This Houston medical device innovator plans to lead a 'paradigm shift' in vascular surgery

HOUSTON INNOVATORS PODCAST EPISODE 199

Tim Boire, CEO and co-founder of VenoStent, shares his company's roadmap on this week's episode of the Houston Innovators Podcast. Photo via LinkedIn

Commercializing a health tech innovation is a long game — fraught with regulatory obstacles, cyclical rounds of funding, and continuous improvement — all fueled by the desire to enhance treatment and save lives.

That's Tim Boire's plan. And it's a thorough one at that. On this week's episode of the Houston Innovators Podcast, Boire — president and CEO of VenoStent, a medical device startup that’s designing a unique material for hemodialysis patients — shares his roadmap for his company.

"We believe we can be pioneers of a paradigm shift in vascular surgery — to not just treat problems after they've already occurred, but actually prevent them from occurring in the first place," he says in the episode.

VenoStent's most recent hurdle cleared is closing a $16 million series A round of venture funding. Two Charleston, South Carolina-based firms — Good Growth Capital and IAG Capital Partners — led the round. The TMC Venture Fund also contributed.

Now, VenoStent is headed for a 200-patient trial in the United States, with an ultimate goal of product launch in 2026. The company's unique medical device is a bioabsorbable wrap that reduces vein collapse by providing mechanical support and promoting outward vein growth.

Boire had the idea for VenoStend when he was completing his PhD at Vanderbilt University. He completed the program, and then joined the HealthWildcatters accelerator in 2017 in Dallas. After that, Boire and his co-founder, Geoff Lucks, decided to take the leap and move to Houston to join JLABS at TMC. The rest, as they say, is history.

“Houston’s been a great place to hire,” Boire says. “We've been I think very fortunate to find our employees who are stellar, true believers in the technology — amazing engineers, and amazing people.”

And, of course, Boire has a plan to continue this hiring success. He says the goal is to grow to a team of 16 by the end of the year. Marketing and sales roles will likely be filled in 2025 ahead of product launch.

“When we think about what our mission is at VenoStent, it’s to ultimately improve patient care — and we are very passionate about this specific problem that patients experience and go through,” Boire says.

“That's what drives everything we're doing as a company to improve quality and length of life for patients who have chronic kidney disease that progresses to a point where they need dialysis to sustain life," he continues. "We believe that we can become the standard care for vascular surgery starting with hemodialysis access."

As VenoStent's trials and growth goes according to plan, Boire says this product can be used for other implications.

Boire shares more on his grand plan, plus how he weathered the storm that is fundraising at a time where so much venture capital activity has slowed. Listen to the interview here — or wherever you stream your podcasts — and subscribe for weekly episodes.

From Your Site Articles
7 Hills Pharma, an innovative immunotherapy company, was awarded a $13.5 million grant from the Cancer Prevention and Research Institute of Texas. Photo via Getty Images

Houston immunotherapy company to use $13.5M grant to further develop cancer treatments

future of pharma

Between Bangalore and Chennai in the Indian state of Andhra Pradesh, you’ll find the town of Tirupati. It’s home to seven peaks that host a Hindu temple complex devoted to a form of Vishnu, Venkateshvara. It is also the region from which Upendra Marathi originally hails. It’s where his father, and many other family members, attended medical school.

“My father’s first job was to take care of the pilgrims,” recalls Marathi.

It's only natural that his groundbreaking Houston company would be named 7 Hills Pharma.

“That sort of selflessness and giving back, I wanted to embody it in the name of the company,” Marathi says.

Now, 7 Hills Pharma is announcing that last month, it was awarded a $13.5 million grant from the Cancer Prevention and Research Institute of Texas (CPRIT). That’s on top of more than $13 million in NIH grants, making the company the second largest recipient of SBIR/STTR grants in Texas.

Launched in 2016, 7 Hills Pharma is working to develop drugs that can overcome the all-too-common problem of immunotherapy resistance. Thanks to the Nobel Prize-winning work of Jim Allison in the realm of immuno-oncology, the field was “very hot” at the time, says Marathi, particularly in Houston.

