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Energy transition events roundup, 3 Houston cos. make it to global competition finals, and more things to know

Houston energy transition folks — here's what to know to start your week. Photo via Getty Images

Editor's note: Dive headfirst into the new week with three quick things to catch up on in Houston's energy transition: a really big deal from last week, three startups make it to the finals of an Elon Musk-backed competition, and five events not to miss.

Companies to watch: 

Twenty promising climatetech companies were selected to advance to the final stage of a global competition backed by Elon Musk's foundation — and three of the finalists hail from Houston.

Vaulted Deep, Mati Carbon, and Climate Robotics secured finalists spots in XPRIZE's four-year global competition is designed to combat climate change with innovative solutions. XPRIZE Carbon Removal will offer $100 million to innovators who are creating solutions that removes carbon dioxide directly from the atmosphere or the oceans, and then sequester it sustainably.

The finalists — categorized into four sections: air, rocks, oceans, and land — were selected based upon their performance in three key areas: operations, sustainability, and cost. Click here to read more.

Events not to miss

Put these Houston-area energy-related events on your calendar.

  • 2nd Annual Geothermal Transition Summit for North America will take place May 21 and 22 at The Hilton Greenway Plaza. Engage in discussions on early-project development, industry policies, the synergy with the oil and gas industry, methods to enhance commerciality, and explore case studies from ground-breaking projects. Register now.
  • The Energy Drone & Robotics Summit is coming to Houston June 10 to 12. Join for the ultimate event in the world for UAVs, Robotics & Data/AI, 3D Reality Capture, Geospatial and Digital Twins focused on the business and technology in energy & industrial operations, inspections, maintenance, surveying & mapping. Register now.
  • Argus Clean Ammonia North America Conference will take place on June 12 to 14 at the Hyatt Regency Houston. Over the three days of the conference, explore the big questions many producers are facing around where demand is coming from, expect to hear perspectives from key domestic consumers as well as international demand centres for clean ammonia. Register now.
  • Join the over 150 senior energy and utilities leaders from June 17 to 18 in Houston for AI in Energy to unlock the potential of AI within your enterprise and delve into key areas for its development.Register now.
  • Energy Underground (June) is a group of professionals in the Greater Houston area that are accelerating the Energy Transition that connect monthly at The Cannon - West Houston. Register now.

Big deal: Equinor bets on lithium

Equinor, which has its U.S. headquarters in Houston, has entered into a deal to take a 45-percent share in two lithium project companies in Southwest Arkansas and East Texas. The agreement is 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.

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. Click here to read more.

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A View From HETI

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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