OCSiAl named carbon nanotube supplier for PowerCo’s Unified Cell batteries

OCSiAl has been named a supplier to PowerCo, the battery manufacturing subsidiary of Volkswagen Group, for its Unified Cell battery platform. OCSiAl will supply single-wall carbon nanotubes to PowerCo’s facility in Salzgitter, Germany.

OCSiAl markets the nanotubes under its TUBALL brand. Added to a graphite anode, they act as a conductive additive, and OCSiAl says they raise the anode’s electrical conductivity and improve heat dissipation, letting cells operate at higher charge and discharge currents without overheating. The company supplies the additives to most European EV battery manufacturers, where it says they improve energy density, fast-charging performance and cycle life in both cathode and anode systems.

The nanotubes for PowerCo will come from OCSiAl’s production facility in Serbia, which the company says increases local sourcing of critical battery materials within Europe. The site has passed audits conducted by PowerCo and by other European and Asian battery manufacturers. OCSiAl says it expects demand from next-generation EV battery platforms to accelerate, and it is evaluating further European capacity expansion to keep pace.

OCSiAl says batteries containing its nanotubes already power around one million EVs worldwide. In November 2025, the company announced a $300-million graphene nanotube facility in Luxembourg, the country where it is headquartered.

“Single-wall carbon nanotubes significantly enhance the electrical conductivity of graphite anodes and improve heat dissipation, enabling battery cells to operate at higher charging and discharging currents without overheating,” said Gregory Gurevich, Senior Vice President at OCSiAl. “These advanced conductive additives are essential for high-performance battery platforms produced at industrial scale.”

Source: OCSiAl