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2 Houston startups join Greentown Labs' BIPOC-led accelerator program

seeing green

From potato-starch-based bioplastics startups to companies developing carbon-coated silicon anodes, here's who's joining Greentown Labs and Browning the Green Space's ACCEL program. Photo via browningthegreenspace.org

Greentown Labs and Browning the Green Space announced the newest cohort for its Advancing Climatetech and Clean Energy Leaders Program, or ACCEL, which works to advance BIPOC-led startups in the climatetech space.

Two Houston companies and one from Austin are among the eight startups to be named to the 2025 group.

“The startups selected for the third ACCEL cohort represent a phenomenal range of energy and climatetech innovations, which underscores our belief that everyone and many solutions must play a role in our community’s collective decarbonization efforts,” Georgina Campbell Flatter, Greentown’s new CEO, said in a release. “We’re proud to welcome these entrepreneurs to our community and eager to see all they’ll achieve throughout the program and beyond!”

Each of the early-stage startups within the cohort will receive $25,000 in non-dilutive grant funding and participate in the year-long program focused on product and technology development, market development, fundraising and management, and team development, according to Greentown. The curriculum is led by VentureWell, a nonprofit with expertise in venture development in climatetech.

The Houston companies include:

  • Carbonext, founded by Olanrewaju Tanimola. The company is leveraging its proprietary, off-the-shelf 3D-graphene technology to develop integrated solutions with carbon-coated silicon anodes to address challenges in the graphite ecosystem, as well as lithium-battery anodes.
  • PLASENE, founded by Sohel Shaikh, Alper Gulludag and Romolo Raciti. The company offers an innovative platform that converts plastic waste into liquid fuel and low-carbon hydrogen through its proprietary catalysts and modular, scalable, pre-engineered units

The remaining six companies are:

  • Inductive Robotics, founded in Austin by Madhav Ayyagari and David Alspaugh. The startup deploys autonomous robots that deliver EV charging directly to parked vehicles in commercial parking facilities, using a subscription-based model.
  • Andros Innovations, founded in Cambridge, Massachusetts by Laron Burrows. The startup has developed a reactor that produces ammonia more cheaply, cleanly and safely than traditional methods do.
  • FAST Metals, founded in Worcester, Massachusetts by Sumedh Gostu and Anthony Staley. It has developed a hydrometallurgical-recovery process capable of extracting iron, aluminum, scandium, titanium, and other rare-earth elements from industrial tailings.
  • Respire Energy, founded in Boston by Dave Hsu, Xiaowei Teng, and Candy Wong. The energy storage startup has developed a safe, low-cost, and long-duration metal-air battery designed for microgrids.
  • Tato Labs, founded in Brooklyn by Mecca McDonald and Mia Dunn. It is developing scalable, innovative, bioplastic products and packaging solutions that leverage potato starch, protect and preserve the natural ecosystem, and minimize plastic waste.
  • Thola, founded in Portland, Maine, by Nneile Nkholise and Lerato Takana. The company provides an on-demand marketplace for commercial-building sustainability and safety management, with a mission to decarbonize old buildings.

ACCEL is supported by the Massachusetts Clean Energy Center (MassCEC), Shell, Equinor, the Growth Capital Division of MassDevelopment, Microsoft and the Barr Foundation.

The accelerator has supported 13 early-stage startups since it was founded in 2023, resulting in $325,000 in grant funding. Houston companies have been represented in each cohort. Click here to see the 2024 cohort and here to see the inaugural 2023 cohort.

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Standard Lithium retaining operatorship, while Equinor will support through its core competencies, like subsurface and project execution capabilities. Photo via Equinor.com

Equinor makes big investment into lithium projects in Arkansas, East Texas

eyes on LI

A Norwegian international energy company has entered into a deal to take a 45-percent share in two lithium project companies in Southwest Arkansas and East Texas.

Equinor, which has its U.S. headquarters in Houston, has reached an agreement with Vancouver, Canada-based Standard Lithium Ltd. to make the acquisition. Standard Lithium retaining operatorship, while Equinor will support through its core competencies, like subsurface and project execution capabilities.

“Sustainably produced lithium can be an enabler in the energy transition, and we believe it can become an attractive business. This investment is an option with limited upfront financial commitment. We can utilise core technologies from oil and gas in a complementary partnership to mature these projects towards a possible final investment decision,” says Morten Halleraker, senior vice president for New Business and Investments in Technology, Digital and Innovation at Equinor, in a news release.

