Clarios sodium-ion batteries

Sodium-ion (Na-ion) batteries offer a sustainable solution for the evolving demands of modern vehicles. Made from abundant materials such as salt, wood, iron, and air, they are inherently easy to recycle and free from conflict minerals and toxic elements. To accelerate the development of this technology, Clarios has partnered with Altris, a leader in sodium-ion cathode material and battery cell technology, to bring advanced Na-ion solutions to the low-voltage automotive market—an essential system for powering critical vehicle functions.

Advancing Energy Innovation with Sodium-Ion

Energy Innovation for Modern Mobility

Sodium-ion (Na-ion) technology delivers energy density on par with lithium iron phosphate (LFP) battery technologies while maintaining strong sustainability credentials.

Sustainable Chemistry, Abundant Resources

Na-ion batteries are produced using salt, wood, iron, and air—free from conflict minerals.

Engineered for System Integration

Na-ion batteries are being developed with up to 60 volts of potential, supporting both new vehicles and aftermarket replacements in multi-battery low-voltage systems.

Optimized Safety and Redundancy

The Clarios low-voltage system architecture ensures critical safety features, system redundancy, and compatibility with evolving vehicle platforms.

Proven Power: Real-World Sodium-Ion Battery Performance

Engineered for extreme cold and built for scale, Clarios’ new power sodium-ion cell technology delivers high current output, low-temperature reliability, and competitive energy density. Derived from abundant, conflict-free materials such as salt, wood, iron, and air, sodium-ion seamlessly complements lead-acid and lithium-ion options to give OEMs a high-performance, cost-effective, and highly recyclable solution for a sustainable future.

Sodium-Ion Cold-Cranking Performance

Advancing the Future of Sodium-Ion Batteries

See how Clarios and InoBat are taking sodium-ion battery technology from development and validation into industrial production. This milestone shipment highlights progress toward scalable, low-voltage battery solutions supported by a European supply chain and designed for future customer applications.

Delivering Value for the Road Ahead

Our sodium-ion development efforts are designed to deliver advanced low-voltage battery systems that meet the growing power demands of modern vehicles while supporting sustainability and circularity goals. By combining Clarios’ expertise in low-voltage architectures and system integration with Altris’ leadership in sodium-ion technology, automakers gain access to a chemistry-agnostic portfolio that includes lead-acid, lithium-ion, and sodium-ion solutions. These innovations ensure compatibility with evolving vehicle platforms, enhance system redundancy for critical safety features, and provide sustainable alternatives for future mobility.

Explore More Innovation and insights from clarios

HOLLAND, MI (USA) – February 12, 2026 – Clarios, a global leader in advanced low-voltage energy storage solutions, announced today that its Meadowbrook facility in Holland, Michigan, will serve as the assembly site for the supercapacitor systems to support significant OEM customer programs. This step advances the industrialization of the program and strengthens its U.S.-based supply chain.

The decision aligns with Clarios’ broader $6 billion U.S. investment strategy, which aims to establish a resilient domestic supply chain for advanced energy storage technologies and strengthen long-term U.S. manufacturing capabilities.
The program builds on the capabilities of Maxwell Technologies, a leading developer of supercapacitor cells and modules that operates as an independent business unit within Clarios. Maxwell contributes decades of innovation expertise, reinforcing Clarios’ position as a technology leader in high-performance, short-duration energy storage.

Clarios’ supercapacitor systems – also referred to as ultracapacitors (UCM) in certain OEM applications – are designed for 12V and 48V automotive architectures, providing rapid charge discharge performance and enhanced reliability for critical functions such as steer-by-wire, chassis stabilization, voltage stability and redundancy – particularly when paired with AGM batteries. As part of Clarios’ systems-oriented approach to low-voltage energy management, they serve as a foundational building block within integrated power and stability architectures increasingly adopted across the industry.
“With Meadowbrook as our assembly site, we are strengthening our U.S. manufacturing capabilities and ensuring a resilient supply chain for our customers,” said Mark Wallace, CEO of Clarios. “This step underscores our commitment to localized production and to delivering advanced, high-performance energy storage systems.”

clarios supercapacitor on table with maxwell cell

“This milestone reflects both customer needs and the evolution of advanced low-voltage mobility systems,” added Federico Morales Zimmermann, Vice President & General Manager, Global OEM Customers, Products & Engineering. “By combining Clarios’ system expertise with Maxwell’s longstanding leadership in supercapacitor technology, we are well positioned to support the evolving requirements of our OEM customers.”

Assembly operations at the Meadowbrook Plant in Holland, Michigan, represent a key milestone in Clarios’ U.S. manufacturing strategy and will support the long-term readiness of OEM customer programs.

About Clarios

Clarios is the global leader in advanced, low-voltage battery technologies for mobility. Our batteries and smart solutions power nearly every type of vehicle and are found in 1 of 3 cars on the road today. With around 18,000 employees in over 100 countries, we bring deep expertise to our Aftermarket and OEM partners, and reliability, safety and comfort to everyday lives. We answer to the planet with a rigorous sustainability focus – advancing best-in-class sustainability practices and advocating for them across our industry. We work to ensure 100% of our products sold are recyclable, and we recycle 8,000 batteries an hour in our network.