Electroflow Technologies

Here is a fact that sounds like a rounding error but is closer to a national-security memo: roughly 99% of the world's lithium iron phosphate - LFP, the increasingly dominant cathode material inside electric-vehicle and grid-storage batteries - is made in China. Not most of it. Nearly all of it. If you are an American company that wants to build a battery, you are, at the chemistry level, importing the chemistry.

Electroflow Technologies, a startup founded in 2023 and headquartered in San Bruno, California, has decided this is a business opportunity rather than a permanent condition. The company's pitch is disarmingly literal. North American brines - the salty, unglamorous water that pools underground and at geothermal sites - contain, by the company's telling, enough lithium to produce over 300 million electric vehicles. That lithium has been, in the company's phrase, "barely touched." Not because it isn't there. Because the traditional ways of getting it out are slow, thirsty, chemical-hungry, and, crucially, uneconomical when the brine is dilute.

Most lithium companies chase rich brines, the high-concentration stuff where the economics are forgiving. Electroflow went the other direction and aimed at the dilute, low-grade brines everyone else skips. This is either contrarian or foolish, and the difference between the two is entirely a question of whether the technology works. The interesting thing about Electroflow is that the technology is not a new molecule or an exotic catalyst. It is, roughly, a battery run backwards.

The core of the system is an electrochemical cell containing lithium-selective electrodes. Run current one way and the anodes absorb lithium ions out of the brine. Run it the other way and they release those ions into carbonate-rich water, producing lithium carbonate. That carbonate then gets reacted with iron and phosphate to make LFP powder. If you have ever charged and discharged a phone, you have intuited the whole mechanism. The company's co-founder and CEO, Eric McShane, has put the stakes plainly: "LFP is the missing ingredient for energy prosperity. The problem is it's literally 99% made in China."

The conventional route from brine to LFP is a roughly ten-step affair, and every step is a place to lose lithium, spend water, or add cost. Electroflow's claim is that collapsing those ten steps into three does three things at once: it keeps more of the lithium, it slashes the inputs, and it shortens the supply chain to the point where the material can plausibly be made near where it's used. The energy budget is almost comically small - producing 50 metric tons of lithium a year, the company says, draws about as much electricity as a single average American household. "We're using minimal energy, minimal chemicals, minimal water," McShane has said. It is the kind of sentence that is easy to say and hard to engineer.

None of this is finished. A demonstration plant is a demonstration, not a supply chain, and the sub-$2,500-per-ton figure that makes the whole pitch work is a full-scale projection, not a shipped invoice. The first-generation system is expected to run above incumbent pricing before the economics bend. Competing against 99% of global production is the kind of goal that reads as either naive or necessary, depending on the decade.

But the shape of the bet is clear, and it's a good one to watch: take the resource everyone ignored, remove most of the steps, use almost none of the inputs, and make the material where it's needed. If it works, the most interesting thing about your next battery might be that its chemistry has a US zip code.