Standard Lithium retains the other 55 percent of the projects. Per the deal, will pay $30 million in past costs net to the acquired interest. The company also agreed to carry Standard Lithium's capex of $33 million "to progress the assets towards a possible final investment decision," per the release. Additionally, Equinor will make milestone payments of up to $70 million in aggregate to Standard Lithium should a final investment decision be taken.

Lithium is regarded as important to the energy transition due to its use in battery storage, including in electric vehicles. Direct Lithium Extraction, or DLE, produces the mineral from subsurface reservoirs. New technologies have the potential to improve this production method while lowering the environmental footprint.

Earlier this month, Houston-based International Battery Metals, whose technology offers an eco-friendly way to extract lithium compounds from brine, announced that it's installing what it’s billing as the world’s first commercial modular direct-lithium extraction plant located at US Magnesium’s operations outside Salt Lake City. The plant is expected to go online later this year.

ALLY Energy celebrated over 50 honorees at its annual awards event. Photo via LinkedIn

Top Houston energy teams, individuals, and companies honored at annual awards

meet the winnenrs

The brightest stars in Houston's energy community celebrated wins at an annual awards event this week.

ALLY Energy, a company that works with its clients to make the energy industry more equitable, hosted its seventh annual GRIT Awards and Best Energy Workplaces on October 26 — and named its prestigious winners. EnergyCapitalHTX, as well as its sister site InnovationMap, was a media partner for the event.

“Every year, we are astounded at how many impressive, committed people are demonstrating leadership and grit in their work to advance the energy transition and build more diverse, equitable and inclusive workplaces,” ALLY Energy CEO Katie Mehnert says in a news release naming the finalists. “This year is no exception. This is the time to celebrate so many crucial achievements that may otherwise go overlooked in the energy sector and in broader society.”

In addition to naming its winners, ALLY celebrated three Lifetime Achievement Award honorees who have distinguished careers championing change in energy and climate in the private or public sector in the areas of technology, policy, and workforce: John Berger, CEO of Sunnova Energy; Rhonda Morris, vice president and chief human resources officer of Chevron; and Amy Chronis, vice chair, US energy and chemicals leader, and Houston managing partner at Deloitte.

The big winners of 2023 are as follows.

The Professional Award

  • Alex Loureiro, Scientific Director at EnerGeo Alliance
  • Crystal McNack, Diversity, Equity, and Inclusion Advisor at Enbridge Inc.
  • Dani Milling, Gulf of Mexico Environmental Engineer & Mexico HSE Coordinator at Chevron
  • Katie Zimmerman, Decarbonization Director, Americas at Wood
  • Mark Klapatch-Mathias, Sustainability Coordinator at the University of Wisconsin-River Falls
  • Natalie Valentine, Director - Business Performance at Worley
  • Syed Fahim, Global ESG Lead at SLB
  • Tane Bates, Regional Operations Manager at Certarus LTD
  • Ujunwa Ojemeni, Senior Policy Advisor - Energy Transition & Technical Assistance Delivery at E3G - Third Generation Environmentalism

The Executive Award

  • Cara Hair, SVP of Corporate Services, Chief Legal and Compliance Officer at Helmerich & Payne
  • Emma Lewis, Senior Vice President USGC Chemicals & Products at Shell
  • Jeremy Campbell-Wray, Strategic Accounts and Enterprise Growth Market Executive at Baker Hughes
  • Maggie Seeliger, SVP & Global Head of Strategy, Energy & Resources at Sodexo
  • Max Chan, Senior Vice President, Corporate Development Officer at Enbridge
  • Megan Beauregard, Chief Legal Officer, Secretary, and Head of Policy and Regulatory Affairs at Enel North America, Inc.
  • Sarah Delille, Vice President of US Country Management at Equinor
  • Whitney Eaton, EVP, People & Sustainability at TGS Energy

The JEDI Award

  • Jason Limerick, Sustainability Strategy Lead at Woodside Energy
  • Melina Acevedo, Associate & Partnerships Lead at DE Shaw Renewable Investments

The Entrepreneur Award

  • Charli Matthews, CEO at Empowering Women in Industry
  • Mike Francis, Co-Founder and CEO at NanoTech

