SufroN is a deeptech company pioneering the next generation of room‑temperature sodium–sulfur (RT‑Na/S) batteries — a safe, affordable, and sustainable alternative to lithium‑ion technologies. Built on years of scientific research and a clear industrial vision, we develop advanced materials, cell architectures, and scalable processes that unlock high‑performance energy storage without relying on critical or geopolitically constrained resources.

Our mission is simple and ambitious:

make high‑density, low‑cost, and environmentally responsible batteries accessible to every market that needs them.

To achieve this, we combine cutting‑edge electrochemistry, circular‑economy materials, and a licensing‑first business model that accelerates global adoption. Instead of competing with manufacturers, we empower them — providing turnkey IP blocks, validated processes, and prototyping support that enable rapid industrial deployment.

SufroN is currently establishing its R&D base in Antibes, France, with strong integration into the regional scientific ecosystem. We collaborate with leading research institutions and leverage local agricultural by‑products from the perfume and aroma industry to produce high‑value carbon materials, creating a unique synergy between deeptech innovation and territorial sustainability.

We are building a future where energy storage is cleaner, safer, and truly scalable — and where Europe leads the way in battery sovereignty.

Why Sodium–Sulfur Batteries?

Sodium–sulfur (Na/S) batteries represent one of the most promising alternatives to lithium‑ion technologies — not just for performance, but for cost, sustainability, and long‑term scalability. As global demand for energy storage accelerates, Na/S offers a pathway that avoids the critical material bottlenecks and geopolitical risks associated with lithium, nickel, and cobalt.

At SufroN, we focus on room‑temperature sodium–sulfur batteries, a breakthrough that unlocks the full potential of this chemistry without the safety and infrastructure constraints of high‑temperature systems.

1. Abundant, Low‑Cost Materials

Sodium and sulfur are among the most plentiful elements on Earth.

This means:

• no dependence on scarce or geopolitically sensitive resources

• dramatically lower raw‑material costs

• a stable, predictable supply chain

This is essential for Europe’s energy sovereignty and long‑term industrial resilience.

2. High Energy Density Without Critical Metals

Na/S batteries can achieve energy densities competitive with lithium‑ion — but without using:

• lithium

• nickel

• cobalt

• graphite

This eliminates the environmental and social challenges tied to mining and refining these materials.

3. Safe and Stable by Design

Room‑temperature Na/S systems operate without the thermal runaway risks associated with conventional lithium‑ion cells.

They offer:

• improved safety

• simpler pack design

• reduced cooling and protection requirements

This makes them ideal for stationary storage, mobility, aerospace, and IoT applications.

4. Perfect Fit for Circular‑Economy Manufacturing

Sulfur is often a waste by‑product of industrial processes.

Sodium can be sourced from common salt.

And carbon materials can be produced from local agricultural residues — a key part of SufroN’s regional integration strategy in the South of France.

This creates a battery technology that is not only high‑performance, but also deeply aligned with sustainability and territorial circularity.

5. Scalable and Future‑Proof

As global electrification accelerates, lithium‑ion supply chains face increasing pressure.

Sodium–sulfur provides:

• a scalable alternative

• predictable long‑term pricing

• compatibility with existing manufacturing infrastructure

This makes Na/S one of the few chemistries capable of supporting the massive storage needs of the next decades.