CarbonX's EIC Accelerator Attacks China's Grip on Graphite
The anode of almost every lithium-ion battery is made of graphite, and Europe imports nearly all of it, mostly from China. CarbonX, founded in 2014 as a spin-off of TU Delft from work that began there in 2007, makes a different material: a patented 3D carbon network it says conducts electrons and moves ions better than graphite anodes, produced by a low-temperature continuous process in existing carbon black plants rather than in new factories.
The EIC Accelerator selected the project, ECo-AnodeX, at its October 2024 cut-off for blended finance under the renewable energy challenge, and CORDIS records a grant of €2,499,612.50 from June 2025 to May 2027. The project's numbers are ambitious: capacity of more than 20,000 tonnes a year already validated in existing facilities, a price of €5 to €6 per kilogram, €600 million of a battery carbon materials market it puts at €16.8 billion by 2030, and up to 10 gigatonnes of CO2 avoided by 2050.
Company file
- Legal entity
- CarbonX BV, Molengraaffsingel, Delft
- Founded
- 2014, spin-off of TU Delft
- Founders
- Rutger van Raalten (CEO), Daniela Sordi (CTO)
- Investors
- Innovation Industries, Borski Fund, Energy Transition Fund Rotterdam managed by InnovationQuarter
- Partner
- ElevenEs, Serbian LFP cell maker, testing the material since 2025
- Advisers
- Rohan Patel, former Tesla and White House policy lead, on the advisory board since December 2025
- EIC project
- ECo-AnodeX, agreement 101218233, June 2025 to May 2027
A material that found batteries late
CarbonX did not start in batteries. Its own timeline records commercial production in Asia from 2018 and a first supply agreement in 2019 for automotive tyres, with the battery research facility in Delft opening only in 2021 and a single-layer pouch cell line commissioned in 2024. The material is the same; the application changed as graphite became a critical raw material question.
The money arrived with that shift. In December 2024 the company extended a €10 million growth round by about €4 million, co-led by the Energy Transition Fund Rotterdam managed by InnovationQuarter alongside existing shareholders Innovation Industries and Borski Fund, to increase testing capacity, secure contracts and prepare a feedstock mixing facility in the Port of Rotterdam ahead of first offtake agreements, as BeBeez reported. The company's own timeline puts the start of production at that Rotterdam mixing facility in 2026 and a first full production facility in 2028.
The record
Twelve years from a TU Delft discovery to a mixing plant
CarbonX makes a 3D carbon network material intended to replace graphite in battery anodes, produced in existing carbon black plants.
- 2014Company foundedRutger van Raalten and Daniela Sordi spin the material out of TU Delft, where it was first developed in 2007
- 2018First commercial productionStart of production in Asia, in existing carbon black facilities
- 2019First supply agreementFor automotive tyres, not batteries
- Dec 2024Growth round extendedEnergy Transition Fund Rotterdam co-leads a €4M extension with Innovation Industries and Borski Fund€14M total
- Feb 2025ElevenEs development agreementThe Serbian LFP cell maker starts testing CarbonX anode material against graphite
- Jun 2025ECo-AnodeX startsTwo years of EIC funding toward mass production in existing industrial facilities€2.5M
- May 2026ElevenEs cooperation continuesMoves to industrial-scale testing in full prismatic LFP cells
- 2026Rotterdam mixing facilityStart of production planned for the first CarbonX mixing facility, per the company timeline
CarbonX website and news; CORDIS; Silicon Canals; BeBeez.
Qualification is the whole game
Battery materials are sold only after cell makers qualify them, which takes years. CarbonX says it is in late-stage qualification with several of the ten largest global cell manufacturers, and the one partner it names publicly is ElevenEs, the Serbian LFP maker, which began evaluating the material against conventional graphite anodes under a joint development agreement in February 2025. In May 2026 the two announced that the cooperation would continue into an advanced industrial-scale testing phase using full prismatic blade cells.
No offtake agreement has been announced, and no independent test data on the material's performance in cells has been published. The company's news in 2025 and 2026 is mostly institutional: joining the US Zero Emission Transportation Association, a trade mission to China, an advisory board appointment, its CTO made a fellow of the Netherlands Academy of Engineering, and a September 2026 post from the CEO on how hard it is to take Dutch innovation from proven technology to commercial scale.
ECo-AnodeX in October 2026
Seventeen of 24 months used
The EIC project runs from June 2025 to May 2027. CORDIS has published no periodic report, and the company has announced no offtake agreement.
CORDIS, grant agreement 101218233.
The plan
An eco-friendly, cost-competitive anode material mass produced in existing industrial plants, at €5 to €6 a kilogram, supplying 400GWh of batteries by 2030.
The record so far
Material produced commercially since 2018 for other uses, industrial-scale cell testing with one named partner, and a mixing facility planned in Rotterdam; no offtake contract, no battery customer named and no published cell data.
- Production in existing plantsDoneCommercial production in Asia since 2018, per the company.
- Qualification by cell makersIn testingElevenEs industrial-scale phase from May 2026.
- Offtake agreementsNot signedExpected from mid-2025 in earlier coverage; none announced.
- Own production facilityPlannedRotterdam mixing facility in 2026, first full plant in 2028.
Twelve years, €17 million
€17 million over twelve years is modest for a materials company aiming at gigawatt-scale supply, and the EIC grant of €2.5 million is a seventh of that total. The award was blended finance, and no EIC Fund equity has been announced. The business model is to sell through partnerships with carbon black producers, cell manufacturers and carmakers in Europe, the US, China, India and South Korea, with the project promising more than 200 direct and 350 indirect jobs by 2030.
Funding
€17M raised in twelve years, plus a €2.5M grant
The project states €17M raised since 2014; the 2024 growth round and its extension account for €14M of that.
CORDIS project summary; BeBeez and Silicon Canals, December 2024. Values in € millions.
Graphite is a European policy problem
Graphite is on the EU's critical raw materials list, and its processing is concentrated in China, which is the political argument behind this grant and behind the Dutch and Rotterdam public money in the company's cap table. CarbonX's specific appeal is that it does not need new gigafactories: if the material really can be made in existing carbon black plants, European supply could be added without building the plants first. That claim, validated capacity of over 20,000 tonnes, is the one a buyer would test.
Verdict
CarbonX says it has a process that runs in plants that already exist, which would be a rare asset in battery materials, and, by its own account, eight years of production behind it for other applications. What it does not have is a battery customer. Qualification with the big cell makers is unnamed, the one named partner is a mid-sized Serbian LFP producer still testing, and the offtake agreements expected in mid-2025 have not appeared. Seven months of the grant remain.
Sources
- CORDIS, ECo-AnodeX project fact sheet
- CarbonX, company story, team and timeline
- CarbonX, news archive
- BeBeez, CarbonX lands funding to challenge China's grip on a crucial battery material, 11 December 2024
- Silicon Canals, CarbonX secures an additional €4M, December 2024
- Tyre Trends, CarbonX and ElevenEs extend their LFP battery partnership into 2026
Industry
EnergyEnergy storage
- Focus
- Battery materials
- Technologies
- Materials science
- Nanomaterials
- Keywords
- Lithium-ion batteries
- Critical raw materials
- Electric vehicles
- Supply chain