The ESG & Climate Champion Award

  • Andrea Hepp, Deal Lead at Shell
  • Brittney Marshall, Senior Advisor, Climate Strategy and Policy at Woodside Energy
  • Gabriel Rolland, Vice President, Corporate QHSE at TGS Energy
  • Sandhya Ganapathy, Chief Executive Officer at EDP Renewables North America

Gritty Girl Award

  • Deepasha Baral, Student at the University of Petroleum and Energy Studies

Best Affinity Group, Employee Resource Group Award, sponsored by ChampionX

  • Baker Hughes
  • ChampionX
  • Shell
  • TPI Composites
  • Women's Energy Network Houston
  • Wood Mackenzie
  • Worley

Best Energy Team Award, sponsored by Ovintiv

  • Advisian Material Handling
  • Halliburton Labs
  • NOV Marketing
  • Syzygy Plasmonics, Rigel Manufacturing & Launch Team

Best Energy Workplaces Award

  • Aera Energy LLC
  • Baker Hughes
  • ChampionX
  • EDP Renewables North America
  • Enel
  • Global Edge Group
  • Shell
  • Southwestern Energy
  • Sunnova Energy International
  • TGS Energy
  • Wood
  • Woodside Energy
Events not to miss, Gulf Coast CCS project gets new Houston partner, and more things to know this week. Photo via Getty Images

3 things to know this week: Meet Chevron's UH fellows, Bayou Bend CCS's newest partner, can't-miss events

hou knew?

Editor's note: It's a new week — start it strong with three quick things to know in Houston's energy transition ecosystem. Meet the fellows selected for a UH-Chevron program, Equinor's involvement with Houston-area CCS project, and events not to miss this week.

Upcoming events to put on your radar

Photo via Getty Images

It's a new month — here are two energy events to have on your radar.

  • September 7 — Venture Houston is spotlighting digitization and decarbonization this year. It's a must-attend event for investors, entrepreneurs, and more.
  • September 21 — The Rice Alliance Energy Tech Venture Forum is an opportunity to learn about the latest emerging technologies, meet investors to seek funding, see promising companies, and more.

CCS project near Houston secures new local partner

The project is located in southeast Texas, about 70 miles outside of Houston. Image via equinor.com

As of last week, Equinor, which has its United States headquarters in Houston, now owns a 25 percent interest in Bayou Bend CCS LLC, one of the largest domestic carbon capture and storage projects. The project — a JV between Chevron, Talos Energy Inc., and now Equinor, is located along the Gulf Coast in southeast Texas. The terms of the deal were not disclosed.

“Commercial CCS solutions are critical for hard-to-abate industries to meet their climate ambitions while maintaining their activity," Grete Tveit, senior vice president for Low Carbon Solutions in Equinor, says in a news release. "Entering Bayou Bend strengthens our low carbon solutions portfolio and supports our ambition to mature and develop 15-30 million tonnes of equity CO2 transport and storage capacity per year by 2035. Our experience from developing carbon storage projects can help advance decarbonization efforts in one of the largest industrial corridors in the US."

In 2021, Texas General Land Office in Jefferson County, Texas, selected Talos and Carbonvert for the carbon storage lease, located in state waters offshore Beaumont and Port Arthur, Texas. Chevron joined the JV in May 2022. The project expanded earlier this year.

Meet Chevron's fellows from the University of Houston

The PhD and doctoral students will each receive a one-year $12,000 fellowship, along with mentoring from experts at UH and Chevron. Photo via UH.edu

The University of Houston has named eight graduate students to its first-ever cohort of UH-Chevron Energy Graduate Fellows. The PhD and doctoral students will each receive a one-year $12,000 fellowship, along with mentoring from experts at UH and Chevron. Their work focuses on energy-related research in fields ranging from public policy to geophysics and math. The fellowship is funded by Chevron.

“The UH-Chevron Energy Fellowship program is an exciting opportunity for our graduate students to research the many critical areas that impact the energy industry, our communities and our global competitiveness,” Ramanan Krishnamoorti, UH's Vice President for Energy and Innovation says in a statement.

“Today’s students not only recognize the importance of energy, but they are actively driving the push for affordable, reliable, sustainable and secure energy and making choices that clearly indicate that they are meaningfully contributing to the change,” he continues.