So what has 7 Hills developed? Oral small molecules that activate integrins — the receptors that allow cells to bind to one another — allowing for the cell-to-cell interactions that create a successful immune response to immune checkpoint inhibitors such as Yervoy. In other words, they have created capsules that increase the effectiveness of drugs that allow the body’s own immune response to fight cancers.

But that’s not all. Tests have shown that the same discovery, called alintegimod, can also augment the effectiveness of vaccines. The pill, which co-founder and co-inventor Peter Vanderslice calls “a beautiful way to amplify the vaccines,” can potentially be applied to anything from influenza to coronavirus.

Their greatest challenge, says Vanderslice, is the very fact that the technology is so novel.

“Most large pharmas are very risk averse,” he explains. “They only want to do ‘me-too’ kinds of drugs.”

7 Hills Pharma is the third company Marathi, both a PhD and an MBA, has helped to found based on technology he co-invented. Vanderslice is director of the molecular cardiology research laboratories at The Texas Heart Institute.

“It’s very much a homegrown company,” Marathi says.

And a small one, at least for now. Working out of JLabs@TMC, the full-time team is currently just Marathi and Siddhartha De, the senior director of development. Marathi convinced De to transplant himself and his family from India for the purpose of assisting 7 Hills with preparing its drugs for clinical readiness.

The CPRIT funds will allow 7 Hills Pharma to hire several long-time team members full-time and with benefits.

“The bringing of talent and bringing of technology to TMC and what was born at Texas Heart Institute is rather remarkable,” says Rob Bent, the company’s director of operations.

The next step for 7 Hills Pharma is a Phase Ib/IIa clinical trial in patients with treatment-resistant solid tumors. And the team just finalized the deck that will help raise another $10 million to $250 million in the company’s series A. And hopefully sooner rather than later, a new set of medical pilgrims will be thanking 7 Hill Pharma for its care.

It's a busy month in Houston. Luis Alvarez/Getty Images

10+ can't-miss Houston business and innovation events for March

Where to be

Editor's note: SXSW has been canceled due to the coronavirus since the publishing on this events roundup. The original version of this article is below.

March is a busy month for Houston in general — but especially when it comes to innovation. The inaugural Houston Tech Rodeo starts out the month and the Rice Business Plan Competition closes out March in a few weeks — and the interactive weekend at SXSW falls right in the middle of the month for those planning the trip to Austin.

But for the Houston innovators in the energy industry, March got a little less busy when CERAWeek by IHS Markit was canceled due to the growing threat of the coronavirus, or COVID19.

Should any other events below have that same fate, this article will be updated.

March 2-6 — Houston Tech Rodeo

A week full of events, the Tech Rodeo is made up of over 30 innovation events across Houston. These are InnovationMap's picks for what to attend during the week. For a complete list of the events (most of which are free), head to the website.

Details: The event is from Monday, March 2, to Friday, March 6 across Houston. Learn more.

March 5 — Space Center Houston's Thought Leader Series: Designing for Human Performance

Learn how human factors engineering relates to spacecraft and spacesuit design while celebrating Women's History Month and the 20th anniversary of the International Space Station. Speakers include Celena Dopart, human factors engineer for Starliner at Boeing, and Katie Spira, NASA flight controller.

Details: The event is at 7 pm on Thursday, March 5, at Space Center Houston (1601 E NASA Pkwy). Learn more.

March 6 — Premier Talks: Women in Innovation & Technology 

Join this panel of accomplished women as they discuss the importance of being a woman in the current workforce and leading among your peers. Be empowered to self-evaluate, inspire those around you, and raise the bar on your professional goals. Discuss the challenges women face in a male dominated technology workforce and why it is important to take the limits off of your thinking.

Details: The event is from 9:15 to 11 am on Friday, March 6, at GA Houston (1301 Fannin St, Floor 21). Learn more.

