£100m · Other round · Energy · Oxfordshire, UK
Oxfordshire-based Nexeon has completed a £100m investment round to scale its silicon-anode materials for lithium-ion batteries. The National Wealth Fund committed £52.6m, while Korea Development Bank and Honda Xcelerator Ventures joined as new investors.
The financing will support Nexeon's continued commercialisation and scale-up, including a UK pilot manufacturing facility and an expanded advanced manufacturing technology unit. The company says the project will add highly skilled jobs and strengthen its research and development work in Britain.
Moving silicon anodes from performance to supply
Battery makers use graphite in lithium-ion anodes because it is proven and manufacturable, but the amount of energy graphite can store limits how much range or runtime fits inside a given battery pack. Silicon can hold more lithium by mass, yet it expands and contracts during charging, which can damage the electrode and shorten its useful life.
Nexeon says its NSP1 and NSP2 material structures contain that expansion while preserving cycle life. NSP1 is designed to replace a smaller share of graphite; NSP2 allows substantially more graphite to be displaced. The commercial promise is not just a higher-capacity material, but one that cell manufacturers can integrate into established cylindrical, prismatic and pouch-cell production.
That integration path matters because qualification, repeatability and supply volume determine whether a battery material moves beyond successful tests. Nexeon reports that it has commissioned a volume-production facility in Gunsan, South Korea. Panasonic Energy's 2023 supply agreement also provides a named route into automotive cells, with Nexeon material intended for batteries manufactured in the United States.
Building the manufacturing bridge in Britain
The new UK pilot facility sits between laboratory development and overseas volume production. It gives Nexeon a place to refine process technology, support customer qualification and transfer repeatable manufacturing methods before capacity is expanded. The National Wealth Fund's participation therefore backs a specific industrial bottleneck: converting intellectual property in battery chemistry into a process that customers can qualify and factories can reproduce.
Nexeon's investors also span the markets that must coordinate for adoption. Honda brings an automotive perspective, Korea Development Bank connects to the country hosting the company's first volume plant, and the National Wealth Fund is supporting domestic R&D and pilot manufacturing. Capital alone will not shorten cell-validation cycles, but those relationships can align product requirements, manufacturing scale and customer demand around the same material roadmap.
The execution test is now throughput and qualification. Nexeon has to prove that its material performs consistently at production volumes and that additional UK capability accelerates customer programmes rather than duplicating the Korean plant. If it does, the company can sell higher energy density as a manufacturing-compatible upgrade rather than a redesign of the battery supply chain.
Explore this theme
Why manufacturing scale and form factor may determine the next battery winners — Michael Brehm, Mohamed Foulser / Redstone & Moritz H. Futscher / BTRY, hosted on EUVC · 25 September 2026. The article examines the same gap between laboratory performance, repeatable production and customer integration in a different battery architecture. Added 5 October 2026.
Sources checked:
Nexeon financing announcement · National Wealth Fund · Nexeon technology · Panasonic Energy · EU-Startups · Tech.eu Funding Explorer
