HETI has supported efforts to bring CCUS to a broader commercial scale since the initiative’s inception. Image via Getty Images

This month, the U.S. Environmental Protection Agency (EPA) announced its proposed approval of Texas request for permitting authority under the Safe Drinking Water Act (SDWA) for Class VI underground injection wells for carbon capture, utilization and storage (CCUS) in the state. The State of Texas already has permitting authority for Class I-V injection wells. Granting authority for Class VI wells recognizes that Texas is well positioned to protect its underground sources of drinking water while also advancing economic opportunity and energy security.

“In the Safe Drinking Water Act, Congress laid out a clear vision for delegating decision-making from EPA to states that have local expertise and understand their water resources, geology, communities, and opportunities for economic growth,” said EPA Administrator Lee Zeldin in a news release. “EPA is taking a key step to support cooperative federalism by proposing to approve Texas to permit Class VI wells in the state.”

The Greater Houston Partnership’s Houston Energy Transition Initiative (HETI) has supported efforts to bring CCUS to a broader commercial scale since the initiative’s inception. Earlier this year, HETI commissioned a “study of studies” by Texas A&M University’s Energy Institute and Mary K. O’Connor Process Safety Center on the operational history and academic literature of CCUS safety in the United States. The report revealed that with state and federal regulations as well as technical and engineering technologies available today, CCUS is safe and presents a very low risk of impacts to human life. This is useful research for stakeholders interested in learning more about CCUS.

“The U.S. EPA’s proposal to approve Texas’ application for Class VI well permitting authority is yet another example of Texas’ continued leadership in meeting the dual challenge of producing more energy with less emissions,” said Jane Stricker, Senior Vice President of Energy at the Greater Houston Partnership and Executive Director of the Houston Energy Transition Initiative. “We applaud the U.S. EPA and Texas Railroad Commission for their collaborative efforts to ensure the supply of safe, affordable and reliable energy, and we call on all stakeholders to voice their support for the application during the public comment period.”

The U.S. EPA has announced a public comment period that will include a virtual public hearing on July 24, 2025 from 5-8 pm and conclude on July 31, 2025.

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This article originally ran on the Greater Houston Partnership's Houston Energy Transition Initiative blog. HETI exists to support Houston's future as an energy leader. For more information about the Houston Energy Transition Initiative, EnergyCapitalHTX's presenting sponsor, visit htxenergytransition.org.

Leaders from across the energy value chain gathered in Houston for a roundtable to discuss tackling methane. Photo via Canva

Tackling methane in the energy transition: Takeaways from Global Methane Hub and HETI

The view from heti

Leaders from across the energy value chain gathered in Houston for a roundtable hosted by the Global Methane Hub (GMH) and the Houston Energy Transition Initiative (HETI). The session underscored the continued progress to reduce methane emissions as the energy industry addresses the dual challenge of producing more energy that the world demands while simultaneously reducing emissions.

The Industry’s Shared Commitment and Challenge

There’s broad recognition across the industry that methane emissions must be tackled with urgency, especially as natural gas demand is projected to grow 3050% by 2050. This growth makes reducing methane leakage more than a sustainability issue—it’s also a matter of global market access and investor confidence.

Solving this issue, however, requires overcoming technical challenges that span infrastructure, data acquisition, measurement precision, and regulatory alignment.

Getting the Data Right: Top-Down vs. Bottom-Up

Accurate methane leak monitoring and quantification is the cornerstone of any effective mitigation strategy. A key point of discussion was the differentiation between top-down and bottom-up measurement approaches.

Top-down methods such as satellite and aerial monitoring offer broad-area coverage and can identify large emission plumes. Technologies such as satellite-based remote sensing (e.g., using high-resolution imagery) or airborne methane surveys (using aircraft equipped with tunable diode laser absorption spectroscopy) are commonly used for wide-area detection. While these methods are efficient for identifying large-scale emission hotspots, their accuracy is lower when it comes to quantifying emissions at the source, detecting smaller, diffuse leaks, and providing continuous monitoring.

