Rice research: Incentives increase employee contribution to company success

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Allowing employees to select their incentives increases both the quantity and quality of their ideas. Photo via Getty Images

Companies can increase not only the volume but also the quality of employee suggestions and ideas by offering rewards and a choice, according to a study we published in 2022.

We conducted the study on 345 telemarketers at a call center in Taiwan, which already had a suggestion program set up to solicit creative ideas to improve the organization. The company rewarded those who suggested ideas deemed the most valuable by giving them a trophy.

We wanted to see how tweaking the reward changed the quantity and quality of suggestions. So we invited the employees to submit ideas and that if their suggestions ranked among the top 20% most creative ideas – as evaluated by a team of managers and researchers – they would receive one of four rewards: US$80 in cash for themselves, $80 to share with colleagues, $80 to give to a preferred charitable organization or priority when selecting days off. About half of the employees were offered a choice of the four rewards they would receive for submitting ideas. We then randomly assigned one of the four rewards to the remaining employees.

In total, we received and evaluated 144 ideas over a one-month period.

We found that employees who were given a choice of reward submitted 86% more ideas than those who were told what they would be getting. Moreover, the average creativity score of their ideas was 82% higher. Overall, our suggestion program elicited double the number of ideas as the company’s own program and resulted in ideas that were ranked 84% more creative.

Why it matters

Soliciting employee ideas can be a key driver of innovation in organizations.

When employees share their ideas about products, services or policies using a suggestion program, an organization can take those ideas and refine and then implement them.

These implemented ideas can enhance an organization’s ability to adapt and compete. A 2003 study of 47 organizations found that ideas submitted to employee suggestion programs saved those organizations more than $624 million in a single year.

Our own study suggests small incentives could have a significant impact on the quantity and quality of those employee suggestions.

What’s next?

Research is still needed on whether there is an optimal number of rewards that organizations should offer to get more submissions. One past study found that when employees were asked to choose from a large set of rewards, they felt overwhelmed and produced few ideas.

Future research can also test whether our results can be found in other types of organizations, with employees in other types of jobs and in other parts of the world. We plan to examine these issues in our future studies of suggestion programs.

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This article originally ran on Rice Business Wisdom and was based on research from Jing Zhou, the Mary Gibbs Jones Professor of Management and Psychology in Organizational Behavior at the Jones Graduate School of Business of Rice University.

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Managers can nurture creativity, even in workers who appear less creative, by building a supportive environment. Image via Pexels

Workplaces need to support and encourage creativity, according to Houston research

houston voices

Give a kid a toy car, a stuffed bear, or an armful of blocks, and she is off on an imaginative romp, staging epic battles, building palaces or creating new worlds.

Coaxing creativity from adults is more challenging. But if creativity in children develops their spirits, creativity in adults enriches productivity — especially at the office.

It’s simple math. Creativity is where ideas come from; ideas form the basis for innovation. In an increasingly competitive world economy, it’s innovation that allows businesses to survive and thrive. This makes creativity a prized commodity in the job market. For managers, cultivating creativity in their workforce is a crucial professional skill.

Identifying the best circumstances to make creativity bloom is one of the driving questions in a study by Rice Business Professor Jing Zhou and colleague Inga J. Hoever, a professor at the Barcelona School of Management in Spain.

To explore the mystery of creativity, the two scholars first reviewed the hefty body of research by organizational psychologists and management scholars who’ve studied innovation in employees and teams. Most early research in this field, published since 2000, focused on the creativity of the actor — the individual or the team — or else revolved around the work environment.

Current academic research takes a more holistic look. By studying the interaction between the character traits of the worker or the team, the leader or the supervisor, and the prevailing atmosphere at the workplace, researchers are unveiling new insights.

Studies show, for example, that the benefits of benevolent leadership expand when workers recognize creativity as an important component of their role. Not only that, creativity is highest in employees who experience high levels of both positive and negative moods and feel supported by their supervisors. Other research finds that leaders who empower their workers get a greater payback in creativity.

To explore these findings further, Zhou and Hoever developed a typology that sorts out research about workplace creativity based on interactions between the worker (which they call the “actor”) and the workplace (which they call “context”).

The best-case scenario is a positive actor in a positive context, a mix that is synergistic for creativity. Worst case: When a positive actor languishes in a negative context or, similarly, when a negative actor stews in a positive context. At the extreme end of possibility, a negative actor in a negative context is downright antagonistic to creativity, Zhou and Hoever found.

There’s one final type of employee-workplace interaction: the “configurational” experience, which includes factors that are neutral in shaping creativity, but, when combined with other factors, cause a kind of chemical reaction that boosts or blocks creativity.

Zhou’s research serves up some bad news and good news for managers. Choosing and hiring employees who are creative is not enough, it turns out. If your workplace is discouraging, creativity will wither in almost anyone. On the brighter side, cultivate a nurturing environment and creative tendrils may sprout even in the most no-nonsense workers. Best of all, good managers can build a nurturing greenhouse environment. Practically speaking, it means that companies can and should train supervisors to cultivate creativity in their management choices.

Plenty of research gaps remain, however. To fill them, Zhou has outlined an ambitious agenda for future research, including a close look at the impact of workplaces on collective creativity; exploring as-yet unidentified factors in workers and work settings that spark creative thinking; and seeking ways to vanquish the effects of unsupportive environments.

