Sign In or Create an Account.

By continuing, you agree to the Terms of Service and acknowledge our Privacy Policy

Sparks

There’s Gold in That There Battery Waste

Aepnus is taking a “fully circular approach” to battery manufacturing.

Lithium ion batteries.
Heatmap Illustration/Getty Images

Every year, millions of tons of sodium sulfate waste are generated throughout the lithium-ion battery supply chain. And although the chemical compound seems relatively innocuous — it looks just like table salt and is not particularly toxic — the sheer amount that’s produced via mining, cathode production, and battery recycling is a problem. Dumping it in rivers or oceans would obviously be disruptive to ecosystems (although that’s generally what happens in China), and with landfills running short on space, there are fewer options there, as well.

That is where Aepnus Technology is attempting to come in. The startup emerged from stealth today with $8 million in seed funding led by Clean Energy Ventures and supported by a number of other cleantech investors, including Lowercarbon Capital and Voyager Ventures. The company uses a novel electrolysis process to convert sodium sulfate waste into sodium hydroxide and sulfuric acid, which are themselves essential chemicals for battery production.

“It's a fully circular approach,” Bilen Akuzum, Aepnus’ co-founder and CTO, told me. “Rather than in the current paradigm where companies are buying chemicals and having to deal with disposing of the waste, we can co-locate with them and they give us the waste, and we give them back the chemicals.” This recycling process, he says, can happen an indefinite number of times.

Akuzum told me that companies using Aepnus’ tech can “speed up their environmental permits because they're not going to be producing that waste anymore. Instead, they can just turn it into value.” In an ideal scenario, this could increase domestic production of critical minerals and battery components, which will decrease the U.S.’s reliance on China, a major goal of the Biden administration. On-site chemicals production will also help to decarbonize the supply chain, as it eliminates the need for these substances to be trucked into remote mining sites or out to battery manufacturing and recycling facilities.

To do the chemical recycling, Aepnus has developed an electrolysis system that it says is 50% more efficient than the processes normally used to produce sodium hydroxide, and is uniquely tailored to process sodium sulfate waste. Energy nerds might associate electrolysis with the pricey production of green hydrogen, but this has actually always been the process by which sodium hydroxide is made.

Making sulfuric acid, however, doesn’t traditionally involve electrolysis, but because sodium hydroxide is the more valuable of the two chemicals, combining their production via a single, more efficient electrochemical process gives Aepnus a much better chance at being cost competitive with other chemical producers than, say, the likelihood of green hydrogen being cost competitive with natural gas. Akuzum told me that the company’s electrolyzers can operate at lower voltages and higher temperatures than the industry standard, thereby increasing efficiency, and don’t require rare earth elements, thereby reducing costs.

Ultimately, Akuzum said that Aepnus aims to become an electrolyzer manufacturer rather than a chemicals producer. “We just want to be the technology provider and almost like application agnostic in a sense that this [the battery industry] is just the first market that we're going after,” Akuzum told me, citing a number of other potential markets such as textile and pigment manufacturing, which also produce sodium sulfate waste.

The company is currently working to get initial customers onboard for pilot demonstrations, which are planned to take place over the next 18 months. In the extended near term, Aepnus wants to expand its platform to produce a greater variety of chemicals. As the tech scales and is deployed across various industries, the company says it has potential to mitigate a total of 3 gigatons of greenhouse gas emissions between now and 2050, as calculated by Clean Energy Ventures’ Simple Emissions Reduction Calculator.

Blue

You’re out of free articles.

Subscribe today to experience Heatmap’s expert analysis 
of climate change, clean energy, and sustainability.
To continue reading
Create a free account or sign in to unlock more free articles.
or
Please enter an email address
By continuing, you agree to the Terms of Service and acknowledge our Privacy Policy
Sparks

Trump’s Pro-Gas, Transition-Skeptical Pick to Run the Nation’s Energy Data

Tristan Abbey would come to Washington from a Texas think tank that argues peak oil is way off base.

Donald Trump.
Heatmap Illustration/Getty Images

Donald Trump’s pick to run the Energy Information Administration works for a think tank that denies the existence of an energy transition.

The Energy Information Administration is the nation’s primary energy fuel and power forecasting agency. Since its inception in 1977, EIA has become a go-to source of data for many U.S. businesses, analysts, and policymakers alike. The agency’s previous administrators have been relatively apolitical academics and industry experts, including under the first Trump administration, whose EIA administrator came to the role from a faculty position at Rice University. The office’s current acting administrator is Stephen Nalley, who was appointed deputy administrator by Trump in 2018 after serving in various other roles at the agency.

Keep reading...Show less
Blue
Sparks

Why Are AI Stocks Falling Again?

Microsoft is canceling data center leases, according to a Wall Street analyst.

Microsoft headquarters.
Heatmap Illustration/Getty Images

The artificial intelligence industry is experiencing another TD Cowen shock.

The whole spectrum of companies connected to artificial intelligence — the companies that design the chips, that supply the power, that make the generation equipment — shuddered Wednesday when the brokerage released another note from analysts pointing to evidence that Microsoft was giving up on its data center leases.

Keep reading...Show less
Sparks

The IRS Is Taking Mercy on Electric Car Buyers

The tax agency reopened its online portal to allow dealerships to register sales retroactively.

The IRS building.
Heatmap Illustration/Getty Images

As recently as last month, some electric vehicle buyers were running into roadblocks when they tried to claim the EV tax credit on their 2024 returns. Their claims were rejected, it turned out, because the dealership where they bought their EV never registered the sale with the Internal Revenue Service.

On Wednesday, the IRS instituted a fix: It reopened the online portal for dealerships to report these sales retroactively.

Keep reading...Show less
Green