In contrast, bottom-up methods focus on direct, on-site detection at the equipment level, providing more granular and precise measurements. Technologies used here include optical gas imaging (OGI) cameras, flame ionization detectors (FID), and infrared sensors, which can directly detect methane at the point of release. These methods are more accurate but can be resource and infrastructure intensive, requiring frequent manual inspections or continuous monitoring installations, which can be costly and technically challenging in certain environments.

The challenge lies in combining both methods: top-down for large-scale monitoring and bottom-up for detailed, accurate measurements. No single technology is perfect or all-inclusive. An integrated approach that uses both datasets will help to create a more comprehensive picture of emissions and improve mitigation efforts.

From Detection to Action: Bridging the Gap

Data collection is just the first step—effective action follows. Operators are increasingly focused on real-time detection and mitigation. However, operational realities present obstacles. For example, real-time leak detection and repair (LDAR) systems—particularly for continuous monitoring—face challenges due to infrastructure limitations. Remote locations like the Permian Basin may lack the stable power sources needed to run continuous monitoring equipment to individual assets.

Policy, Incentives, and Regulatory Alignment

Another critical aspect of the conversation was the need for policy incentives that both promote best practices and accommodate operational constraints. Methane fees, introduced to penalize emissions, have faced widespread resistance due to their design flaws that in many cases actually disincentivize methane emissions reductions. Industry stakeholders are advocating for better alignment between policy frameworks and operational capabilities.

In the United States, the Subpart W rule, for example, mandates methane reporting for certain facilities, but its implementation has raised concerns about the accuracy of some of the new reporting requirements. Many in the industry continue to work with the EPA to update these regulations to ensure implementation meets desired legislative expectations.

The EU’s demand for quantified methane emissions for imported natural gas is another driving force, prompting a shift toward more detailed emissions accounting and better data transparency. Technologies that provide continuous, real-time monitoring and automated reporting will be crucial in meeting these international standards.

Looking Ahead: Innovation and Collaboration

The roundtable highlighted the critical importance of advancing methane detection and mitigation technologies and integrating them into broader emissions reduction strategies. The United States’ 45V tax policy—focused on incentivizing production of low-carbon intensity hydrogen often via reforming of natural gas—illustrates the growing momentum towards science-based accounting and transparent data management. To qualify for 45V incentives, operators can differentiate their lower emissions intensity natural gas by providing foreground data to the EPA that is precise and auditable, essential for the industry to meet both environmental and regulatory expectations. Ultimately, the success of methane reduction strategies depends on collaboration between the energy industry, technology providers, and regulators.

The roundtable underscored that while significant progress has been made in addressing methane emissions, technical, regulatory, and operational challenges remain. Collaboration across industry, government, and technology providers is essential to overcoming these barriers. With better data, regulatory alignment, and investments in new technologies, the energy sector can continue to reduce methane emissions while supporting global energy demands.

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HETI thanks Chris Duffy, Baytown Blue Hydrogen Venture Executive, ExxonMobil; Cody Johnson, CEO, SCS Technologies; and Nishadi Davis, Head of Carbon Advisory Americas, wood plc, for their participation in this event.

This article originally appeared on the Greater Houston Partnership's Houston Energy Transition Initiative blog. HETI exists to support Houston's future as an energy leader. For more information about the Houston Energy Transition Initiative, EnergyCapitalHTX's presenting sponsor, visit htxenergytransition.org.

HETI has welcomed three new members. Photo via Getty Images

Houston Energy Transition Initiative announces new members for 2025

The view from heti

The Greater Houston Partnership’s Houston Energy Transition Initiative (HETI) has welcomed three new member companies who aim to accelerate global solutions for an energy-abundant, low-carbon future.

HETI members are champions in their fields, each with their distinctive advantage to help region lead the energy transition with innovative solutions. New members include:

Kanin Energy

A purpose-built, turnkey developer that focuses on transforming industrial waste heat into emission-free power, providing bundled solutions to industrial facilities that include the design, construction, operation, and financing of waste heat to power and other decarbonization projects.

TerraPower

A developer of advanced technologies that deliver safe, affordable, and abundant carbon-free energy. Their work supports industrial decarbonization and economic growth by harnessing heat and electricity in innovative ways. Additionally, they are advancing processes to extract radioisotopes for use in lifesaving cancer treatments.

