Houston scientists develop 'recharge-to-recycle' reactor for lithium-ion batteries

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Rice University scientists' “recharge-to-recycle” reactor has major implications for the electric vehicle sector. Photo courtesy Jorge Vidal/Rice University.

Engineers at Rice University have developed a cleaner, innovative process to turn end-of-life lithium-ion battery waste into new lithium feedstock.

The findings, recently published in the journal Joule, demonstrate how the team’s new “recharge-to-recycle” reactor recharges the battery’s waste cathode materials to coax out lithium ions into water. The team was then able to form high-purity lithium hydroxide, which was clean enough to feed directly back into battery manufacturing.

The study has major implications for the electric vehicle sector, which significantly contributes to the waste stream from end-of-life battery packs. Additionally, lithium tends to be expensive to mine and refine, and current recycling methods are energy- and chemical-intensive.

“Directly producing high-purity lithium hydroxide shortens the path back into new batteries,” Haotian Wang, associate professor of chemical and biomolecular engineering, co-corresponding author of the study and co-founder of Solidec, said in a news release. “That means fewer processing steps, lower waste and a more resilient supply chain.”

Sibani Lisa Biswal, chair of Rice’s Department of Chemical and Biomolecular Engineering and the William M. McCardell Professor in Chemical Engineering, also served as co-corresponding author on the study.

“We asked a basic question: If charging a battery pulls lithium out of a cathode, why not use that same reaction to recycle?” Biswal added in the release. “By pairing that chemistry with a compact electrochemical reactor, we can separate lithium cleanly and produce the exact salt manufacturers want.”

The new process also showed scalability, according to Rice. The engineers scaled the device to 20 square centimeters, then ran a 1,000-hour stability test and processed 57 grams of industrial black mass supplied by industry partner Houston-based TotalEnergies. The results produced lithium hydroxide that was more than 99 percent pure. It also maintained an average lithium recovery rate of nearly 90 percent over the 1,000-hour test, showing its durability. The process also worked across multiple battery chemistries, including lithium iron phosphate, lithium manganese oxide and nickel-manganese-cobalt variants.

Looking ahead, the team plans to scale the process and consider ways it can sustain high efficiency for greater lithium hydroxide concentrations.

“We’ve made lithium extraction cleaner and simpler,” Biswal added in the release. “Now we see the next bottleneck clearly. Tackle concentration, and you unlock even better sustainability.

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Ace Green Recycling has secured a deal that will supply 100 percent of its phase one recycling capacity at its forthcoming Texas flagship facility. Photo courtesy Ace Green Recycling.

Houston battery recycling company signs 15-year deal to supply Texas flagship facility

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Houston- and Singapore-headquartered Ace Green Recycling, a provider of sustainable battery recycling technology solutions, has secured a 15-year battery material supply agreement with Miami-based OM Commodities.

The global commodities trading firm will supply Ace with at least 30,000 metric tons of lead scrap annually, which the company expects to recycle at its planned flagship facility in Texas. Production is expected to commence in 2026.

"We believe that Ace's future Texas facility is poised to play a key role in addressing many of the current challenges in the lead industry in the U.S., while helping the country meet the growing domestic demand for valuable battery materials," Nishchay Chadha, CEO and co-founder of Ace, said in a news release. "This agreement with OM Commodities will provide us with enough supply to support our Texas facility during all of its current planned phases, enabling us to achieve optimal efficiencies as we deploy our solutions in the U.S. market. With OM Commodities being a U.S.-based leader in metals doing business across the Americas and Asia with a specialty in lead batteries, we look forward to leveraging their expertise in the space as we advance our scale-up efforts."

The feedstock will be sufficient to cover 100 percent of Ace's phase one recycling capacity at the Texas facility, according to the statement. The companies are also discussing future lithium battery recycling collaborations.

"Ace is a true pioneer when it comes to providing an environmentally friendly and economically superior solution to recycle valuable material from lead scrap," Yiannis Dumas, president of OM Commodities, added in the news release. "We look forward to supporting Ace with lead feedstock as they scale up their operations in Texas and helping create a more circular and sustainable battery materials supply chain in the U.S."

Additionally, ACE shared that it is expected to close a merger with Athena Technology Acquisition Corp. II (NYSE: ATEK) in the second half of 2025, after which Ace will become a publicly traded company on the Nasdaq Stock Market under the ticker symbol "AGXI."

"As we continue to scale our lead and lithium battery recycling technologies to help support the markets for both internal combustion engines and electric vehicles, we expect that our upcoming listing will be a key accelerator of growth for Ace,” Chada said.

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Houston subsea firm Zupt acquired in offshore tech deal

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Houston-based Zupt LLC, a provider of advanced metrology, inspection, and engineering services for offshore energy and renewable projects, has been acquired by Columbus, Ohio-based Rosenxt Holding USA for an undisclosed amount.

Rosenxt says the deal, which closed July 21, represents another step in its long-term strategy to build a portfolio of technology and engineering capabilities for the subsea market in the energy sector.

“Our ambition has always been to think decades ahead,” Hermann Rosen, chairman of Switzerland-based Rosenxt Group, the parent company of Rosenxt Holding USA, said in a news release.

“The future of subsea and offshore industries will be shaped by intelligent technologies that fundamentally change how critical infrastructure is explored, installed, inspected and operated,” he added. “Zupt is another important building block in this vision.”

Rosenxt says offshore operators and installation contractors face pressure to execute subsea projects more efficiently amid workforce shortages, weather concerns, tougher safety standards, and rising capital and operating expenses.

“The offshore sector continues to embrace technologies that enhance data quality, reduce operational risk, and improve decision-making across the asset lifecycle,” Houston M&A attorney Amelia Zhang, who led law firm Norton Rose Fulbright’s representation of Zupt, added in the release.