March 6 — The Greater Houston Partnership’s Rise to the Top

Celebrating International Women's Day, the Greater Houston Partnership and the Partnership's Women's Business Alliance brings the Rise to the Top event. Expect a keynote address from Gretchen Watkins, president atShell Oil Company and executive vice president at Global Unconventionals, Shell Oil Company, and candid conversations from a panel of female executives discussing the challenges and triumphs of succeeding as a woman in today's business environment.

Details: The event is from 10:30 am to 1:30 pm on Friday, March 6, at Hilton Americas (1600 Lamar St.). Learn more.

March 10 — Equinor & Techstars Energy Accelerator Meet & Greet

If you're an energy-focused startup, don't miss this info session with the Equinor & Techstars Energy Accelerator, which is visiting Houston and looking for the 10 best energy companies for its next cohort.

Details: The event is from 6 to 9 pm on Monday, March 10, at The Ion (1301 Fannin Street, Suite 2440). Learn more.

March 10-11 — Energy 2.0: Equality, Environment, and the New Economy

Join over 100,000 people taking part in Energy 2.0 2020; an innovative experience that addresses new frontiers in the energy industry where business, workforce, environment, innovation, and policy intersect. Spread across multiple locations and continents, corporate watch sites around the globe, and simulcast online, Energy 2.0 brings energy professionals and a diverse mix of experts across various disciplines together for learning and networking opportunities.

Details: The event is from Monday, March 10, to Tuesday, March 11, online and at The Westin Houston, Memorial City (945 Gessner Rd.). Learn more.

March 12 — Lunch n' Learn: In Today's Market - Do Patents Even Matter?

Inventors and business professionals are asked to review the claims of their patent application before it is filed. This step is THE critical step that is supposed to ensure that the claims will protect their invention. The decision you make here determines if you will be part of the 97 percent of all patents that never recoup the cost of filing them.

Details: The event is from noon to 1:30 pm on Wednesday, March 12, at The Ion (1301 Fannin Street, Suite 2440). Learn more.

March 19 — Science First: How 3D Printing is Reshaping the Future of Healthcare

Technology is evolving faster than ever – and advancements in 3D printing could revolutionize the delivery of healthcare products and solutions to change the trajectory of health for humanity.

Details: The event is from 11:30 am to 2 pm on Wednesday, March 19, at JLABS @ TMC (2450 Holcombe Blvd.). Learn more.

March 24 — How to Form a Micro VC Fund Workshop at Mercury Fund

Welcoming all angels, previous founders, MBA students, aspiring and current venture capitalists that are interested in learning more about the basic essentials for starting a small venture fund. Speakers are Blair Garrou of Mercury Fund and Justin LaPoten of BADR Investments.

Details: The event is from 10 to 11 am on Tuesday, March 24, at Mercury Fund (3737 Buffalo Speedway, #Suite 1750). Learn more.

March 25 — 2020 H. Albert Napier Rice Launch Challenge - Startup Competition

The H. Albert Napier Rice Launch Challenge Startup Competition is Rice's newest entrepreneurship competition, awarding over $60,000 in prize money to Rice-affiliated teams. Students and alumni enter business ideas (high growth ventures or small business ideas) to compete.

Details: The event is from 6 to 9 pm on Wednesday, March 25, at Liu Idea Lab For Innovation & Entrepreneurship (Rice University - Cambridge Office Building). Learn more.

March 26 — T3CH Workshop: Grow With Google "Using Data to Drive Business Growth"

In this T3CH workshop, you'll learn best practices on data-driven decision making; and get practical guidance on how to find and analyze trends regarding online customer engagement with your business, so you can turn those insights into well-informed, actionable decisions.

Details: The event is from noon to 1 pm on Thursday, March 26, at Impact Hub Houston @ The Cannon Post Oak (675 Bering Drive, #200). Learn more.

March 26-28 — Rice Business Plan Competition

The event — dubbed the "world's richest and largest student startup competition" — begins later this month. The Rice Business Plan Competition will host 42 student teams from all over the world. The three-day contest consists of pitches, judging, and a closing banquet where the winners are revealed.