TotalEnergies

A global integrated energy company that produces and markets energies: oil and biofuels, natural gas, biogas and low-carbon hydrogen, renewables and electricity. Our more than 100,000 employees are committed to provide as many people as possible with energy that is more reliable, more affordable and more sustainable. Active in about 120 countries, TotalEnergies places sustainability at the heart of its strategy, its projects and its operations.

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This article originally appeared on the Greater Houston Partnership's Houston Energy Transition Initiative blog. HETI exists to support Houston's future as an energy leader. For more information about the Houston Energy Transition Initiative, EnergyCapitalHTX's presenting sponsor, visit htxenergytransition.org.

Houston Energy and Climate Startup Week is coming back for a second year. Photo via GHP

Houston Energy and Climate Startup Week announces 2025 dates, key events

comeback tour

Six local organizations focused on the energy transition have teamed up to bring back Houston Energy and Climate Startup Week.

The second annual event will take place Sept. 15-19, according to an announcement. The Ion District will host many of the week's events.

Houston Energy and Climate Startup Week was founded in 2024 by Rice Alliance for Technology and Entrepreneurship, Halliburton Labs, Greentown Labs, Houston Energy Transition Initiative (HETI), Digital Wildcatters and Activate.

“Houston Energy and Climate Startup Week was created to answer a fundamental question: Can we achieve more by working together than we can alone?” Jane Stricker, senior vice president at the Greater Houston Partnership and executive director of HETI, said in the release.

So far, events for the 2025 Houston Energy and Climate Startup Week include an introduction to climatetech accelerator Activate's latest cohort, the Rice Alliance Energy Tech Venture Forum, a showcase from Greentown Labs' ACCEL cohort, and Halliburton Labs Pitch Day.

Houston organizations New Climate Ventures and Digital Wildcatters, along with Global Corporate Venturing, are slated to offer programming again in 2025. And new partners, Avatar Innovations and Decarbonization Partners, are slated to introduce events. Find a full schedule here.

Other organizations can begin entering calendar submissions starting in May, according to the release.

Last year, Houston Energy and Climate Startup Week welcomed more than 2,000 attendees, investors and industry leaders to more than 30 events. It featured more than 100 speakers and showcased more than 125 startups.

"In 2024, we set out to build something with lasting impact—rooted in the ingenuity of Houston’s technologists and founders. Thanks to a collaborative effort across industry, academia, and startups, we’ve only just begun to showcase Houston’s strengths and invite others to be part of this movement," Stricker added in the release. "We can’t wait to see the city rise to the occasion again in 2025.”

The teams at this year's Energy Venture Day and Pitch Competition have collectively raised $435 million in funding. Photo courtesy of CERAWeek

CERAWeek announces winners of annual clean tech pitch competition

top teams

Teams from around the world and right here in Houston took home prizes at the fourth annual Energy Venture Day and Pitch Competition at CERAWeek on March 12.

The fast-paced event, put on by Rice Alliance, Houston Energy Transition Initiative and TEX-E, invited 36 industry startups and five Texas-based student teams focused on driving efficiency and advancements toward the energy transition to present at 3.5-minute pitch before investors and industry partners during CERAWeek's Agora program. The competition is a qualifying event for the Startup World Cup, powered by Pegasus Venture, where teams compete for a $1 million investment prize.

The teams at this year's Energy Venture Day have collectively raised $435 million in funding.

Rice University student teams took home two of the three top prizes in the competition.

HEXASpec won the student track, known at TEX-E, taking home $25,000. The team's pitch focused on enhancing semiconductor chips’ thermal conductivity to boost computing power. Pattern Materials, another Rice-led team, claimed third place and won $10,000 for its proprietary LIG and LIGF technology that produces graphene patterns.

A team from the University of Texas McCombs School of Business, Nanoborne, took home second place and $15,000 for its engineering company focused on research and development in applied nanotechnology.

