Nano One Runs Arkansas Lithium Carbonate Through Its One-Pot Line

Nano One Materials has produced LFP cathode active material and in-house battery test cells using battery-quality lithium carbonate supplied by Standard Lithium from the pilot plant at its South West Arkansas Project, processed through Nano One’s One-Pot method.

Two Canadian-listed companies working on opposite ends of the same supply chain have joined their pieces together. Nano One Materials, a process technology firm specializing in lithium-ion cathode active materials, has produced lithium iron phosphate (LFP) cathode active material and in-house battery test cells using battery-quality lithium carbonate supplied by Standard Lithium from the pilot plant at its South West Arkansas Project. The carbonate was run through Nano One’s proprietary One-Pot process, the company’s alternative route to conventional cathode manufacturing.

Stated plainly: brine chemistry from southern Arkansas has now been carried through to a finished cathode powder and into cells that can be tested. That is the step that separates a lithium project’s marketing deck from a qualified feedstock, and it is the step battery buyers care about.

Why the qualification step is the hard part

Lithium carbonate is not a commodity in the way that, say, copper cathode is. Cell makers and cathode producers specify it tightly — impurity profiles, particle characteristics, consistency batch to batch — because a trace contaminant that would be invisible in most industrial uses can degrade cycle life or trip a safety margin in a finished cell. A new producer does not simply sell into the market; it has to be qualified, sample by sample, by the customers downstream.

That is what makes the collaboration reported by Charged EVs more substantive than a memorandum of understanding. Material from the South West Arkansas pilot plant was not merely analyzed in a lab; it was converted into LFP cathode active material and then built into test cells. Each of those stages is a filter. Carbonate that looks acceptable on a certificate of analysis can still cause problems when it meets iron and phosphate at temperature.

The chemistry choice matters too. LFP — lithium iron phosphate — uses no nickel and no cobalt, which strips out the two most geopolitically fraught inputs in the cathode basket. It has become the default for standard-range electric vehicles and, increasingly, for grid-scale storage, where cycle life and cost per kilowatt-hour outrank energy density. It is also a chemistry overwhelmingly manufactured in China. Any credible North American LFP chain needs a domestic lithium unit and a domestic cathode unit, and until now those two halves have largely been discussed separately.

What One-Pot is trying to displace

Nano One’s pitch rests on its One-Pot process, which the company positions as a shorter route to cathode active material than the conventional multi-step approach. Standard LFP production involves sequential mixing, milling, drying and calcination stages, each adding capital cost, energy consumption and process water. Compressing those steps is the commercial argument: fewer unit operations means a smaller plant footprint and, in theory, a cost structure that can survive against incumbent Asian producers without permanent subsidy.

Feeding that process with lithium carbonate produced on the same continent closes a loop. It also gives Nano One something concrete to show prospective cell-maker customers — not a process demonstrated on imported reference material, but on carbonate from an identified North American source with a named project behind it.

Arkansas brine moves from resource to product

For Standard Lithium, the value runs the other way. The South West Arkansas Project sits in the Smackover Formation, a brine play in the US Gulf region that has drawn steady interest as an alternative to South American brine and Australian spodumene. A pilot plant proves a producer can make carbonate. A downstream partner turning that carbonate into working cells proves it can make carbonate someone wants to buy.

That distinction tends to show up eventually in how a project is financed. Offtake agreements, debt packages and strategic investment all become easier conversations once a technical qualification exists rather than a promise of one. It does not, on its own, guarantee any of them.

How the market is reading it

Shares trading under the symbol SLI were quoted at 2.60 as of 15:24 GMT on 26 August 2026, up 1.17% on the day from a previous close of 2.57, with an intraday range of 2.55 to 2.63 — a modest move, and one that sits inside the day’s normal trading band rather than signaling a re-rating.

