eyes on LI

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

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

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.

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A View From HETI

Houston researchers have uncovered why solid-state batteries break down and what could be done to slow the process. Photo via Getty Images.

A team of researchers from the University of Houston, Rice University and Brown University has uncovered new findings that could extend battery life and potentially change the electric vehicle landscape.

The team, led by Yan Yao, the Hugh Roy and Lillie Cranz Cullen Distinguished Professor of Electrical and Computer Engineering at UH, recently published its findings in the journal Nature Communications.

The work deployed a powerful, high-resolution imaging technique known as operando scanning electron microscopy to better understand why solid-state batteries break down and what could be done to slow the process.

“This research solves a long-standing mystery about why solid-state batteries sometimes fail,” Yao, corresponding author of the study, said in a news release. “This discovery allows solid-state batteries to operate under lower pressure, which can reduce the need for bulky external casing and improve overall safety.”

A solid-state battery replaces liquid electrolytes found in conventional lithium-ion cells with a solid separator, according to Car and Driver. They also boast faster recharging capabilities, better safety and higher energy density.

However, when it comes to EVs, solid-state batteries are not ideal since they require high external stack pressure to stay intact while operating.

Yao’s team learned that tiny empty spaces, or voids, form within the solid-state batteries and merge into a large gap, which causes them to fail. The team found that adding small amounts of alloying elements, like magnesium, can help close the voids and help the battery continue to function. The team captured it in real-time with high-resolution videos that showed what happens inside a battery while it’s working under a scanning electron microscope.

“By carefully adjusting the battery’s chemistry, we can significantly lower the pressure needed to keep it stable,” Lihong Zhao, the first author of this work, a former postdoctoral researcher in Yao’s lab and now an assistant professor of electrical and computer engineering at UH, said in the release. “This breakthrough brings solid-state batteries much closer to being ready for real-world EV applications.”

The team says it plans to build on the alloy concept and explore other metals that could improve battery performance in the future.

“It’s about making future energy storage more reliable for everyone,” Zhao added.

The research was supported by the U.S. Department of Energy’s Battery 500 Consortium under the Vehicle Technologies Program. Other contributors were Min Feng from Brown; Chaoshan Wu, Liqun Guo, Zhaoyang Chen, Samprash Risal and Zheng Fan from UH; and Qing Ai and Jun Lou from Rice.

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