The companies that pitched in the three industry tracts competed for non-monetary awards. Here's who won:

Track A: Hydrogen, Fuel Cells, Buildings, Water, & Other Energy Solutions

Track B: Advanced Manufacturing, Materials, Fossil Energy, & Carbon Management

Track C: Industrial Efficiency, Decarbonization, Electricity, & the Grid

Arculus Solutions, which retrofits natural gas pipelines for safe hydrogen transportation, was named the overall winner and will move on to the Startup World Cup competition. California-based Membravo was also given a "golden ticket" to participate in the next NOV Supernova Accelerator cohort.

Teams at this year's Energy Venture Day represented five countries and 15 states. Click here to see the full list of companies and investor groups that participated.

Here are all the events on CERAWeek's Agora track you can't miss if learning more about Houston energy innovation is your goal. Staff photo

Here are 20+ CERAWeek 2025 events featuring Houston energy leaders

where to be

CERAWeek 2025 will host more than 1,400 speakers at its annual energy-focused conference taking place March 10-14, with many hailing from Houston.

Under this year's theme, "Moving Ahead: Energy strategies for a complex world,” panels will tackle topics ranging from policy and regulation, geopolitics, power, grid, and electrification, AI and digital, managing emissions, and more.

Most of the innovation-themed events are organized under the Agora track and will feature many Houston-area startups, universities, companies, and scientists. Here are all the events on the Agora track you can't miss if you want to learn more about Houston energy innovation.

Transition in Action: Energy giants shaping a sustainable future

ExxonMobil's Senior Director, Climate Strategy & Technology Vijay Swarup will examine how major energy companies are driving energy transition goals along with panelists from S&P Global, Aramco Ventures and Gentari Sdn Bhd.

This panel is from 12:30-1 p.m. on Monday, March 10. More info here.

Syzygy Plasmonics | Deploying the World’s Most Economic Biogas to SAF Technology

Hear from Syzygy Plasmonics CEO Trevor Best about how the cleantech company's catalyst and reactor work and how the tools can dramatically reduce the cost of producing SAF from biogas from landfills, wastewater, and dairy farms.

This panel is from 2-2:30 p.m. on Monday, March 10. More info here.

Cemvita | The Future of Bioengineered Feedstocks: A Foresight Perspective

Cemvita CEO Moji Karimi will lead this panel.

This panel is from 4:30-5:15 p.m. on Monday, March 10. More info here.

Innovating with Purpose: Strengthening industrial-academic partnerships

David Dankworth, ExxonMobil's Hydrogen Technology Portfolio Manager, and Brian Korgel, the University of Texas Energy Institute Director, will be joined by leaders from MIT and S&P Global to discuss the crucial relationship between universities and industry in fostering purpose-driven innovation.

This panel is from 8:30–9 a.m. on Tuesday, March 11. More info here.

Solidec | Low-cost, Low-carbon Chemicals from Air

Solidec co-founder and CEO Ryan DuChanois will discuss how the company's approach to producing hydrogen peroxide and other key chemicals can be low-cost and low-carbon, creating a scalable path for a more sustainable chemical industry.

This panel is from 9-9:30 a.m. on Tuesday, March 11. More information here.

Collaboration Spotlight: The Carbon Hub: A public-private partnership leading the way to a sustainable carbon economy

Panelists from Rice University, Huntsman Advanced Materials, CERAWeek, The Kavli Foundation, and SABIC will discuss Rice's Carbon Hub's transformative power and what the future looks like for those creating this new carbon economy. Matteo Pasquali, the founding Director of the Carbon Hub, will be featured on the panel.

This panel is from 9:30-10 a.m. on Tuesday, March 11. More information here.

Rice University | Next-generation Electrolyzers and Electrolysis

Haotian Wang, Associate Professor in the Department of Chemical and Biomolecular Engineering at Rice University and co-founder of Solidec, will discuss the development of next-generation electrolyzers that enable lower-cost and more energy-efficient carbon capture, chemical manufacturing and critical metal recovery.

This panel is from 9:30–10:15 a.m. on Tuesday, March 11. More information here.

ExxonMobil | Real-world Progress on Building a Low-carbon Business

Schuyler Evans, ExxonMobil's CCS commerical and business development manager low carbon solutions, will speak on how the energy giant is navigating a complex energy transition and share insights into the strategic thinking behind building a new business that helps reduce emissions.