Details: The event is from Thursday, March 26, to Saturday, March 28, at Rice University and the Hilton Americas. Learn more.

Check out these panels, networking meetups, and more. Getty Images

10+ can't-miss Houston business and innovation events for February

Where to be

Despite the short month, Houston will play host to tons of innovation networking, panel, and meetup events throughout the month of February. And, it's a leap year, so take that as an opportunity to jump into the startup ecosystim in town.

If you know of innovation-focused events for this month or next, email me at natalie@innovationmap.com with the details andsubscribe to our daily newsletterthat sends fresh stories straight to your inboxes every morning.

February 4 — How AI Can Boost Your Business with Ryan Shirzadi of Tekrevol

How can artificial intelligence help grow your business? Specifically, Ryan Shirzadi of Tekrevol will be covering the social impacts, industries affected, why you need an AI strategy, and how AI can help small businesses grow. Networking will follow the discussion and pizza will be provided by Tekrevol.

Details: The event is from 6 to 7:30 pm on Tuesday, February 4, at Station Houston (1301 Fannin Street, Suite 2440). Learn more.

February 5 — Meet and Greet with Pat Matthews, CEO & Founder of Active Capital

Meet Active Capital's founder and CEO, Pat Matthews. Rakesh Agrawal, founder and CEO of Snapstream, will interview Matthews followed up by an open Q&A and conversation with the audience.

Details: The event is from 5:30 to 6:45 pm on Wednesday, February 5, at WeWork (708 Main Street, 3rd Floor). Learn more.

February 5 — Houston Social Entrepreneurship Meetup

The meetup brings together like-minded individuals from the nonprofit, social enterprise, impact investing, technology and many other fields to understand the concept of social entrepreneurship and be inspired to find new ways to tackle local social issues. At each meetup, you'll get an intro to social entrepreneurship, hear from a social entrepreneur in Houston, and network with other changemakers from across the entrepreneur ecosystem.

Details: The event is from 5:30 to 7:30 pm on Wednesday, February 5, at Impact Hub Houston @ The Cannon Downtown (1801 Main St., 13th Floor). Learn more.

February 6 — Fail Forward presented by Frost Bank

Join BakerRipley and Frost Bank for an evening of #FailForward fun and get real, behind-the-scenes stories straight from entrepreneurs on the challenges they faced trying to access and raise funding for their small business or startups.

Details: The event is from 6 to 8 pm on Thursday, February 6, at BakerRipley Center (4450 Harrisburg Blvd.). Learn more.

February 12 — The Impact of AI on Automation and the Future of the Workforce

Technology and innovation are rapidly changing how we do and think about work. This panel event seeks to bring together respected leaders in the corporate and entrepreneurial worlds to have meaningful conversations on AI, automation and the future of workforce.

Details: The event is from 6:30 to 9 pm on Wednesday, February 12, at GA Houston (1301 Fannin St, Floor 21). Learn more.

February 13 — Female Founders Breakfast with Baker Botts and The Artemis Fund

Baker Botts L.L.P. and The Artemis Fund have come together to bring you a breakfast panel discussion on how a good corporate governance system and a little corporate housekeeping can avoid larger messes down the road.

Details: The event is from 8:30 to 10:30 am on Thursday, February 13, at Baker Botts (910 Louisiana St., 32nd Floor). Learn more.

February 18 — How She Got There: Women Leaders in Tech

Join General Assembly for an evening good conversation with a panel of females in tech. These inspirational women will share their stories on how they got to where they are today and share their insights into being a woman in business and tech.

Details: The event is from 6:30 to 9 pm on Tuesday, February 18, at GA Houston (1301 Fannin St, Floor 21). Learn more.

