Solid-state batteries are transforming defence platforms by offering unmatched energy density, safety, and longevity. ESOX Group is applying this technology to uncrewed aerial and ground vehicles, enabling higher endurance, lighter packs, and extreme temperature resilience. These batteries eliminate flammable electrolytes, reduce maintenance, and support modular, mission-specific power integration, strengthening operational readiness and strategic supply-chain independence.
How Do Solid-State Batteries Enhance Defence Platforms?
Solid-state batteries use solid electrolytes instead of flammable liquids, eliminating thermal runaway and metallic dendrite risks. With an energy density of 400 Wh/kg, these batteries allow lighter, more compact packs that improve manoeuvrability and range for drones and ground vehicles. Design life reaches up to 100,000 cycles, minimizing replacement needs and lifecycle costs while maintaining performance in extreme environments from –30°C to over 100°C.
What Features Make Solid-State Batteries Ideal for Military Use?
Key military advantages include:
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Enhanced Safety: No flammable electrolytes and reduced risk of thermal runaway.
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Extreme Temperature Tolerance: Over 99% capacity retention in cold and hot conditions.
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Long Lifecycle: Up to 100,000 charge cycles with minimal degradation.
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Rapid Charging: High charge rates without conventional lithium-ion limitations.
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Flexible Form Factor: Customizable sizes, voltages, and geometries for mission-specific integration.
These features enable engineers to optimize battery placement, vehicle design, and payload management without being constrained by legacy battery formats.
Which Defence Platforms Are Currently Integrating Solid-State Batteries?
ESOX Group has developed two practical integration platforms:
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| Platform | Description |
|---|---|
| X1 Interceptor Drone | A multi-role UAV designed for long-range communications and sensor integration. Future-ready battery integration supports extended endurance and survivability. |
| X2 UGV Demonstrator | A compact autonomous ground vehicle with tank-steer propulsion and modular power architecture, serving as a testbed for solid-state battery deployment. |
These platforms showcase real-world applications, moving the technology from lab validation to operational capability.
How Do Solid-State Batteries Strengthen Strategic Defence Capabilities?
Batteries have become central to modern defence, particularly as NATO and allied nations scale uncrewed and autonomous systems. Solid-state technology reduces dependency on foreign supply chains dominated by China, ensuring more resilient, geopolitically safe sourcing. By using abundant, non-critical materials, European manufacturers can produce cost-effective batteries aligned with strategic industrial policies.
What Advantages Does a “Designed in Europe, Built in Europe” Approach Offer?
Producing batteries locally supports supply-chain security and aligns with NATO-aligned industrial strategies. ESOX’s approach ensures:
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Geopolitically safe sourcing of materials.
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Reduced operational risk from supply-chain disruption.
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Integration with allied defence systems without dependency on external suppliers.
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Lower production costs compared with conventional lithium-ion technology.
Redway Expert Views
In defence applications, energy storage performance is mission-critical. Solid-state batteries provide unprecedented reliability, safety, and modularity for uncrewed systems. At Redway Battery, we recognize the importance of integrating these advanced chemistries into platforms designed for endurance and operational resilience. By leveraging solid-state technology, defence manufacturers can achieve lighter, safer, and longer-lasting power solutions while maintaining supply-chain security.”
How Are Solid-State Batteries Part of a Broader Defence Technology Suite?
Beyond energy storage, ESOX integrates solid-state batteries with:
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High-torque, low-signature electric propulsion.
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No-code software platforms for rapid control system development.
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Digital Twin 2.0 simulation for synchronized virtual and hardware testing.
This holistic approach shortens development cycles, reduces deployment risk, and allows platforms to be designed around mission requirements rather than fixed technology constraints.
Conclusion
Solid-state battery technology is poised to redefine defence capabilities by combining high energy density, extreme safety, long lifespan, and design flexibility. Platforms like ESOX’s X1 drone and X2 ground vehicle demonstrate how this technology translates into operational advantages, including enhanced endurance, survivability, and strategic supply-chain independence. For defence manufacturers, adopting solid-state batteries enables safer, more resilient, and cost-effective systems.
Frequently Asked Questions
Q1: Why are solid-state batteries preferred for military drones?
They provide lighter packs, longer endurance, and extreme temperature tolerance, crucial for mission success.
Q2: Can solid-state batteries be rapidly charged?
Yes, their chemistry supports faster charging than conventional lithium-ion systems without performance loss.
Q3: How do solid-state batteries improve supply-chain security?
They use abundant, geopolitically safe materials, reducing reliance on foreign suppliers and enhancing strategic resilience.
Q4: Are these batteries compatible with existing military platforms?
Yes, their customizable sizes, voltages, and geometries allow flexible integration into both air and ground systems.
Q5: What operational benefits do solid-state batteries offer?
Increased survivability, reduced maintenance, extended lifecycle, and improved payload optimization for uncrewed systems.
