Cabot Corp secures $50m DOE grant for US battery materials expansion

The NYSE-listed specialty chemicals group will pair the federal grant with $75m of its own capital to expand conductive additive production in Louisiana and

By Rowen Brooks Thu, 24 September 2026 AI level 2 of 5

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Cabot Corporation has received a modified $50 million grant from the US Department of Energy (DOE) to support a two-site expansion of its North American battery materials manufacturing platform. Combined with approximately $75 million of Cabot's own capital, the total $125 million programme will scale production of advanced conductive additives at existing facilities in Franklin, Louisiana, and Pampa, Texas, with both projects targeted for completion by the end of 2028.

The grant was originally awarded for a Michigan greenfield project. The DOE has agreed to redirect the funding toward a brownfield programme, allowing Cabot to leverage existing manufacturing assets. The company says the revised approach should accelerate the timeline for bringing domestic supply online relative to building from scratch.

What is being built

The Franklin facility will expand output of Cabot's LITX battery-grade conductive carbons, a category of speciality carbon black used to improve electrical conductivity within lithium-ion cells. The Pampa plant will establish what Cabot describes as the first commercial-scale production line for carbon nanostructures (CNS), marketed under the ENERMAX brand. Carbon nanostructures are a more advanced class of conductive additive than conventional carbon black; at lower loading levels they can deliver comparable or improved conductivity, which matters because every gram of additive displaces active material in the cell.

Cabot chief executive Sean Keohane said the investments will strengthen the company's position in the North American battery ecosystem and provide customers with localised supply. "Demand for advanced batteries continues to expand across energy storage, electrification, and emerging AI-related infrastructure," he said.

Market context

Conductive additives are a small but strategically significant segment of the battery supply chain. They typically account for one to three percent of cell mass, yet their performance characteristics affect energy density, charge rate and cycle life. The market is dominated by a handful of global suppliers including Cabot, Imerys and Orion Engineered Carbons, alongside Asian producers that supply the large integrated cell manufacturers in China, South Korea and Japan.

The DOE's support reflects a broader federal push to de-risk the US battery supply chain by funding upstream materials capacity, not just cell assembly. The Inflation Reduction Act's 45X advanced-manufacturing tax credit covers eligible battery components and their constituent materials, and conductive additives may qualify depending on their classification under Treasury guidance. Cabot did not confirm 45X eligibility in its release.

Demand drivers cited by Cabot include grid-scale energy storage, the electrification of transport, and the power requirements of artificial intelligence data centres. The last of these has emerged as a recurring theme in battery and grid-infrastructure investment theses over the past 18 months, though AI infrastructure primarily draws on grid power rather than on batteries directly. The more immediate demand signal is the growth of utility-scale battery energy storage system (BESS) deployments and the ongoing ramp of electric vehicle production in North America.

Policy read-across

The brownfield pivot signals a pragmatic adjustment in how DOE is managing its critical-materials grant portfolio. By redirecting capital from a greenfield project to proven manufacturing sites, the department reduces execution risk while maintaining the policy objective of domestic supply security. That approach aligns with the broader critical-minerals strategy articulated in the DOE's National Blueprint for Lithium Batteries.

Cabot expects both facilities to be operational by the end of 2028, a timeline that aligns with several major North American cell-manufacturing plants currently under construction or in ramp-up. Near-term milestones to watch include a formal final investment decision, any 45X credit confirmation, and the naming of anchor customers as the company scales CNS production to commercial volumes for the first time.