The Rice team's process is up to 10 times more effective than existing lithium-ion battery recycling. Photo by Gustavo Raskosky/Rice University

With the rise of electric vehicles, every ounce of lithium in lithium-ion batteries is precious. A team of scientists from Rice University has figured out a way to retrieve as much as 50 percent of the material in used battery cathodes in as little as 30 seconds.

Researchers at Rice University’s Nanomaterials Laboratory led by Department of Materials Science and NanoEngineering Chair Pulickel Ajayan released the findings a new study published in Advanced Functional Materials. Their work shows that the process overcomes a “bottleneck” in lithium-ion battery recycling technology. The researchers described a “rapid, efficient and environmentally friendly method for selective lithium recovery using microwave radiation and a readily biodegradable solvent,” according to a news release.

Past recycling methods have involved harsh acids, and alternative eco-friendly solvents like deep eutectic solvents (DESs) at times have not been as efficient and economically viable. Current recycling methods recover less than 5 percent of lithium, which is due to contamination and loss during the process.

In order to leach other metals like cobalt or nickel, both the choline chloride and the ethylene glycol have to be involved in the process, according to the researchers at Rice. The researchers submerged the battery waste material in the solvent and blasted it with microwave radiation since they knew that of the two substances only choline chloride is good at absorbing microwaves.

Microwave-assisted heating can achieve similar efficiencies like traditional oil bath heating almost 100 times faster. Using the microwave-based process, Rice found that it took 15 minutes to leach 87 percent of the lithium, which differs from the 12 hours needed to obtain the same recovery rate via oil bath heating.

“This method not only enhances the recovery rate but also minimizes environmental impact, which makes it a promising step toward deploying DES-based recycling systems at scale for selective metal recovery,” Ajayan says in the release.

Due to rise in EV production, the lithium-ion battery global market is expected to grow by over 23 percent in the next eight years, and was previously valued at over $65 billion in 2023.

“We’ve seen a colossal growth in LIB use in recent years, which inevitably raises concerns as to the availability of critical metals like lithium, cobalt and nickel that are used in the cathodes,” the study's co-author, Sohini Bhattacharyya, adds. “It’s therefore really important to recycle spent LIBs to recover these metals.”

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This article originally ran on EnergyCapital.

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Houston consulting firm opens innovation hub for business AI in collaboration with SAP

new space

Houston’s Sierra Digital has launched Sierra AppHaus Houston, an innovation hub for business AI in collaboration with the the AppHaus program from software giant SAP.

Sierra Digital is the second U.S. partner to join the SAP AppHaus Network, a group of spaces focused on leveraging SAP products and technology. The operation is connected to Sierra Digital’s offices in the Sharpstown area. It features three meeting rooms and a large conference room, and can host workshops for more than 100 participants.

“Sierra Digital has been recognized as a perfect addition to the SAP AppHaus Network,” Carlos Estala Velasco, co-lead SAP AppHaus Partner Network, said in a news release. “With a committed AppHaus team equipped to apply our award-winning human-centered innovation approach, they are able to inspire and support customers throughout their journey to realize innovation. We eagerly anticipate co-innovating with the local team!”

Sierra Digital, founded in 2002, focuses on modernizing legacy SAP systems. It has developed a library of over 30 pre-built business technology applications (BTA) and is also one of the first SAP partners to develop and implement use cases for business AI. The company is also a leading member of the SAP BTP Advisory Council.

Sierra’s portfolio of pre-built BTP applications helps streamline operations by automating tasks like business partner onboarding and revenue processing with AI-driven insights. The company works in the oil and gas, chemical, manufacturing, retail and public sectors.

The first SAP AppHaus location was established in 2013, and there are now 25 globally. Three of the locations are owned by SAP, and 22 are managed by partners, including Sierra Digital. According to a LinkedIn post, Sierra Digital plans to use the Houston space for design-thinking workshops, tech discussions and even hackathons.

