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Greentown Labs to launch another executive search, CEO to step down after less than a year in the position

Kevin Knobloch is stepping down as Greentown Labs CEO, effective on July 31. Photos courtesy

Greentown Labs, which is co-located in the Boston and Houston areas, has announced its current CEO is stepping down after less than a year in the position.

The nonprofit's CEO and President Kevin Knobloch announced that he will be stepping down at the end of July 2024. Knobloch assumed his role last September, previously serving as chief of staff of the United States Department of Energy in President Barack Obama’s second term.

“It has been an honor to lead this incredible team and organization, and a true privilege to get to know many of our brilliant startup founders," Knobloch says in the news release. “Greentown is a proven leader in supporting early-stage climatetech companies and I can’t wait to see all that it will accomplish in the coming years.”

The news of Knobloch's departure comes just over a month after the organization announced that it was eliminating 30 percent of its staff, which affected 12 roles in Boston and six in Houston.

According the Greentown, its board of directors is expected to launch a national search for its next CEO.

“On behalf of the entire Board of Directors, I want to thank Kevin for his efforts to strengthen the foundation of Greentown Labs and for charting the next chapter for the organization through a strategic refresh process,” says Dawn James, Greentown Labs Board Chair, in the release. “His thoughtful leadership will leave a lasting impact on the team and community for years to come.”

Knobloch reportedly shifted Greentown's sponsorship relationships with oil companies, sparking "friction within the organization," according to the Houston Chronicle, which also reported that Knobloch said he intends to return to his clean energy consulting firm.

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A View From HETI

A team at the University of Houston is changing the game for sodium-ion batteries. Photo via Getty Images

A research lab at the University of Houston has developed a new type of material for sodium-ion batteries that could make them more efficient and boost their energy performance.

Led by Pieremanuele Canepa, Robert Welch assistant professor of electrical and computer engineering at UH, the Canepa Research Laboratory is working on a new material called sodium vanadium phosphate, which improves sodium-ion battery performance by increasing the energy density. Energy density is the amount of energy stored per kilogram, and the new material can do so by more than 15 percent. With a higher energy density of 458 watt-hours per kilogram — compared to the 396 watt-hours per kilogram in older sodium-ion batteries — this material brings sodium technology closer to competing with lithium-ion batteries, according to the researchers.

The Canepa Lab used theoretical expertise and computational methods to discover new materials and molecules to help advance clean energy technologies. The team at UH worked with the research groups headed by French researchers Christian Masquelier and Laurence Croguennec from the Laboratoire de Reáctivité et de Chimie des Solides, which is a CNRS laboratory part of the Université de Picardie Jules Verne, in Amiens France, and the Institut de Chimie de la Matière Condensée de Bordeaux, Université de Bordeaux, Bordeaux, France for the experimental work on the project.

The researchers then created a battery prototype using the new materia sodium vanadium phosphate, which demonstrated energy storage improvements. The material is part of a group called “Na superionic conductors” or NaSICONs, which is made to let sodium ions move in and out of the battery during charging and discharging.

“The continuous voltage change is a key feature,” Canepa says in a news release. “It means the battery can perform more efficiently without compromising the electrode stability. That’s a game-changer for sodium-ion technology.”

The synthesis method used to create sodium vanadium phosphate may be applied to other materials with similar chemistries, which could create new opportunities for advanced energy storage. A paper of this work was published in the journal Nature Materials.

"Our goal is to find clean, sustainable solutions for energy storage," Canepa adds. "This material shows that sodium-ion batteries can meet the high-energy demands of modern technology while being cost-effective and environmentally friendly."

Pieremanuele Canepa, Robert Welch assistant professor of electrical and computer engineering at UH, is leading a research project that can change the effectiveness of sodium-ion batteries. Photo courtesy of UH

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