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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This article originally appeared on EnergyCaptialHTX.com.

The electric buses are expected to debut in about a year. Photo via ridemetro.org

Houston METRO partnership receives $1.5M federal grant to bring electric buses to the Third Ward

hop on

Get ready to ride a new fleet of zero emission shuttles from Houston METRO. Global consulting firm AECOM and METRO partnered on new electric bus initiative and have recently been granted $1.5 million from the Federal Transit Administration to bring the service to Texas Southern University, University of Houston, and Houston's Third Ward neighborhood.

The grant was awarded through the FTA's Accelerating Innovative Mobility, or AIM, initiative and was one of only 25 initiatives across the U.S. to receive FTA funding. The new buses are expected to be fully operational in spring of next year.

"The shuttle will connect to METRO buses and light rail and be studied for potential use in urban, suburban, and rural environments," says Kim Williams, METRO's chief innovation officer, in a news release. "Our industry continues to evolve with new technology that prioritizes clean air quality."

AECOM will manage, plan, and provide engineering support services for the project for METRO, which is a founding member of AECOM's Automated Bus Consortium.

"We're thrilled to work with our longtime partner, METRO, on this exciting AIM initiative and to further progress mobility and innovation in the transit industry while helping our clients achieve their sustainability goals," says Andrew Bui, AECOM's vice president of global transportation electrification, in the release.

"This project will strengthen our ongoing efforts through our Automated Bus Consortium and contribute to Houston's already expansive work in deploying emerging technologies," Bui adds.

The vehicle will be provided by the project's partner Phoenix Motorcars, which makes zero emission, all-electric vehicles via software from EasyMile, a leader in cutting-edge autonomous technology.

Through increasing awareness, affordability, and accessibility, the city of Houston hopes to grow the number of electric vehicles on Houston roads by 2030. Courtesy of EVolve Houston

Mayor announces major effort to reduce emissions on Houston's roadways

Easy EVs

The city of Houston has taken a major step toward reducing carbon emissions caused by its estimated 1.3 million vehicles that drive the city's streets daily.

Mayor Sylvester Turner announced a new partnership between the government, local businesses, and academic leaders that has created EVolve Houston. The coalition is aimed at boosting electric vehicle sales to 30 percent of new car sales in Houston by 2030.

"This new partnership will help solidify Houston's success as a leader in transportation technology and it will help improve air quality for the citizens of Houston and beyond, by reducing reliance on vehicles powered by carbon-based fuels," Mayor Turner says in a release. "Houston will now have a dedicated resource working to increase the adoption of electric vehicles, wherever it makes sense to do so. Nearly half of the greenhouse gas emissions in Houston come from transportation. Shifting to zero emission forms of transportation is a key strategy to help us meet our ambitious climate goals and improve our regional air quality."

EVolve Houston, which will contribute to the city's Climate Action Plan that was announced in July, will focus on increasing awareness, affordability, and availability of electric vehicles. The coalition's founding partners include the city, CenterPoint Energy, the University of Houston, NRG Energy, Shell, and LDR.

"Houston has bold goals to improve air quality and reduce greenhouse gas emissions. To do that, we must make a major impact on one of the largest sources of emissions, which is transportation" says Dr. Ramanan Krishnamoorti, the chief energy officer at University of Houston.

The partners will focus on launching pilot projects as well as hosting demonstrations and awareness activities to promote EV adoption, according to the release.

"At CenterPoint Energy, we are committed to making a positive difference in the communities we touch, and environmental stewardship is an integral component of our overall corporate responsibility approach," says Scott Prochazka, president and CEO of CenterPoint Energy, in the release. "I am proud to partner with Mayor Turner and other founding members of EVolve Houston to help accelerate clean transportation for Houston."

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Houston researchers report promising first in-human trial for implantable cancer therapy

cancer breakthrough

When it comes to cancer remedies, the treatment can be as challenging for the body as its cause. But what if immunotherapy could be localized? That’s precisely what a Houston team may soon make a reality.

Rice University researchers, in partnership with MD Anderson Cancer Center, recently published their findings from the first in-human trial of an implantable cancer-fighting treatment in the journal Clinical Cancer Research. The paper details testing of AVB-001, encapsulated cells engineered to release interleukin-2 (IL-2)—a naturally occurring signaling protein that boosts immunity—in the peritoneal cavities of 14 patients. The goal is to avoid the toxicity usually experienced with less targeted treatments, as well as find a solution to IL-2s’ abbreviated half-lives.

