Luxembourg-based nanomaterials company OCSiAl has introduced a new portfolio of single-wall carbon nanotube (SWCNT) products aimed at improving the performance of next-generation battery chemistries and high-power applications.
The company said its expanded Tuball range has been developed in response to growing demand from sectors including energy storage systems (ESS), uninterruptible power supplies (UPS) and battery backup units (BBU), where fast response times and high power density are critical.
OCSiAl said its SWCNT materials are already widely used as conductive additives across multiple battery chemistries, citing their high G/D ratio and consistent batch-to-batch quality achieved over more than a decade of industrial production. The new portfolio is designed to extend these capabilities to emerging cell designs and materials systems.
For anode applications, the company has developed advanced dispersions featuring ultralong nanotubes, which it said enable the formation of robust conductive networks at lower loadings in silicon-rich electrodes. Additional dispersions tailored for lithium-ion systems using Li-CMC binders are claimed to improve first cycle efficiency (FCE) and enhance rate capability.
In cathodes, OCSiAl has introduced NMP-based ultrafine dispersions intended to improve nanotube stabilisation, supporting higher power output and overall performance in high-energy electrode formulations.
The portfolio also includes ready-to-use dispersions for solid-state battery (SSB) chemistries, targeting developers working on next-generation architectures.
Global production network for SWCNT dispersions
Alongside the product launch, OCSiAl is expanding its global production network for SWCNT dispersions, with facilities across Europe and Asia supported by both in-house operations and partners.
The company is also scaling up nanotube synthesis capacity. A second synthesis unit due to come online in 2026 will double current output, while the planned commissioning of third and fourth units within the following year is expected to increase total capacity fourfold.
In addition, a new project in Luxembourg is planned to further expand production, with OCSiAl targeting total global SWCNT capacity of up to 1,000 tonnes.
Photo: graphene nanotube network between electrode particles © OCSiAl
