Altilium's UK Battery Recycling Plant Aims to Keep Critical Minerals Onshore

In a Plymouth industrial estate, a machine is quietly digesting 300 kilograms of black mass a day. This dark, graphite-laced powder, the pulverized guts of spent electric vehicle batteries, is the feedstock for Altilium’s attempt to build a new industrial loop. The company’s bet is that by perfecting a chemical process to recover over 95% of the lithium, nickel, and cobalt, it can turn the UK’s coming wave of end-of-life EVs into a domestic source of battery-grade materials. It is a classic unit economics puzzle, measured in tonnes of recovered cathode per acre of British soil.

The Patented Chemical Wedge

Altilium’s differentiation is a hydrometallurgical process it calls EcoCathode, which uses nitric acid to leach critical minerals from shredded battery cells. The company claims a 99% recovery and reuse rate for the acid itself, a key point for both economics and environmental permits, and says the method also recovers 99% of the graphite for reuse in new anodes [Altilium.tech, Unknown]. This focus on a closed-loop, zero-waste process is the technical wedge. While competitors often focus just on safe disposal or bulk metal recovery, Altilium is aiming further up the value chain: producing battery-ready cathode active material (CAM). In late 2024, it announced, in partnership with the UK Battery Industrialisation Centre, the production of the UK’s first EV battery cells made from its recycled materials [UKBIC, Unknown]. It is one thing to extract metal; it is another to prove it works in a new cell.

Scaling from ACT2 to ACT3

For now, the operation is deliberately staged. The ACT1 facility is the R&D hub. ACT2, the plant processing that 300kg daily, is the demonstration scale [Altilium, Dec 2024]. The real test is ACT3, a planned refinery designed to process the equivalent of 24,000 EV batteries annually [Altilium, Oct 2025]. A £18.5 million government grant is helping fund that build-out [TheNextWeb, Unknown]. This stepwise approach manages technical risk, but the commercial clock is ticking. The company must secure enough end-of-life battery supply,a logistics challenge in itself,and lock in offtake agreements with cell makers before the capital-intensive ACT3 can be justified. Early partnerships, like a UK government-backed project with Nissan for battery processing, are crucial signals [Altilium, Mar 2024].

The Onshore Ambition and Its Hurdles

Altilium’s narrative is powerfully geopolitical: building a "fully sovereign" battery supply chain for the UK [Altilium, Jul 2025]. In a world wary of concentrated critical mineral supply, that message resonates with policymakers and certain automakers. The backing from SQM Lithium Ventures, the venture arm of a major global lithium producer, adds a strategic layer [Altilium, Sep 2023]. Yet, the path is littered with the carcasses of capital-intensive recycling ventures that underestimated scale-up costs and commodity price swings. The company’s reliance on self-reported metrics and undisclosed Series B details means outsiders are judging the technology largely on its own claims. The most immediate competitive pressure isn’t from another startup, but from the established, scaled pyrometallurgical operations of giants like Ecobat, which can handle huge volumes but often with lower recovery rates for some minerals, particularly lithium.

The math for Altilium’s model looks something like this. If its ACT3 plant hits capacity, processing 24,000 battery packs a year, and recovers just 8 kilograms of lithium carbonate equivalent per pack (a conservative estimate), that’s nearly 200 tonnes of lithium kept in circulation annually. That’s not enough to power the British EV revolution alone, but it is a meaningful start, and the value of the concomitant nickel and cobalt is significantly greater. The back-of-the-envelope calculation suggests the real fight isn’t against other recyclers, but against mined virgin material. To win, Altilium must prove its EcoCathode material is not just low-carbon, but cost-competitive with the mined and refined supply chains that have had a century’s head start.

Sources

1. [Altilium.tech, Unknown] Process page detailing EcoCathode recovery rates | https://altilium.tech/process/
2. [UKBIC, Unknown] Announcement of first UK EV battery cells from recycled materials | https://www.ukbic.co.uk/altilium-and-ukbic-announce-successful-production-of-uk-s-first-ev-battery-cells-made-from-recycled-materials
3. [Altilium, Dec 2024] Commencement of activities at ACT2 plant | https://altilium.tech/2024/12/01/altilium-achieves-key-milestone-with-commencement-of-activities-at-new-ev-battery-recycling-plant/
4. [Altilium, Oct 2025] Reference to ACT3 plant capacity | https://altilium.tech/2025/10/08/9144/
5. [TheNextWeb, Unknown] Report on £18.5 million grant funding | https://thenextweb.com/news/1417451-altilium-drive35-ev-battery-recycling-plymouth
6. [Altilium, Mar 2024] Partnership announcement with Nissan | https://altilium.tech/2024/03/04/altilium-partners-with-nissan-for-uk-government-backed-multimillion-pound-electric-vehicle-battery-recycling-project/
7. [Altilium, Jul 2025] Article on building a circular UK supply chain | https://altilium.tech/2025/07/21/building-a-fully-circular-battery-supply-chain-in-the-uk-our-approach/
8. [Altilium, Sep 2023] Announcement of $12M Series A led by SQM Lithium Ventures | https://altilium.tech/2023/09/01/altilium-secures-12m-series-a-funding/