Battery mixing technology from Eirich bridges lab testing and gigafactory production
Category: Batteries, Components & Technology, Material Handling, Materials & Manufacturing, Recycling & Second Life


Eirich’s modular slurry and pump skid design allows electrode mixing lines to scale from pilot installations to full gigafactory throughput without redesigning the core process
(Image courtesy of Eirich)
Eirich has built a battery electrode mixing portfolio that spans coin-cell scale laboratory testing through gigafactory production. The Hardheim-based mechanical engineering specialist points to an established track record at the UK Battery Industrialisation Centre and at production sites running several gigawatt-hours of annual capacity
Electrode mixing determines battery quality at scale
The construction of electrode mixes has an outsized effect on battery quality and service life, since interactions between active materials, binders, additives, and machine technology determine whether a slurry holds stable rheological properties or proves sensitive to minor process fluctuations. The EL1nano micro-mixer allows recipe testing with samples of just a few decagrams, an advantage the company highlights given that battery materials can cost several hundred to a thousand euros per kilogram. Because the mixing principle remains geometrically similar across machine sizes, results from small-batch testing transfer directly to pilot and production lines.
Customers can test recipes and process parameters at Eirich’s Hardheim test centre and at sister facilities in China, Japan, India, and the United States. The Japanese operation is expanding with the Eirich Innovation Centre Japan, opening in Nagoya in July 2026. The facility consolidates the former Nippon Eirich headquarters and the Narita test centre into a three-storey, roughly 1,800 square metre building, with a dedicated laboratory for battery materials testing among its core functions.
Battery mixing technology deployed across UK and European sites
Eirich has supplied mixing and preparation technology to the UK Battery Industrialisation Centre in Coventry, where its systems remain in operation on the research facility’s electrode production line. Separately, peer-reviewed research published in Powder Technology identifies the Eirich mixer as a widely used choice in UK and European battery manufacturing, citing its availability across scales from roughly 0.1 to 12,000 litres.
More than a hundred laboratory and pilot mixers have been delivered worldwide through its test centre network. Installed systems in Europe and Asia include giga-pilot plants of approximately two and a half gigawatt-hours, several production sites running five to six gigawatt-hours annually, and pilot lines in the three-digit megawatt-hour range. Eirich supports these deployments through training, joint commissioning, and rental machines for projects needing to move quickly.
Process reproducibility recognised with German Innovation Award
Cell manufacturing challenges frequently stem from processes that cannot be exactly replicated, where variations in particle size distribution, temperature, or viscosity affect electrode production and battery performance. Eirich’s mixing principle combines a rotating vessel with an eccentric mixing tool to fully circulate the mixing vessel’s volume multiple times per minute, paired with precision solid and liquid dosing and a self-cleaning system, producing slurries with consistent solids content and stable rheological properties.
This approach earned Eirich the German Innovation Award 2026 in the Machines & Engineering category, recognising the company’s MixSolver system, named “Giga Odenwald.” The award was presented in Berlin in May 2026, selected by an independent interdisciplinary jury that evaluated 462 submissions from 23 countries on innovation level, user benefit, and economic viability.
Engineering integration across the production chain
Beyond mixing technology itself, Eirich provides engineering services covering complete electrode mixing systems, from raw material handling and dosing through hand-over to the coater. Managing these steps from a single source reduces interfaces and accelerates production setup, particularly for gigafactory-scale projects using modular, standardised system concepts.
Eirich is also developing technology for dry electrode manufacturing and all-solid-state batteries. The company is an associated partner in ProLiT, a German government-funded research consortium developing dry coating processes for lithium-ion battery cathodes. ProLiT‘s partners include BMW, Custom Cells, Coperion K-Tron, Matthews International’s Saueressig Engineering, Umicore, Daikin Chemical Europe, IBU-tec advanced materials, TU Braunschweig, and the University of Münster’s MEET Battery Research Center, working toward a scalable, solvent-free alternative to wet-coating processes.
“Our mission is to build machines that will still enable the right processes tomorrow,” said Dr. Stefan Gerl, Head of Process Technology at Eirich. He said ensuring reproducible quality is the key requirement whether processing conventional slurry or dry electrodes.
Eirich frames its end-to-end approach, from laboratory testing through gigafactory deployment, as a contribution to process reliability in the European battery supply chain, as the company positions itself against suppliers it characterises as prioritising scale and speed over process understanding. The company’s dry electrode and solid-state battery work through ProLiT and other consortia indicates where it expects future demand to concentrate.
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