This panel is from 10-10:30 a.m. on Tuesday, March 11. More information here.

Enovate.AI | AI-driven Advantage: Automate. Optimize. Decarbonize.

Enovate.AI Chief Experience Officer Rebecca Nye, joined by Last Mile Production, will show how its 3-clicks digital strategy empowers operators to make faster, smarter decisions—reducing emissions, enhancing productivity and unlocking new levels of profitability.

This panel is from 10:30–11 a.m. on Tuesday, March 11. More information here.

Financing the Future: Scaling clean energy through innovative investment strategies

Jim Gable, president of Chevron Technology Ventures and vice president of innovation, along with Greentown Lab's new CEO Georgina Campbell Flatter, will discuss the bankability of technologies in different geographies, investment opportunities in emerging markets, sources of funding and risk management strategies investors are using. Panelists also include leaders from Siemens Energy, Energy Impact Partners, and S&P Global Commodity Insights.

This panel is from 12:30–1:10 p.m. on Tuesday, March 11. More information here.

Sage Geosystems | Geothermal at the Speed of Need: How Sage Geosystems is meeting growing energy demand

Learn from Jason Peart, general manager of strategy and development, how Sage's approach to geothermal technology is tackling the fast-growing energy demands of critical sectors, including data centers, utilities, energy storage, and US Department of Defense projects.

This panel is from 1:30–2 p.m. on Tuesday, March 11. More information here.

Rice University | Valuing Nature-based Solutions for CO2 Removal

Carrie Masiello, director of the Rice Sustainability Institute, will introduce to the breadth of nature-based solutions possible, explore some of the most exciting opportunities and give guidance on how to think rigorously about matching individual NBS opportunities to specific portfolio needs.

This panel is from 1:30–2:15 p.m. on Tuesday, March 11. More information here.

Square Robot | Bridging the Divide: How Square Robot's tank inspections align corporate strategy with on-the-ground reality

Square Robot CEO David Lamont will discuss how companies can keep their tank assets online by adopting new technology and navigating the challenges of aligning corporate objectives with site-level realities.

This panel is from 3–3:30 p.m. on Tuesday, March 11. More information here.

The Green Gold Rush: A multi-trillion dollar opportunity?

Bobby Tutor, chairman of Houston Energy Transition Initiative and CEO of Artemis Energy Partners, will be joined by leaders from Accenture, S&P Global, and BeyondNetZero to discuss the immense economic potential of climate solutions and highlight the business opportunities created by the transition to a low-carbon economy.

This panel is from 4–4:30 p.m. on Tuesday, March 11. More information here.

ExxonMobil | Applying Technology to Maximize Value in the Permian Basin

James Ritchie, Exxon's vice president upstream technology portfolio, will share the latest technologies being developed and deployed to improve recovery and capital efficiency in the Permian Basin and demonstrate how these technologies and innovations maximize overall value while reducing greenhouse gas emissions and water usage.

This panel is from 2:30–3 p.m. on Wednesday, March 12. More information here.

Rice University | Plasma Foundry for Scalable Industrial Decarbonization

Aditya Mohite, a Rice professor and the faculty director of the Rice Engineering Initiative for Energy Transition and Sustainability (REINVENTS), will share how The Plasma Foundry, a 1:1 customized accelerator at Rice, is using cold plasma technology and its accelerator model to provide disruptive solutions at scale.

This panel is from 9:30–10:15 a.m. on Thursday, March 13. More information here.

Fervo Energy | Speed and Scale: The Geothermal Decade Is Now

Quinn Woodard Jr., Fervo Energy's senior director, power generation and surface facilities, will discuss how the company is pioneering transformative EGS technology to power data centers, homes and beyond.

This panel is from 10:30–11 a.m. on Thursday, March 13. More information here.

Corrolytics | Digitizing and Revolutionizing Corrosion Detection and Monitoring for Industrial Assets

Anwar Sadek, Corrolytics co-founder and CEO, will share how the company is revolutionizing corrosion detection and monitoring with patented technology to proactively enhance safety, reduce costs and extend asset lifespan.

This panel is from 10:30–11 a.m. on Thursday, March 13. More information here.

