Nexeon Lands £52.6m from UK National Wealth Fund in £100m Round

British battery materials firm Nexeon has pulled in £52.6 million from the UK’s National Wealth Fund, part of a wider £100 million raise that will bankroll a domestic pilot production line for its silicon-based anode materials.

The Oxfordshire company confirmed the round also drew fresh money from Korea Development Bank and Honda Xcelerator Ventures. The cash goes toward R&D in Britain, an expansion of its advanced manufacturing technology unit and a batch of new skilled jobs.

At the heart of the story is the chemistry. Nexeon builds silicon anodes for lithium-ion cells — a swap for the graphite most packs still rely on. Silicon can hold far more lithium, which means higher energy density, quicker charging and, in theory, more range from the same battery weight. Turning that promise into a manufacturable, durable material is the hard part.

Funding Snapshot: £52.6m from the National Wealth Fund · £100m total round · Korea Development Bank and Honda Xcelerator Ventures among new backers

What the public money buys

The National Wealth Fund’s contribution is earmarked for a UK pilot manufacturing facility. According to Nexeon, the financing supports its development work and lets it scale up the advanced manufacturing technology unit, generating what it describes as a number of highly skilled roles.

Oliver Holbourn, chief executive of the National Wealth Fund, framed the move as part of a broader push to anchor a competitive EV supply chain on British soil — arguing that advanced battery technology is where the leverage sits, and that public capital here should pull private money off the sidelines.

Nexeon CEO Dr Scott Brown called the backing a strong endorsement of the company’s technology and of its place in the next generation of lithium-ion batteries. His read: the support signals the strategic weight of the work, both for cell performance and for the UK’s standing in global battery supply chains.

The Korea link, and a Honda connection

This is not Nexeon’s first headline of the year. Honda came in through its Xcelerator Ventures arm back in May, with that funding tied to commercialising the silicon anode tech and ramping the company’s first large-scale plant in Gunsan, South Korea.

That Gunsan site is already running and is built to churn out silicon-carbon anode material at industrial scale. Panasonic has already agreed to use output from Gunsan in lithium-ion cells made at its Kansas battery plant — a useful proof point that the material can clear OEM qualification.

The new UK site is smaller in ambition: a pilot line meant to underpin domestic production further down the road, sitting alongside rather than replacing Gunsan.

Why silicon anodes matter

Graphite has dominated anodes for decades, and it works. But it caps how much energy you can cram into a cell. Silicon-carbon composites are the industry’s favoured route to break that ceiling without wrecking cycle life — the reason names like Group14, Sila and Nexeon keep attracting capital.

• Energy density: more capacity per kilogram of anode material
• Charging: faster uptake is the pitch, though heat management gets harder
• Range: potentially more miles from an unchanged pack
• The catch: silicon swells during charging, so engineering the composite is everything

For Britain, the political subtext is hard to miss. The country has spent years trying to shake the perception that it builds cars but not the cells inside them. Funding a materials supplier is a different lever than subsidising a gigafactory — cheaper, and arguably further upstream — but it only pays off if the material ends up in real cells at volume.

Nexeon has the Gunsan plant and a Panasonic supply agreement to point at. The UK pilot line is the next step, and the National Wealth Fund now has skin in the game.