February 19 — Houston Angel Summit

Join the Houston Angel Network for its bi-annual summit. Attendees will learn the basics of angel investing as well as hear from experts on the topics of term sheets and tax implication of early stage investing. This event is open to accredited investors, HAN members and individuals from our partnership organizations. The price of attendance — $100 — will be applied to annual membership if attendees decide to join the Houston Angel Network.

Details: The event is from 9 am to 3 pm on Wednesday, February 19, at Liu Idea Lab for Innovation and Entrepreneurship (Cambridge Building at Rice University). Learn more.

February 20 — The Five W's of Holding Your First, First-in-Human Trial

Who, what, when, where and why to hold your first, first-in-human clinical trial? JLABS has tapped into experts in the field from Johnson & Johnson, CROs and agencies to help you answer these questions and more.

Details: The event is from 11:30 am to 2 pm on Thursday, February 20, at JLABS @ TMC (2450 Holcombe Blvd.). Learn more.

February 20 — Bunker Brews Houston: How to be Mentored in Your Business

Lots of entrepreneurs fail to seek out mentors, and struggle in silence and isolation because of it. Some will find great mentors, but fail to recognize the unspoken rules of the road to acquire, activate, and maintain a mentor-mentee relationship. Hear from some great local mentors of business owners.

Details: The event is from 6 to 8 pm on Thursday, February 20, at MassChallenge (1313 Main St., Suite 210). Learn more.

February 20 — Rising Stars in Houston Health Tech

Join General Assembly for an epic night with some of the Houston's most inspiring healthtech founders and leaders. In a candid discussion, they'll share their stories and insights.

Details: The event is from 6:30 to 9 pm on Thursday, February 20, at GA Houston (1301 Fannin St, Floor 21). Learn more.

February 24 — Made in Houston: Celebrating Black History Month

In honor of Black History Month, General Assembly has organized an evening with some of Houston's legendary innovators and creators. Each speaker will share their tips and tricks on how to create a unique product, service or brand that's pushing the boundaries while sharing their journey.

Details: The event is from 6:30 to 9 pm on Monday, February 24, at GA Houston (1301 Fannin St, Floor 21). Learn more.

February 25 — The Cannon Lunch & Learn: Show me the Money

As an early stage company, raising capital is or will be a significant part of your efforts and can present major challenges. Preparation and an understanding of what drives value is crucial to attracting investors. Join Cannon partner, Baker Tilly, as they provide an overview of the capital raise process and highlight key factors to consider when preparing to raise capital.

Details: The event is from 11:30 am to 1 pm on Tuesday, February 25, at The Cannon (1334 Brittmoore Road). Learn more.

Vivante Health, which uses technology and at-home testing to help users treat chronic digestive health issues, has raised $5.8 million. Getty Images

Digital health startup based in Houston closes $5.8 million round

Money moves

A Houston health technology startup that uses digital solutions and on-demand support to help its users with digestive health has closed a Series A round of funding.

Vivante Health raised $5.8 million in a series A1 round, according to a news release. The round was led by California-based Lifeforce Capital and Athens, Greece-based Big Pi Ventures. Additionally, NFP Ventures, FCA Venture Partners, and Longmont Capital contributed to the round.

"We knew we were onto something when the market responded so positively," says Dr. Kimon Angelides, Vivante Health founder and CEO, in the release, "but support from esteemed, experienced and successful firms like Lifeforce and Big Pi, and the continued strong support from our initial investor partners, give us a very encouraging boost of confidence as we carry out our vision and further develop the GIThrive platform."

With the fresh funds, Vivante will continue to develop its GI health platform, GIThrive. The digital tool has an at-home microbiome test kit for users, as well as a breath tester that monitors food sensitivities. GIThrive also connects users to on-demand support from nutritionists and experts on the GIThrive app.

The startup's Houston headquarters is based out of the Johnson & Johnson Innovation Center, JLabs@TMC, but has offices in Nashville, Chicago, and Athens. Angelides, who honors his Greek heritage by spending a fair about of time in Greece, says in the release how important the Big Pi investment is for him.