The backdrop was flat. The S&P 500 tracker was at $765.86, off 0.01% on the day; the Nasdaq 100 proxy stood at $710.13, down 0.08%; the Dow 30 fund was at $534.11, lower by 0.21%. In other words, the broad market gave no directional lead, and the small gain in the lithium name was its own.

One clarification for readers scanning tickers: CAM in this story is an industry acronym for cathode active material, not a stock symbol attached to either company involved.

What would confirm this is more than a pilot

Several things would turn a technical milestone into a commercial one, and none of them has been announced. The first is a formal offtake or supply arrangement between the two companies, with volumes and duration attached. The second is qualification by a third party — a cell manufacturer or an automaker — of cathode made from this carbonate, since Nano One’s own test cells are an internal check rather than a customer’s sign-off.

The third is scale. Pilot-plant output is measured in quantities that would not fill a single day at a commercial cathode plant. Moving from pilot carbonate to contracted tonnes requires a final investment decision on a commercial facility, and the timeline for that at South West Arkansas has not been set out in what has been disclosed here.

The fourth is cost. LFP competes on price above almost everything else. A North American chain can carry a premium for supply security and policy eligibility, but not an unlimited one. Whether One-Pot delivers the cost reduction it claims at commercial volumes, using this feedstock, remains the open question that no pilot answers.

For now, what exists is a verified handoff: Arkansas brine to battery-quality carbonate to LFP cathode to a working test cell, inside a single announced collaboration. In a supply chain where most links are still theoretical, a proven one is worth noting.

Key facts

• SLI share price: 2.60, +1.17% on the day, as of 15:24 GMT, 26 Aug 2026
• Material qualified: Battery-quality lithium carbonate from Standard Lithium’s South West Arkansas pilot plant
• Process used: Nano One’s One-Pot process, producing LFP cathode active material
• Downstream validation: In-house battery test cells built by Nano One from the resulting cathode

Frequently asked questions

What did Nano One actually produce?

Nano One Materials produced lithium iron phosphate (LFP) cathode active material and then built in-house battery test cells from it. The feedstock was battery-quality lithium carbonate supplied by Standard Lithium from its South West Arkansas Project pilot plant, processed through Nano One’s proprietary One-Pot method rather than a conventional multi-step cathode route.

Why does qualifying lithium carbonate matter?

Cathode and cell producers specify lithium carbonate very tightly, because trace impurities that are harmless in other industrial uses can shorten cycle life or compromise safety in a finished cell. A new lithium producer must therefore be qualified sample by sample by downstream buyers before it can sell commercially, which is a slower process than simply proving it can make the chemical.

What is LFP and why is it significant?

LFP stands for lithium iron phosphate, a cathode chemistry that contains no nickel and no cobalt. That removes the two most supply-constrained and geopolitically sensitive inputs in the battery basket. LFP now dominates standard-range electric vehicles and grid-scale storage, where long cycle life and low cost per kilowatt-hour matter more than maximum energy density.

What is the One-Pot process?

One-Pot is Nano One’s proprietary approach to making cathode active material. Conventional LFP production runs through sequential mixing, milling, drying and calcination stages, each adding capital cost, energy use and process water. Nano One positions One-Pot as a shorter route with fewer unit operations, which is the basis of its claimed cost and footprint advantage over incumbent producers.

How did the shares react?

Shares trading under the symbol SLI were quoted at 2.60 as of 15:24 GMT on 26 August 2026, up 1.17% from a previous close of 2.57, within an intraday range of 2.55 to 2.63. Broad markets were flat that session, with the S&P 500 tracker at $765.86 and the Nasdaq 100 proxy at $710.13, both marginally lower.

What has not been announced?

No offtake or supply agreement between the two companies, with volumes and duration, has been disclosed. Nor has third-party qualification by a cell maker or automaker, a final investment decision on commercial-scale carbonate production at South West Arkansas, or any cost figures demonstrating that the combined chain can compete with established LFP suppliers on price.

Sources

• Nano One and Standard Lithium collaborate to qualify lithium carbonate for LFP cathodes — Charged EVs

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