"We are proud to be part of the SAP AppHaus Network and to contribute our design and innovation expertise," Senthil Kumar, CEO and chairman of Sierra Digital, said in a news release. "This collaboration with SAP allows us to co-create impactful solutions that accelerate digital transformation for our clients and strengthen our regional presence."

New AI-focused innovation hub, Rice Nexus, debuts at The Ion Houston

Innovation Station

Rice University unveiled its new AI-focused "innovation factory," Rice Nexus, on Friday, February 14.

The 10,000-square-foot space, occupying two floors at The Ion, aims to support and provide resources for ventures that are looking to scale and have "artificial intelligence (AI) as a central pillar of its innovation strategy," according to a statement from Rice.

The space will be home to a dedicated AI venture accelerator and is already serving as a home base for several startups with ties to Rice. The companies include:

  • Solidec, a climate-tech company co-founded by Rice professor Haotian Wang, research scientist Ryan DuChanois and alumnus Yang Xia
  • Coflux Purification, co-founded by Rice students Alec Ajnsztajn, Jeremy Daum and Dana Vazquez with collaboration from professors Rafael Verduzco and Pulickel Ajayan
  • BeOne Sports, a sports performance technology company founded by Rice alumni
  • Voythos, which uses AI to predict the future health of patients with cardiovascular disease

Sanjoy Paul will lead Rice Nexus as executive director. Paul previously worked at Accenture LLC as a managing director of technology and is a lecturer in Rice's Department of Computer Science.

“We created the Rice Nexus in the Ion for Rice faculty, students and alumni to transform their breakthrough ideas into venture-ready startups,” Paul Cherukuri, Rice’s chief innovation officer and vice president for innovation, said in the release.

“With Sanjoy Paul at the helm, we are not only integrating AI into the core of our innovation efforts but also ensuring that Rice founders have the leadership, expertise and support they need to rapidly build and scale transformative companies.”

The space is part of Rice's latest 10-year strategic plan known as Momentous, which was announced in October. Rice University President Reginald DesRoches spoke with the Houston Innovators Podcast on the university's growth last fall. Click here to listen, and explore photos of the new space below.

Photo courtesy Rice University

Texas county will hold election to make Elon Musk's Starbase its own city

Tesla Town

A Texas county recently approved holding an election sought by SpaceX that would let residents living around billionaire Elon Musk's company decide whether to formally create a new city called Starbase.

The election was set for May 3 and votes can only be cast by residents living near the launch site that is currently part of an unincorporated area of Cameron County, located along the U.S.-Mexico border.

In December, more than 70 area residents signed a petition requesting an election to make Starbase its own municipality. Most of the residents are company employees and the community includes more than 100 children, according to copies of the petition obtained by The Associated Press.

Cameron County Judge Eddie Treviño said the county reviewed the petition and found it met the state's requirements for the incorporation process to move forward.

“If the election passes, this will be the newest town in Cameron County since Los Indios in 1995,” Treviño said in a statement. “We look forward to seeing the outcome of this election.”

SpaceX responded to a request for comment by referring to the company's earlier statement in December.

Kathryn Lueders, Starbase's general manager, previously said that the incorporation would streamline certain processes to build amenities in the area. Some local environmental advocates have expressed worry about what the effects would mean for development.

SpaceX's launch site broke ground in Texas in 2014. Only 10 of the roughly 250 lots of land within the proposed new city limits do not belong to the company.

More than 3,400 full-time SpaceX employees and contractors work at the Starbase site, according to a local impact study issued by the county last year.

Musk has long been planting business roots in Texas and has spread them far and wide across the Lone Star State. The billionaire moved to Texas in 2020 and relocated to or expanded a number of his companies in the state, citing the state’s business-friendly climate.

Tesla’s massive 10-million-square-foot Gigafactory, where the company makes its Cybertrucks, opened near Austin in 2022 and will also serve as the company headquarters.