"This partnership with Big Pi, a tech-based investment firm who's driven by the desire to support Greek talent, makes perfect sense. What's more, we have partnered with a team who themselves have been very successful entrepreneurs," says Angelides in the release.

Angelides, who has founded three other health tech companies, impressed Big Pi with his entrepreneurial track record and nationwide team

"This is one of those rare investments where the financial upside goes hand in hand with the prospect of radically improving the lives of millions of people across the globe," says Marco Veremis, investment partner with Big Pi, in the release.

Lifeforce Capital has a portfolio of software startups, including Aspire, Cricket Health, Notable Labs, One Medical, and Second Genome, per the news release, and the VC firm is excited for their new addition.

"We were immediately struck by Kim's entrepreneurial passion and big vision," says Sander Duncan, general partner with Lifeforce Capital, in the release. "We are thrilled to work with the Vivante team to build the first platform tackling digestive disease for millions of suffering patients."

Ad Placement 300x100
Ad Placement 300x600

CultureMap Emails are Awesome

Property Showcase

UH student earns prestigious award for cancer vaccine research

up-and-comer

Cole Woody, a biology major in the College of Natural Sciences and Mathematics at the University of Houston, has been awarded a Barry Goldwater Scholarship, becoming the first sophomore in UH history to earn the prestigious prize for research in natural sciences, mathematics and engineering.

Woody was recognized for his research on developing potential cancer vaccines through chimeric RNAs. The work specifically investigates how a vaccine can more aggressively target cancers.

Woody developed the MHCole Pipeline, a bioinformatic tool that predicts peptide-HLA binding affinities with nearly 100 percent improvement in data processing efficiency. The MHCole Pipeline aims to find cancer-specific targets and develop personalized vaccines. Woody is also a junior research associate at the UH Sequencing Core and works in Dr. Steven Hsesheng Lin’s lab at MD Anderson Cancer Center.

“Cole’s work ethic and dedication are unmatched,” Preethi Gunaratne, director of the UH Sequencing Core and professor of Biology & Biochemistry at NSM, said in a news release. “He consistently worked 60 to 70 hours a week, committing himself to learning new techniques and coding the MHCole pipeline.”

Woody plans to earn his MD-PhD and has been accepted into the Harvard/MIT MD-PhD Early Access to Research Training (HEART) program. According to UH, recipients of the Goldwater Scholarship often go on to win various nationally prestigious awards.

"Cole’s ability to independently design and implement such a transformative tool at such an early stage in his career demonstrates his exceptional technical acumen and creative problem-solving skills, which should go a long way towards a promising career in immuno-oncology,” Gunaratne added in the release.

Houston founder on shaping the future of medicine through biotechnology and resilience

Guest Column

Living with chronic disease has shaped my life in profound ways. My journey began in 5th grade when I was diagnosed with Scheuermann’s disease, a degenerative disc condition that kept me sidelined for an entire year. Later, I was diagnosed with hereditary neuropathy with liability to pressure palsies (HNPP), a condition that significantly impacts nerve recovery. These experiences didn’t just challenge me physically, they reshaped my perspective on healthcare — and ultimately set me on my path to entrepreneurship. What started as personal health struggles evolved into a mission to transform patient care through innovative biotechnology.

A defining part of living with these conditions was the diagnostic process. I underwent nerve tests that involved electrical shocks to my hands and arms — without anesthesia — to measure nerve activity. The pain was intense, and each test left me thinking: There has to be a better way. Even in those difficult moments, I found myself thinking about how to improve the tools and processes used in healthcare.

HNPP, in particular, has been a frustrating condition. For most people, sleeping on an arm might cause temporary numbness that disappears in an hour. For me, that same numbness can last six months. Even more debilitating is the loss of strength and fine motor skills. Living with this reality forced me to take an active role in understanding my health and seeking solutions, a mindset that would later shape my approach to leadership.

Growing up in Houston, I was surrounded by innovation. My grandfather, a pioneering urologist, was among the first to introduce kidney dialysis in the city in the 1950s. His dedication to advancing patient care initially inspired me to pursue medicine. Though my path eventually led me to healthcare administration and eventually biotech, his influence instilled in me a lifelong commitment to medicine and making a difference.

