Europe strengthens battery supply chain with Vulcan Energy’s Frankfurt lithium refinery

Europe’s transition to electric mobility has exposed a critical structural weakness in its industrial foundation: a near-total dependence on imported battery-grade [[PRRS_LINK_1]] chemicals. As demand for electric vehicles accelerates, this reliance is no longer a theoretical vulnerability—it is a direct constraint on Europe’s ability to build a self-sufficient battery supply chain.

At the centre of this challenge is lithium hydroxide monohydrate (LHM), the refined chemical required for high-performance EV batteries. Today, most global LHM refining capacity remains concentrated in Asia, leaving European automakers and battery manufacturers exposed to long, complex, and geopolitically sensitive supply routes.

Against this backdrop, the [[PRRS_LINK_2]] Frankfurt lithium refinery in [[PRRS_LINK_3]] represents a landmark industrial development. More than a single project, it is a test of whether Europe can finally establish a fully integrated domestic lithium refining and battery materials ecosystem.

Europe’s Lithium Refining Gap and the Strategic Risk Behind It

For decades, the global battery industry relied on a simple model: extract raw materials in one region, refine them in [[PRRS_LINK_4]], and ship processed chemicals to manufacturing hubs in the West. That model is now under pressure.

Europe’s rapid push toward electrification has collided with a stark reality: while the continent is expanding EV manufacturing capacity, it lacks the industrial [[PRRS_LINK_5]] to refine lithium at scale.

This creates a structural bottleneck:

• EV production is increasing
• battery demand is rising sharply
• but lithium refining capacity in Europe remains limited

The result is a strategic imbalance where Europe depends on external supply chains for a material that is essential to its [[PRRS_LINK_6]] and industrial competitiveness. The Vulcan Energy project aims to directly address this gap by building Europe’s first large-scale integrated lithium hydroxide production system.

The Lionheart Project: A Two-Site Industrial System

What makes Vulcan Energy’s Lionheart Project unique is its integrated two-site design, combining geothermal extraction with industrial-scale chemical refining.

1. Lithium Extraction in the Upper Rhine Valley

The upstream process takes place in Landau, Germany, where lithium-rich geothermal brine is extracted from deep underground formations. Using Vulcan’s proprietary VULSORB® direct lithium extraction (DLE) technology, lithium ions are selectively captured from the brine, producing lithium chloride as an intermediate product.

This method differs fundamentally from traditional evaporation ponds or hard-rock mining:

• higher extraction efficiency (above 90% in pilot testing)
• faster processing cycles
• reduced environmental footprint
• minimal land use compared to conventional lithium production

2. Refining in Frankfurt’s Industrial Hub

The lithium chloride is then transported to Industriepark Höchst in Frankfurt, where it is refined into battery-grade lithium hydroxide monohydrate (LHM). At this stage, NESI’s NORSCAND® electrolysis technology converts the material directly into high-purity lithium hydroxide, eliminating multiple chemical steps used in conventional refining systems.

The planned output is approximately:

• 24,000 tonnes of LHM per year
• enough to supply around 500,000 electric vehicles annually

Importantly, the process is designed to operate with geothermal energy integration, significantly reducing reliance on fossil fuels.

Key Technology Partners Behind the Frankfurt Refinery

At the heart of the refinery is Canadian clean-tech company NORAM Electrolysis Systems (NESI), which provides the electrochemical conversion technology enabling lithium chloride to be transformed into battery-grade material. NESI’s NORSCAND® platform is not an auxiliary component—it is the central processing mechanism of the entire refinery. According to NESI leadership, the Vulcan project represents a large-scale validation of electrochemical refining as a cleaner alternative to conventional lithium processing routes.

Industrial Engineering by Mersen and Siemens

The Frankfurt facility also integrates major European industrial partners:

• Mersen Eco&FLEX® electrolysis units, responsible for the physical electrochemical conversion systems
• Siemens automation systems, valued at approximately €40 million, which manage real-time control of the plant

Given the complexity of electrochemical refining, precision control of temperature, current density, and chemical composition is essential to maintaining consistent battery-grade output. These partners form a tightly integrated industrial technology stack designed specifically for lithium refining at scale.

One of the most important features of the Vulcan Energy strategy is its step-by-step validation approach before full commercial deployment. Rather than moving directly into billion-euro construction, the company established pilot facilities to test each stage of the production chain.

Why Frankfurt Was Chosen as a Refining Hub

The selection of Industriepark Höchst in Frankfurt is not accidental. The site is one of Europe’s largest chemical industrial complexes, offering:

• established energy infrastructure
• advanced logistics networks
• access to skilled industrial labor
• integrated chemical processing systems

Building within an existing industrial hub reduces both capital expenditure and construction risk. In addition, the upstream resource in Germany’s Upper Rhine Valley geothermal basin is already well understood geologically, lowering exploration uncertainty to near zero.

Geothermal Energy: A Built-In Sustainability Advantage

A distinctive feature of the Vulcan Energy model is its use of geothermal energy co-generation.

After lithium extraction, the remaining thermal energy in the brine is reused to generate:

• approximately 275 GWh of electricity per year
• around 560 GWh of heat annually

This not only improves project economics but also significantly reduces the overall carbon footprint of lithium production, a critical factor for European battery manufacturers under increasing environmental scrutiny.

Political and Strategic Backing Across Europe

The groundbreaking ceremony for the Frankfurt refinery included senior political figures such as:

• the Minister-President of Hesse
• the Mayor of Frankfurt

Their participation signals strong regional and national support for building domestic critical raw materials infrastructure in Europe.

In 2025, the project was also designated a Strategic Project under the EU [[PRRS_LINK_7]], formally recognizing its importance to Europe’s supply chain security strategy. While this designation does not include direct funding, it provides regulatory advantages and reinforces the project’s strategic importance to the EU’s battery materials independence agenda.

What the Vulcan Energy Project Means for Europe’s Battery Future

The Frankfurt lithium refinery represents more than industrial development—it is part of a broader attempt to restructure Europe’s position in the global lithium and battery materials market.

If successful, the project could:

• reduce dependence on Asian lithium refining
• strengthen Europe’s EV supply chain resilience
• create a domestic industrial base for battery chemicals
• lower emissions in lithium production through geothermal integration

The broader challenge remains significant. Europe is attempting to build a complete battery value chain—from extraction to refining to manufacturing—within a highly competitive global market where established players already benefit from scale, cost advantages, and mature infrastructure.

A Defining Test for Europe’s Industrial Strategy

The Vulcan Energy Frankfurt refinery is ultimately a test case for whether Europe can translate its geological resources and industrial capabilities into a competitive domestic lithium refining industry. Its success or failure will have implications far beyond Germany. It will help determine whether Europe can achieve genuine battery supply chain independence, or whether it will remain structurally dependent on external refining systems despite growing EV demand. In the global race for critical minerals and battery technologies, Vulcan Energy’s project is not just about lithium production—it is about redefining Europe’s role in the future of clean energy manufacturing.