Zeta Energy | The Rise of Lithium-Sulfur Batteries: A solution to critical metal constraints

Rodrigo Salvatierra, Zeta's chief science officer, will introduce Zeta Energy’s lithium-sulfurized carbon technology, which effectively addresses the key limitations of lithium-sulfur batteries.

This panel is from 3–3:30 p.m. on Thursday, March 13. More information here.

Future Cities on the Move: Innovative pathways for sustainable urban mobility

Lisa Lin, Harris County's director of sustainability, will speak on this panel on successful public-private partnerships driving innovation in sustainable transport by leveraging technology and data analytics. She'll be joined by Aberdeen's council co-lead and leaders from S&P Global and GreenCap, based in Cape Town, South Africa.

This panel is from 3:30–4 p.m. on Thursday, March 13. More information here.

Collaboration Spotlight: Building a resilient Gulf Coast energy and chemical sector

Greater Houston Partnership and HETI's Jane Stricker will join Ramanan Krishnamoorti from the University of Houston and leaders from Argonne National Laboratory and SABIC to explore opportunities and pathways to strengthen the US Gulf Coast’s global leadership position in base chemical manufacturing and the national security and economic opportunities that innovation and process integration create.

This panel is from 4:30–5 p.m. on Thursday, March 13. More information here.

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Chevron enters lithium market with Texas land acquisition

to market

Chevron U.S.A., a subsidiary of Houston-based energy company Chevron, has taken its first big step toward establishing a commercial-scale lithium business.

Chevron acquired leaseholds totaling about 125,000 acres in Northeast Texas and southwest Arkansas from TerraVolta Resources and East Texas Natural Resources. The acreage contains a high amount of lithium, which Chevron plans to extract from brines produced from the subsurface.

Lithium-ion batteries are used in an array of technologies, such as smartwatches, e-bikes, pacemakers, and batteries for electric vehicles, according to Chevron. The International Energy Agency estimates lithium demand could grow more than 400 percent by 2040.

“This acquisition represents a strategic investment to support energy manufacturing and expand U.S.-based critical mineral supplies,” Jeff Gustavson, president of Chevron New Energies, said in a news release. “Establishing domestic and resilient lithium supply chains is essential not only to maintaining U.S. energy leadership but also to meeting the growing demand from customers.”

Rania Yacoub, corporate business development manager at Chevron New Energies, said that amid heightening demand, lithium is “one of the world’s most sought-after natural resources.”

“Chevron is looking to help meet that demand and drive U.S. energy competitiveness by sourcing lithium domestically,” Yacoub said.

Engie to add 'precycling' agreements for forthcoming solar projects

reduce, reuse

Houston-based Engie North America has partnered with Arizona-based Solarcycle to recycle 1 million solar panels on forthcoming projects with a goal of achieving project circularity.

The collaboration allows Engie to incorporate "precycling" provisions into power purchase agreements made on 375 megawatts worth of projects in the Midwest, which are expected to be completed in the next few years, according to a news release from Engie.

Engie will use Solarcycle's advanced tracking capabilities to ensure that every panel on the selected projects is recycled once it reaches its end of life, and that the recovered materials are returned to the supply chain.

Additionally, all construction waste and system components for the selected projects will be recycled "to the maximum degree possible," according to Engie.

“We are delighted to bring this innovative approach to life. Our collaboration with Solarcycle demonstrates the shared commitment we have to the long-term sustainability of our industry,” Caroline Mead, SVP power marketing at ENGIE North America, said in the release.

Solarcyle, which repairs, refurbishes, reuses and recycles solar power systems, estimates that the collaboration and new provisions will help divert 48 million pounds of material from landfills and avoid 33,000 tons of carbon emissions.

“ENGIE’s precycling provision sets a new precedent for the utility-scale solar industry by proving that circular economy principles can be achieved without complex regulatory intervention and in a way that doesn’t require an up-front payment," Jesse Simons, co-founder and chief commercial officer at SOLARCYCLE, added in the release. "We’re happy to work creatively with leaders like ENGIE to support their commitment to circularity, domestic energy, and sustainability.”

Houston team’s discovery brings solid-state batteries closer to EV use

a better battery

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.