Houston’s thriving medical and entrepreneurial ecosystems played a critical role in my journey. The city’s culture of innovation and collaboration provided opportunities to explore solutions to unmet medical needs. When I transitioned from healthcare administration to founding biotech companies, I drew on the same resilience I had developed while managing my own health challenges.

My experience with chronic disease also shaped my leadership philosophy. Rather than accepting diagnoses passively, I took a proactive approach questioning assumptions, collaborating with experts, and seeking new solutions. These same principles now guide decision-making at FibroBiologics, where we are committed to developing groundbreaking therapies that go beyond symptom management to address the root causes of disease.

The resilience I built through my health struggles has been invaluable in navigating business challenges. While my early career in healthcare administration provided industry insights, launching and leading companies required the same determination I had relied on in my personal health journey.

I believe the future of healthcare lies in curative treatments, not just symptom management. Fibroblast cells hold the promise of engaging the body’s own healing processes — the most powerful cure for chronic diseases. Cell therapy represents both a scientific breakthrough and a significant business opportunity, one that has the potential to improve patient outcomes while reducing long-term healthcare costs.

Innovation in medicine isn’t just about technology; it’s about reimagining what’s possible. The future of healthcare is being written today. At FibroBiologics, our mission is driven by more than just financial success. We are focused on making a meaningful impact on patients’ lives, and this purpose-driven approach helps attract talent, engage stakeholders, and differentiate in the marketplace. Aligning business goals with patient needs isn’t just the right thing to do, it’s a powerful model for sustainable growth and lasting innovation in biotech.

---

Pete O’Heeron is the CEO and founder of FibroBiologics, a Houston-based regenerative medicine company.


Houston researchers make headway on affordable, sustainable sodium-ion battery

Energy Solutions

A new study by researchers from Rice University’s Department of Materials Science and NanoEngineering, Baylor University and the Indian Institute of Science Education and Research Thiruvananthapuram has introduced a solution that could help develop more affordable and sustainable sodium-ion batteries.

The findings were recently published in the journal Advanced Functional Materials.

The team worked with tiny cone- and disc-shaped carbon materials from oil and gas industry byproducts with a pure graphitic structure. The forms allow for more efficient energy storage with larger sodium and potassium ions, which is a challenge for anodes in battery research. Sodium and potassium are more widely available and cheaper than lithium.

“For years, we’ve known that sodium and potassium are attractive alternatives to lithium,” Pulickel Ajayan, the Benjamin M. and Mary Greenwood Anderson Professor of Engineering at Rice, said in a news release. “But the challenge has always been finding carbon-based anode materials that can store these larger ions efficiently.”

Lithium-ion batteries traditionally rely on graphite as an anode material. However, traditional graphite structures cannot efficiently store sodium or potassium energy, since the atoms are too big and interactions become too complex to slide in and out of graphite’s layers. The cone and disc structures “offer curvature and spacing that welcome sodium and potassium ions without the need for chemical doping (the process of intentionally adding small amounts of specific atoms or molecules to change its properties) or other artificial modifications,” according to the study.

“This is one of the first clear demonstrations of sodium-ion intercalation in pure graphitic materials with such stability,” Atin Pramanik, first author of the study and a postdoctoral associate in Ajayan’s lab, said in the release. “It challenges the belief that pure graphite can’t work with sodium.”

In lab tests, the carbon cones and discs stored about 230 milliamp-hours of charge per gram (mAh/g) by using sodium ions. They still held 151 mAh/g even after 2,000 fast charging cycles. They also worked with potassium-ion batteries.

“We believe this discovery opens up a new design space for battery anodes,” Ajayan added in the release. “Instead of changing the chemistry, we’re changing the shape, and that’s proving to be just as interesting.”

---

This story originally appeared on EnergyCapitalHTX.com.

View All Listings