Ilika Powers Up: A Deep Dive into Their Solid-State Battery Revolution and Q4 2026 Performance

Stepping into the world of advanced battery technology, Ilika plc recently unveiled its Q4 2026 earnings, giving us a fresh glimpse into their journey. It was July 29th, 2026, when CEO Graeme Purdy and CFO Jason Robert Stewart took the virtual stage, not just to share numbers, but to paint a vivid picture of innovation, partnership, and a future powered by their cutting-edge solid-state solutions. With a fiscal year wrapping up in April 2026, the call offered a timely look at their progress with both Goliath and Stereax technologies.

Let's kick things off with Goliath, their large-format solid-state battery that’s truly designed to reshape how we think about power – particularly for electric vehicles and even everyday consumer appliances. Imagine, if you will, the kind of collaboration that pushes boundaries: Ilika is already deep in development with industry giants like Jaguar Land Rover, specifically on Goliath prototypes. And then there's Agratas, JLR's sister company, a massive player backed by Tata Sons, busy building what's slated to be the U.K.'s largest gigafactory in Bridgewater, Somerset. Their tech collaboration on Goliath batteries? It's a testament to the real-world potential brewing here.

But it's not just about cars. They're branching out, quite smartly, into other sectors too. Take their work with Brompton, for instance – yes, the iconic U.K. bike manufacturer and exporter. They're exploring Goliath 10 Ampere cells for an e-bike range, which frankly, sounds like a fantastic fit for a company known for innovation. And the numbers speak for themselves, don't they? The team at Balance Batteries, an automotive consultancy, modeled a Goliath battery in a Hyundai Ioniq 5, and the results were, well, rather impressive: a potential 20% weight saving, a 20% boost in range, and slashing charging time from 18 to a mere 12 minutes. That's the kind of performance that genuinely moves the needle.

Operationally, they're not sitting still. Their megawatt-hour pilot line, now automated, is humming along at the UKBIC (U.K. Battery Industrialisation Centre), capable of churning out up to 20,000 10Ah batteries annually – a capacity of 1.5 megawatt hours per year. It's a tangible step towards scaling, and they've already shipped batches of these cells to various OEMs and Tier 1 companies for evaluation – getting those crucial real-world tests underway. And for those concerned about safety, a defense agency advising the U.K. Ministry of Defense has given Goliath a positive safety validation, which, you know, offers a real sense of reassurance. All this, bolstered by significant grant funding from the U.K.'s Battery Innovation Program and the Advanced Propulsion Centre, truly shows the strategic national importance of what Ilika is building.

Now, let's pivot to Stereax, Ilika's miniature solid-state battery, a true marvel of tiny engineering. This isn't about powering cars; it's about enabling life-changing technology. Think active implantable medical devices – things like orthopedic implants, neurostimulation, and even advanced ophthalmic applications. These are the kinds of innovations that demand reliable, long-lasting, and incredibly small power sources, and Stereax is stepping up to the plate. The company holds 88 granted patents across multiple jurisdictions, underscoring their intellectual property strength in this niche.

They've already begun delivering M300 batteries to customers, a significant milestone. And a major part of this story is their partnership with Cirtec Medical. Cirtec, based in the U.S., is not just a licensee; they're manufacturing Stereax batteries and handling the sales of electrodes, which means Ilika is now seeing profit share and royalties – a clear validation of the technology's commercial viability. We even saw the first revenues, about £100,000, trickle in from these electrode sales starting late February/early March 2026. It’s a compelling start, and with a portfolio boasting 16 customers and 19 orders already across various applications, including those easier-to-navigate Class II medical devices, the future for Stereax in these critical medical and IoT applications looks incredibly promising.

Of course, an earnings call wouldn't be complete without a look at the financials, which, as always, tell a nuanced story for a company in deep R&D and commercialization phases. For the year ending April 2026, Ilika reported a revenue of £1.1 million, which remained steady year-on-year. It's worth noting that a portion of this, specifically £100,000, came from those Stereax electrode sales to Cirtec, marking the true beginning of their commercial revenue stream in that segment. They also benefited from a solid £1 million in grant income, a testament to the recognized potential of their work.

However, as is often the case with innovative companies scaling up, their EBITDA loss, excluding share-based payments, did widen a bit, hitting £6.2 million compared to £5.2 million the prior year. This increase isn't necessarily a red flag; it largely reflects increased material consumption as they ramped up production for the 10 Ampere Goliath batteries and, importantly, the expensing of Stereax development costs once that segment started generating revenue. So, it's really about investing in future growth. Consequently, the loss per share stood at 4.02p, up from 3.5p previously. They closed the fiscal year with a cash balance of £5.3 million, though it’s important to remember this figure doesn't include the fresh capital raised in July, which will undoubtedly bolster their position further.

Looking at the broader market, Ilika operates within a dynamic and ever-evolving landscape. The International Energy Agency's data clearly shows a continued surge in global EV sales, with China leading the charge and Europe experiencing robust growth, around 27% in 2025, and the U.K. following suit. Interestingly, the U.S. saw a slight dip in new EV sales, perhaps a consequence of incentive removals, which just goes to show how sensitive markets can be to policy shifts.

Closer to home, the U.K.'s Office of Budget Responsibility made a pretty bold prediction in late 2025: they expect the majority of all cars on U.K. roads to be electric by 2035. That's a significant shift, creating a clear runway for battery innovators like Ilika. And let's not forget the geopolitical stage; increased oil prices in the first half of 2026, likely fueled by broader regional uncertainties – the source mentions 'war in Iran,' which generally points to wider geopolitical tensions affecting oil supply – have certainly added another layer of urgency and acceleration to EV registrations worldwide. All in all, the macro environment seems to be very much aligned with Ilika's strategic direction.

So, as we close the book on Ilika's Q4 2026, what we really see is a company at the cusp. They're not just developing technology; they're forging critical partnerships, achieving significant operational milestones, and navigating the complex but exciting path from innovation to commercialization. With Goliath poised to redefine electric transport and Stereax set to revolutionize medical devices, Ilika plc truly embodies the spirit of groundbreaking innovation. It will be fascinating to watch their journey unfold as they continue to power the future, one solid-state battery at a time.