Who will be presenting at the 20th annual Rice Alliance Energy Tech Venture Forum — and more trending news from the week. Photo via rice.edu

Equinor buys into CCS project, Rice Alliance names energy startup participants, and more trending news

top stories

Editor's note: It's been a busy news week for energy transition in Houston, and some of this week's headlines resonated with EnergyCapital readers on social media and daily newsletter. Trending news included Rice Alliance naming its Energy Tech Venture Day participants, Equinor opting in to a CCS project on the Gulf Coast, and more.

Exclusive: Rice Alliance announces participants ahead of 20th annual energy symposium

Next month, 96 startups will pitch at an annual event focused on the future of energy. Here's who will be there. Photo via rice.edu

Dozens of companies will be a part of an upcoming energy-focused conference at Rice University — from climate tech startups to must-see keynote speakers.

The 20th annual Rice Alliance Energy Tech Venture Forum will take place on September 21 at Rice University’s Jones Graduate School of Business. Anyone who's interested in learning more about the major players in the low-carbon future in Houston and beyond should join the industry leaders, investors, and promising energy and cleantech startups in attendance.

This year's keynote speakers include Christina Karapataki, partner at Breakthrough Energy Ventures, the venture capital fund backed by Bill Gates; Scott Nyquist, vice chairman at Houston Energy Transition Initiative, founded by the Greater Houston Partnership; and Jeff Tillery, COO at Veriten. Read more.

Equinor buys into massive CCS joint venture project near Houston

Through an acquisition, Equinor has joined a joint venture carbon capture and storage project in southeast Texas. Image via Getty Images

A Norwegian energy company with its United States headquarters in Houston has announced it has acquired a significant chunk of a carbon capture and storage joint venture.

Equinor now owns a 25 percent interest in Bayou Bend CCS LLC, which is reported to be one of the largest domestic carbon capture and storage projects. The project — a JV between Chevron, Talos Energy Inc., and now Equinor, is located along the Gulf Coast in southeast Texas. The terms of the deal were not disclosed

“Commercial CCS solutions are critical for hard-to-abate industries to meet their climate ambitions while maintaining their activity," Grete Tveit, senior vice president for Low Carbon Solutions in Equinor, says in a news release. "Entering Bayou Bend strengthens our low carbon solutions portfolio and supports our ambition to mature and develop 15-30 million tonnes of equity CO2 transport and storage capacity per year by 2035. Our experience from developing carbon storage projects can help advance decarbonization efforts in one of the largest industrial corridors in the US." Read more.

New Houston company launches to turn recycled materials into fuel

Tired of slow tire decomposition? This Houston company has a solution. Photo via InnoVentRenewables.com

Every year, over a billion tires are disposed of globally, and, while in use, tires are used to reach maximum speed on the road, their decomposition times are inordinately slow.

Houston-based InnoVent Renewables has a solution. The company launched this week to drive renewable energy forward with its proprietary continuous pyrolysis technology that is able to convert waste tires, plastics, and biomass into fuels and chemicals.

“We are thrilled to formally launch InnoVent Renewables and plan to ramp-up operations into early 2024," InnoVent Renewables CEO Vibhu Sharma says in a news release. “Our investors, strategic advisors, and management team are all fully committed to our success as we address the global challenge of waste tires. We firmly believe our proven process, deployed at scale globally, will have a huge positive impact on our climate and fill a clear environment need.” Read more.

French company to acquire Houston-based battery storage startup in $1B deal

Broad Reach Power's battery storage assets piqued a French company's interest. Photo via broadreachpower.com

A French utility company is buying the bulk of Houston-based Broad Reach Power’s battery energy storage business in a deal carrying an equity value of more than $1 billion.

Engie, has agreed to purchase the majority of the startup’s battery storage business from EnCap Energy Transition Fund I and three investment partners — New York City-based Yorktown Partners, Switzerland-based Mercuria Energy, and New York City-based Apollo Infrastructure Funds.

“This acquisition is fully in line with Engie’s strategy: It will contribute to the development of a low-carbon, affordable, and resilient energy system where flexible assets will play a critical role alongside renewables,” says Catherine MacGregor, the utility’s CEO. Read more.

How this 78-year-old Houston chemical company is evolving as an energy tech leader

“When we were founded, we were a chemical company. Today, we have morphed into a technology company,” says Kendra Lee, CEO of Merichem. Photo via LinkedIn

Kendra Lee had no designs on running the family business.

