Drone battery with over 500 Wh/kg: Sion Power unveils Licerion cells for military systems
Longer flight time, more payload, less weight: with two lithium-metal Licerion cells, Sion Power is targeting unmanned military systems. One cell is intended for loitering munitions, the other as a rechargeable drone battery for long missions.

Sion Power recently presented a new drone battery for unmanned military systems: two purpose-developed lithium-metal cells called Licerion with an energy density of over 500 Wh/kg. Compared with conventional lithium-ion batteries, they are said to let combat drones fly two to three times as long, carry over 50 per cent more payload and be 30 per cent lighter.
The Tucson-based manufacturer operates a 10,200-square-metre battery cell production facility in the USA. Lex Alexander, a retired Commander of the US Navy and now CEO of the Battery Innovation Center, stressed:

There is a need within the Department of Defense for domestically produced, advanced batteries to protect national security. This applies in particular given the rapid development of military drone capabilities— Lex Alexander, CEO of the Battery Innovation Center
According to Sion Power, the lithium-metal platform is intended for numerous mission-critical applications, including:
- long-range unmanned aircraft systems (UAS)
- high-performance tactical drones and drones that counter unmanned aircraft systems
- modern platforms for missiles and loitering munitions
- autonomous vehicles at sea and on land
- systems for space and high-altitude aviation
Two versions of the drone battery
As a high-performance primary cell, “Licerion Strike” is designed for loitering munitions, tube-launched intelligence, surveillance and reconnaissance (ISR) systems, fast reconnaissance drones and one-way attack platforms. Thanks to a discharge rate of 6C, aggressive manoeuvres and powerful terminal-phase attacks are possible without thermal derating of performance.
“Licerion Echo”, by contrast, is rechargeable and intended for ISR fixed-wing aircraft, high-altitude long-endurance (HALE) configurations, maritime surveillance and autonomous swarm systems that operate in the field without charging infrastructure. In mission-critical applications, it maximises endurance and operating radius.
Photo credits
© Sion Power · © US ArmyContinue exploring

Loitering munition Virtus from Stark: 45th Armoured Brigade “Litauen” tests it at “Freedom Shield 2026”

Drone stations for maritime surveillance: Rift begins tests off the French coast

Sea drones for the Baltic: Sweden buys surveillance from Saildrone as a service

Maritime drones: Eviden unveils SMX, an electromagnetic navigation sensor

