Graphene Connect 2026 Day 2 Session 3

BLACKLEAF - Scaling Sustainable Graphene for Industrial Applications: Conductive and resistive Inks, Concrete enhancement, and Stealth Technologies

Graphene combines high electrical conductivity, mechanical reinforcement capability, and versatile functional properties, making it a strong candidate for industrial materials and systems. However, industrial adoption remains limited by challenges related to scalable production, sustainability, cost control, and integration into existing manufacturing processes.

This presentation addresses the industrial scale-up of few-layer graphene (FLG) produced through a sustainable process capable of delivering consistent quality at large volumes. Emphasis is placed on controlling key material parameters—such as layer number, particle size distribution, surface chemistry, and dispersion stability—to ensure compatibility with diverse industrial matrices. Rather than using a single, generic graphene grade, few-layer graphene must be engineered for each application to meet specific processing conditions, formulation constraints, and targeted performance requirements.

Several industrial use cases are discussed, including conductive and resistive inks with controlled electrical performance, graphene-based additives for concrete with enhanced mechanical durability, and stealth technologies enabling lightweight electromagnetic absorption through tailored graphene properties.

The presentation illustrates how application-driven material optimization, combined with scalable and sustainable production, is critical to translating graphene from laboratory-scale potential to industrial reality.

COLFEED4Print - Printing graphene with COLFEED4Print feedstock

AM enables the design of 3D electrodes with larger active surface areas, improving electrochemical performance beyond conventional methods. Graphene are highlighted for its electronic properties, and sustainable origin, but suitable feedstocks for AM remain limited. The work presented develops metal free conductive filaments for material thermal extrusion (MTE), using PLA composites with 15 vol% colloidal graphene. Surface modification improves dispersion and bonding, orienting the inorganic phase during printing. These filaments were characterized for thermal, mechanical, and electrical behaviour, and then used to print complex electrodes. The resulting electrodes showed enhanced electrochemical properties, with tailored microstructures that increased conduction paths and achieved high electrical conductivity (>1000 S·m⁻¹). Beyond electrochemical storage, graphene based composites fabricated by AM can be used in applications where conductivity and mechanical flexibility are critical. The integration of graphene into AM feedstocks not only advances electrochemical devices but also opens pathways toward multifunctional materials across healthcare, energy, and industrial technologies. During the presentation performance of graphene in printed devices will be described.

NanoIntegris Technologies - Not All Graphene Is Created Equal: The Role of Quality and Structure in Battery Applications

Graphene is increasingly explored for battery applications beyond its traditional role as a simple conductive additive. Literature shows that high-quality, low-defect graphene (G/D ratio >2) can enhance electrical conductivity and improve mechanical stability in electrodes. Owing to its two-dimensional morphology, graphene can form conformal coatings around active materials such as silicon in anodes and LiFePO₄ (LFP) in cathodes, helping to accommodate the large volume changes (up to ~400%) that occur during charge–discharge cycling.

In the electrodes, graphene enables more efficient wrapping of active materials due its 2D structure more effectively than traditionally used graphite and/or carbon black., with reported improvements in capacity and cycling stability. Overall, conductive graphene and hybrid carbon architectures are expected to significantly reduce the total additive content in electrodes. High-quality graphene therefore represents a promising platform material for next-generation lithium-ion and solid-state batteries, where both electrical and mechanical performance are critical.