“In fact, I never planned on being a part of Merichem,” Lee recalls.

In 1945, Lee’s grandfather, John T. Files, and a pair of business partners founded the company in Houston. Their goal was to take a potential waste product and turn it into something that would benefit the oil and gas industry — an early attempt at sustainability.

What started as a soap and industrial cleaning company began procuring cresylate, which is a waste from the refineries treating gasoline, to recover spent cresylic acids, which are highly caustic, and refine them so they could be sold into the industrial chemicals market. Read more.

Through an acquisition, Equinor has joined a joint venture carbon capture and storage project in southeast Texas. Image via Getty Images

Equinor buys into massive CCS joint venture project near Houston

M&A Moves

A Norwegian energy company with its United States headquarters in Houston has announced it has acquired a significant chunk of a carbon capture and storage joint venture.

Equinor now owns a 25 percent interest in Bayou Bend CCS LLC, which is reported to be one of the largest domestic carbon capture and storage projects. The project — a JV between Chevron, Talos Energy Inc., and now Equinor, is located along the Gulf Coast in southeast Texas. The terms of the deal were not disclosed.

“Commercial CCS solutions are critical for hard-to-abate industries to meet their climate ambitions while maintaining their activity," Grete Tveit, senior vice president for Low Carbon Solutions in Equinor, says in a news release. "Entering Bayou Bend strengthens our low carbon solutions portfolio and supports our ambition to mature and develop 15-30 million tonnes of equity CO2 transport and storage capacity per year by 2035. Our experience from developing carbon storage projects can help advance decarbonization efforts in one of the largest industrial corridors in the US."

According to Equinor, it purchased its share through the acquisition of Carbonvert's subsidiary, Texas Carbon 1 LLC. Chevron, the operator, holds 50 percent interest, and Talos holds the other 25 percent interest.

“We look forward to working together with our partners to further mature this exciting project. Bayou Bend is Equinor’s first announced low carbon solutions project on the Gulf Coast. Alongside our upstream production and offshore wind developments, we’re strengthening our position as a broad energy company and expanding our footprint in the Gulf region,” Chris Golden, senior vice president and US Country Manager, says in the release. "Bayou Bend is a significant milestone towards growing our low carbon portfolio in the US.”

With about 140,000 gross acres of pore space for permanent CO2 sequestration and over one billion metric tons of gross potential storage resources, according to the release, Bayou Bend is positioned to be one of the largest CCS solutions in the US for industrial emitters.The project spans around 100,000 gross acres across Chambers and Jefferson Counties in southeast Texas, and approximately 40,000 gross acres offshore Beaumont and Port Arthur.

“Delivering lower carbon solutions to harder-to-abate industries is fundamental to Chevron New Energies’ mission, and as a Southeast Texas native, I know how vital these industries are to our local communities and their economies,” Chris Powers, vice president of CCUS at Chevron New Energies, in the release. “We thank Carbonvert for its work on the project, and we look forward to Equinor bringing its expertise and resources to Bayou Bend as it joins the partnership.”

Each of the company's low-carbon innovation arms — Low Carbon Solutions at Equinor, Chevron New Energies division, and Talos Low Carbon Solutions division — are collaborating on the project.

“We continue to make significant progress in developing Bayou Bend, which we believe will be a premier regional carbon storage hub solution for Texas’ largest industrial region. Equinor is a welcomed addition to the partnership. Their experience and track record further enhance the joint venture, which is committed to developing safe, reliable, cost-effective lower carbon solutions while enabling continued economic growth,” said Robin Fielder, executive vice president – Low Carbon Strategy and Chief Sustainability Officer of Talos.

In 2021, Texas General Land Office in Jefferson County, Texas, selected Talos and Carbonvert for the carbon storage lease, located in state waters offshore Beaumont and Port Arthur, Texas. Chevron joined the JV in May 2022. The project expanded earlier this year.

The project is located in southeast Texas, about 70 miles outside of Houston. Image via equinor.com

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Investors close partial acquisition of Phillips 66 subsidiary with growing EV network

M&A activity

Energy Equation Partners, a London-based investment firm focused on clean energy companies, and New York-based Stonepeak have completed the acquisition of a 65 percent interest in JET Tankstellen Deutschland GmbH, a subsidiary of Houston oil and gas giant Phillips 66.