“Traditional IL-2 therapy has shown potent antitumor activity, but its clinical use has been limited by severe side effects and delivery challenges,” Omid Veiseh, director of the Rice Biotech Launch Pad, professor of bioengineering at Rice and a senior author on the study, said in a press release. “This platform allows us to localize and sustain cytokine exposure directly where tumors reside while minimizing systemic toxicity.”

Serous ovarian carcinoma is especially well-suited to the use of AVB-001 because it tends to spread throughout the abdomen. After a minimally invasive laparoscopic procedure, patients implanted with the cells were noted to tolerate the treatment well. Half of the enrolled patients’ cancer was stabilized, with several among them reporting extended signs of benefit. No maximum tolerated dose was reached and there were no life-threatening events tied to the study.

If that sounds like less-than-earth-shaking results, this is only the beginning. The capsules were implanted for about one week because IL-2 activity drops off after that. The researchers now know that further testing should include either higher levels, repeated doses, or a combination thereof, in order to create stronger advances.

The team has already made early headway on this next step. Preclinical studies in nonhuman primates were not only tolerated well, but without added toxicity, the apes had consistent pharmacological effects.

“This is a foundational step,” Veiseh explained. “We now have evidence that the platform is safe, biologically active and potentially scalable. The next phase is optimizing dosing and exploring combination therapies to unlock its full clinical potential.”

The combination would also include a checkpoint inhibitor, which might improve AVB-001’s tumor-fighting power. “What is exciting is that we are not just delivering a drug, we are programming a microenvironment,” added Dr. Amir Jazaeri, professor of gynecologic oncology at MD Anderson, member of the Rice Biotech Launch Pad’s clinical advisory board and a senior author on the study. “This opens the door to combination strategies that could amplify immune responses in ways that have not been feasible before.”

Houston startup raises $6M to scale home-based healthcare platform

fresh funding

As healthcare systems race to expand care beyond hospitals and into the home, investors are placing bigger bets on the infrastructure needed to make that shift possible.

This month, Rosarium Health announced it has raised $6 million in seed funding led by Kalos Ventures, with participation from ResilienceVC, Rock Health Capital, Symphonic Capital, Black Tech Nations Ventures and others.

The investment will help the Houston-based startup continue to build its platform, which features a national network of 800-plus clinicians and 3,000-plus contractors to coordinate home accessibility upgrades and modifications for seniors and people living with disabilities.

For founder and CEO Cameron Carter, the company’s mission grew out of firsthand caregiving experiences.

“From my own personal caregiving experiences, I realized that the benefits exist on paper, but not in reality,” Carter said in a news release. “Families are being left to figure out the paperwork and installations all on their own, which shouldn’t be how this works.”

While Medicare Advantage and Medicaid plans have expanded coverage for home-based services and accessibility modifications, the logistics behind delivering those services often remain fragmented.

Rosarium’s platform coordinates the entire process, from clinical assessments and referrals to contractor management, documentation, reimbursement and installation.

“A clinician can document that a home isn’t safe and a plan can approve a benefit, but there’s no one that’s responsible for making sure the work actually gets done,” Carter says. “We built the missing piece.”

The company was founded in 2021 as Rose Health and was a 2023 participant in the Texas Medical Center’s Accelerator for HealthTech program. It has scaled quickly, building a network of more than 800 clinicians and 3,000 contractors across 34 states.

Rosarium is currently in-network for 1.2 million Medicare and Medicaid lives, with projected coverage expected to reach nearly 4 million by the end of the year, according to the release.

“We’re excited to back Cameron because he and the team at Rosarium are building the infrastructure healthcare needs right now to make the home a safe and comfortable place of care,” Kate Ballinger, investor at Kalos Ventures, added in the release.

As part of the recent investment, Ballinger will join Rosarium’s board of directors.

With eyes on the future, Rosarium plans to grow its partnerships with Medicaid and Medicare Advantage plans, including CalViva and Community Health Plan of Imperial Valley, strengthening its presence in California while expanding access to underserved communities.

Additionally, Carter predicts that home-based healthcare will be part of a broader transformation happening across the industry.

“There’s a growing recognition that health outcomes are shaped by what happens in the home,” he said in the release. “The future of healthcare isn’t just treating people after something goes wrong. It’s creating environments that help prevent those problems in the first place.”