Rosenxt provides services for the subsea market that combine sensing, robotics, AI, analytics and engineering. Zupt complements those services with offerings for operations, such as high-resolution 3D inspection, digital twin generation, and inspection and engineering technologies for subs.

Zupt President Keith Vickery founded the company in 2005.

Vickery says Zupt “has focused on solving some of the subsea industry’s most demanding marine construction and inspection challenges through innovative engineering, operational experience, and close collaboration with our customers.”

Mordor Intelligence estimates the value of the subsea market will climb from $19.75 billion this year to $25.03 billion in 2031. North America represents the largest segment of the global market.

Houston energy tech company Molecule makes gas operations acquisition

software acquisition

Houston-based energy trading risk management (ETRM) software company Molecule has announced the acquisition of Dallas-based Trilogy Energy Solutions.

Molecule CEO Patrick Smith called the deal a "defining moment" for the company, as it allows Molecule's platform to expand to include physical gas operations.

“For years, this industry has drawn the ETRM box too small, creating inefficient silos by treating trading and physical operations as separate budgets and separate problems, when the real cost lives in the handoffs between them," Smith said in a news release. "Trilogy’s domain expertise in physical gas operations closes that gap. Together, we can give producers, midstream operators, and trading desks something the market has been asking for: a single, integrated view from wellhead to trading desk, without the manual reconciliation, spreadsheet workarounds, and legacy handoffs that slow the industry down.”

Trilogy, founded in 2014, is a provider of cloud-based software for the day-to-day logistics of physical natural gas operations. The platform allows users—including producers, marketers, midstream companies, pipeline operators and others—to manage activities such as pipeline nominations, gas gathering operations and more. Thus far, Molecule's platform has focused on energy trading and managing financial and commercial activities.

Through the acquisition, the combined company will now offer a full-stack enabled ETRM and energy operating system. Users of both platforms can expect continuity of service, according to the companies.

“Molecule has always been about meeting trading teams where they actually work, focused on being fast, accurate, and deeply integrated into their day-to-day workflow,” Sameer Soleja, founder and president of Molecule, added in the release. “Bringing Trilogy into the Molecule family extends that mission from the trading desk into the physical operations of the gas business. The two platforms complement each other exceedingly well, and the combined product will be able to offer all-in-one capabilities that lead the ETRM market, both in its tech-forward nature, and in its depth.”

Molecule expects the combined platform to help users reduce manual month-end close work, cut costs, and improve data accuracy and decision-making.

Trilogy's Chief Product Officer Jeremy Frye will join the Molecule team, along with others from Trilogy.

“Trilogy has spent decades building the trust of companies across the physical natural gas industry by delivering software that stands up to the demands of physical gas operations... It’s a rare combination that brings the best of both worlds, and I’m energized about what our teams will build together,” Frye added in the release.

California-based Sundance Growth, an existing investor in Molecule, supported the acquisition. The software growth equity firm raised a $125 million debut fund in 2025 and focuses on B2B SaaS companies.

Sundance led Molecule's Series B round, which closed last summer for an undisclosed amount. At the time, Soleja said the funding would allow Molecule to "double down on product innovation, grow our team, and reach even more markets."

Houston private equity firm's nuclear acquisition tops energy news to know

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Editor's note: The biggest energy transition headlines to close out July include a major acquisition and Department of Energy investments in Houston-led projects. Below are the five most-read stories published on EnergyCapitalHTX, July 15-31, 2026:

1. Houston PE firm makes latest nuclear industry acquisition

Houston-based private equity firm Pelican Energy Partners has acquired California-based Veridiam for an undisclosed amount in an effort to further increase the firm’s focus on the nuclear energy sector. Veridiam is a strategic manufacturer that specializes in the precision fabrication of components and assemblies made from exotic metals or advanced alloys for the nuclear, aerospace, defense, space and medical fields. Continue reading.

2. 4 Houston researchers awarded projects in DOE's Genesis Mission

The U.S. Department of Energy has named the nearly 300 projects selected under the Trump Administration's Genesis Mission, which aims to address some of the largest science and technology challenges in the country. The group features four projects from Houston universities and companies. The initiative aims to unite government, industry, academia and philanthropy to lead to breakthroughs in energy, scientific discovery and national security. Continue reading.

3. Shell strikes $1.8B deal to offload solar and wind assets in India

Reflecting its ongoing de-emphasis of renewable energy, oil and gas giant Shell has agreed to sell its solar and wind power business in India for $1.8 billion. Aditya Birla Renewables Ltd. (ABRen) is the pending buyer of Solenergi Power Private Ltd., including the Sprng Energy group of companies. Sprng Energy develops, owns and operates utility-scale solar and wind power facilities in India. Shell, whose U.S. headquarters is in Houston, acquired Solenergi in 2022 for $1.55 billion. Continue reading.

4. Houston company lands first deal from new Blackstone energy transition fund

Asset manager Blackstone has agreed to buy Houston-based Dresser Utility Solutions from Connecticut private equity firm First Reserve for an undisclosed amount. First Reserve has a major presence in Houston. The deal represents the first investment from Blackstone Energy Transition Partners V. “Blackstone’s deep resources and experience in the utility sector make them an ideal partner as we continue to invest in innovation, expand our product portfolio, and deliver value for our customers,” Dresser CEO David Evans said. Continue reading.

5. KBR appoints C-suite duo to lead forthcoming spinoff

In advance of the spinoff of its Mission Technology Solutions unit, Houston-based KBR has made two C-suite hires for the new business. Michael LaRouche is coming aboard as president and CEO of the spinoff, currently called SpinCo, on Sept. 26. Nicholas Veasey joined as executive vice president and chief financial officer on July 1. Continue reading.

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