JET is one of the largest and most popular fuel retailers in Germany and Austria with a rapidly growing EV charging network, according to a news release. It also operates approximately 970 service stations, convenience stores and car washes.

“We are delighted to complete this acquisition and to partner with Stonepeak and Phillips 66 to take JET to the next level,” Javed Ahmed, managing partner of Energy Equation Partners, said in a news release. “This investment reflects EEP’s commitment to investing in established players in the energy sector who have the potential to make a meaningful impact on the energy transition, and we are excited to work alongside the entire JET team, including its dedicated service station operators, to realize this vision.”

The deal values JET at approximately $2.8 billion. Phillips 66 will retain a 35 percent non-operated interest in JET and received about $1.6 billion in pre-tax proceeds.

“Under Phillips 66’s ownership, JET has grown into one of the largest fuel retailers in Germany and Austria," Anthony Borreca, senior managing director and co-head of energy at Stonepeak, added in a news release. "We are excited to join forces with them, as well as Javed and the EEP team, who have long-standing experience investing in and operating retail fuel distribution and logistics globally, to support the next phase of JET’s growth.”

6 must-attend Houston energy events in December 2025

Event Guide

Editor's note: The year is coming to a close, but there are still exciting energy events to attend in Houston this month. Mark your calendar now for pitch days, seminars, networking, and Reuters Energy LIVE 2025.

Dec. 4 — Resiliency & Adaptation Sector Pitch Day

Join innovators, industry leaders, investors, and policymakers as they explore breakthrough climate and energy technologies at Greentown Labs' latest installment of its Sector Pitch Day series, focused on resiliency and adaptation. Hear from Adrian Trömel, Chief Innovation Officer at Rice University; Eric Willman, Executive Director of the Rice WaTER Institute; pitches from 10 Greentown startups; and more.

This event is Thursday, Dec. 4, from 1-3:30 p.m. at the Ion. The Ion Holiday Block Party follows. Register here.

Dec. 8 — Pumps & Pipes Annual Event 2025

The annual gathering brings together cross-industry leaders in aerospace, energy and medicine for engaging discussions and networking opportunities. Connor Grennan, Chief AI Architect at the NYU Stern School of Business, will present this year's keynote address, "Practical Strategies to Increase Productivity." Other sessions will feature leaders from Cena Research Institute, NASA Ames Research Center, ExxonMobil, Southwest Airlines, and more.

This event is Monday, Dec. 8, from 8 a.m.-5 p.m., at TMC Helix Park. Register here.

Dec. 9 — Energy in Action Seminar

The Energy Transition Institute hosts a monthly Energy in Action Seminar focused on the digitization of the global energy transition. This month's topic is "Exploring AI’s Impact on the Fuels & Petrochemicals Industry," featuring speaker Leo Chiang, Senior Director of Corporate Technology at The Lubrizol Corporation. The event includes a one-hour talk followed by an hour of networking.

This event is Dec. 9 from 4-6 pm at the University of Houston.

Dec. 9-10 — Energy LIVE 2025

Energy LIVE is Reuters Events' flagship conference and expo that brings the full energy ecosystem together under one roof in Houston to solve the industry's most urgent commercial and operational challenges. The event will feature 3,000-plus senior executives across three strategic stages, a showcase of 75-plus exhibitors, and six strategic content pillars.

This event is Dec. 9-10 at NRG Park. Register here.

Dec. 11-12 — Fundamentals of The Texas ERCOT Electric Power Market

This two-day seminar provides a comprehensive overview of the structure, function, and current status of the Texas ERCOT ISO. Attendees will gain an understanding of the dynamic Texas wholesale and retail competitive markets, and learn how these markets interface with ERCOT ISO energy auctions and ISO operations. This two-day event will also address the rapidly expanding new market opportunities in Texas renewables, distributed generation, demand response, and demand side management, and more.

This event is Dec. 11-12 at the Courtyard Marriott Houston near the Galleria. Register here.

Dec. 9-11 — AST Conference & Trade Show

The 18th Annual National Aboveground Storage Tank (AST) Conference & Trade Show is the premier event for professionals in storage tank and terminal operations. Join industry leaders and experts for a three-day conference providing regulatory updates, technical insights, hands-on learning, and networking opportunities.

This event is Dec. 9-12 at The Woodlands Waterway Marriott. Register here.

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

reduce, recharge, recycle

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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