International, focusing on emerging aviation technologies since joining in 2022. He has particular expertise in eVTOLs, vertiports, and propulsion systems. A graduate of Falmouth University in Journalism, Joseph began his career in 2019 as a local reporter. His journalism experience sharpens both his reporting and interview skills, enabling him to deliver well-informed, authoritative insights on the latest trends in the aviation sector. Connect

Latest Articles

Vertical Completes Third Full-Scale Prototype & Doubles Test Capacity

The final prototype aircraft will transition to piloted flight testing in early 2026 to accelerate the path toward commercialization

Dec 24, 2025
Joby Aviation & Metropolis Technologies Partner to Build 25 U.S. Vertiport Sites

New collaboration leverages AI-driven parking infrastructure and aviation logistics to integrate electric air taxis into existing urban transportation hubs

Dec 23, 2025
Archer to Establish UK Engineering Hub & Appoint Veteran Aerospace Leader

The expansion into South West England marks a strategic move to develop dual-use eVTOL technology for the British Army and defense sectors

Dec 22, 2025
Advanced Air Mobility Milestones in 2025

Advanced Air Mobility International looks back at the industry's most significant milestones in 2025, highlighting flying motorcycles, investments, and infrastructure developments

Dec 19, 2025
First Successful Flight Completed for Generation 6 Autonomous eVTOL

Wisk Aero completes the first flight of its Generation 6 autonomous eVTOL aircraft, validating core flight systems and advancing FAA type certification efforts for future passenger operations in the United States

Dec 18, 2025
Archer Secures Master Lease at Hawthorne Airport as Part of LA Air Taxi Strategy

Archer Aviation's strategic acquisition of airfield positions company for upcoming Los Angeles (LA) network launch and 2028 Olympic Games operations

Dec 17, 2025