Making creativity happen at work, in other words, isn’t child’s play.

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This article originally ran on Rice Business Wisdom and was based on research from Jing Zhou, the Mary Gibbs Jones Professor of Management and Psychology in Organizational Behavior at the Jones Graduate School of Business of Rice University.

A new program within Rice University's Executive Education school will foster education for corporate innovation. Photo courtesy of Rice

New program at Rice University to educate corporate leaders on innovation

tables have turned

As important as it is to foster innovation among startups, there's another side of the equation that needs to be addressed, and a new program at Rice University plans to do exactly that.

Executive Education at Rice University's Jones Graduate School of Business, which creates peer-based learning and professional programs for business leaders, has created a new program called Corporate Innovation. The program came about as Executive Education, which has existed since the '70s, has evolved over the past few years to create courses and programs that equip business leaders with key management tools in a holistic way.

"We realized we need to open the innovation box," says Zoran Perunovic, director of Executive Education and is also a member of the Innovation Corridor committee and a mentor at TMCx.

The program, which is open for registration and will take place September 28-30, will flip the script on how innovation is normally discussed and observed and instead take a holistic approach to innovation in a corporate setting.

"In the innovation space, you have two lines — one is the entrepreneurial and the other is happening in large, established organizations," Perunovic tells InnovationMap. "The mechanisms of innovation within in those companies are different than the entrepreneurial."

The course's professor is Jing Zhou, Mary Gibbs Jones Professor of Management and Psychology – Organizational Behavior, and she says that when people think "innovation" they think of startups or technology. However, when it comes to innovation at the corporate level, it's so much more than that.

"In the past, we think about corporate innovation, we think about technological advancements. Because we have so many world-class organizations in Houston, we feel like we are doing a good job," Zhou says.

"Innovation definitely includes technology, but it also involves new business models, new way of meeting customers, new work processes — everything we do in a large corporation, there's always a better way of doing it. That's our definition of our corporate innovation."

Zoran Perunovic (left) anf Jing Zhou created the Corporate Innovation program housed in Rice's Executive Education department. Photos courtesy of Rice

Zhou and Perunovic designed the program to target business professionals from all areas of the corporate world.

"People, managers, professionals, executives in all functional areas of business can benefit from this program," Zhou says. "We don't teach to just one function area. We teach the fundamental principles of how to drive innovation and broaden the cognitive space."

Perunovic concurs with his colleague and adds that, "everyone is relevant — that's the future of innovation." Another aspect of the program that's forward thinking is the idea of cross-industry innovation collaboration.

"In all our programs, especially this one, we are not encouraging members from one type of industry to join. We want diversity of industry," Perunovic says.

The program has an advisory board comprised of business leaders in Houston. The program's board is made up of:

  • Tanya Acevedo, chief technology officer of Houston Airport System
  • Barbara Burger, vice president of innovation at Chevron and president of Chevron Technology Ventures
  • Gareth Burton, vice president of technology at American Bureau of Shipping
  • David Hatrick, vice president of innovation at Huntsman Advanced Materials
  • Roberta L. Schwartz, executive vice president and chief innovation officer at Houston Methodist

Industry, position, and company notwithstanding, the program has value across the board in Houston, now more than ever.

"Innovation is no longer optional for large organizations," Zhou says. "It's required in whatever you do, and whatever space you're competing in."

Slightly-to-moderately overqualified workers are more likely to be valuable and to reimagine their duties in ways that advance their institutions. Getty Images

Rice Business research finds benefit to hiring overqualified employees

Houston voices

You're a rocket scientist. You've worked for NASA. You won a Nobel Prize. Shouldn't your qualifications give you an edge on a software developer job?

According to typical hiring practice, the answer is no. You might not even get an interview for a job sweeping the floor. That's because, for years, research has warned that hiring applicants with too much experience or too many skills will saddle you with employees who don't appreciate their jobs.

Now there's good news for rocket scientists and others who happen to be overqualified for their work. According to a groundbreaking new study coauthored by Rice Business professor Jing Zhou, workers who are slightly to moderately overqualified are actually more likely to be active and creative contributors to their workplace. As a result, they're more likely to be assets. The study adds to a new body of research about the advantages of an overqualified workforce.

Zhou's findings have widespread implications. Worldwide, almost half of the people who work for a living report that they are overqualified for their jobs. That means Zhou's research, conducted with Bilian Lin and Kenneth Law of the Chinese University of Hong Kong, applies to a vast segment of the labor market.

To reach its conclusions, Zhou's team launched two separate studies in China. The first looked at six different schools with a total of 327 teachers and 85 supervisors. The second analyzed an electronic equipment factory with 297 technicians. Both studies revealed a strong link between perceived slight and moderate overqualification and the frequency of "task crafting," that is, expanding the parameters of the work in more innovative and productive ways.

In the school study, teachers who were slightly to moderately overqualified set up new online networks with students and parents. They also rearranged classrooms in ways that made students more engaged and productive. Meanwhile, in the factory, workers took tests to gauge their abilities in complex tasks designing a ship. The ones who were slightly to moderately overqualified built more complex versions that reflected their superior competencies.

The key to both sets of workers' superiority was their impulse to "job craft." Every worker leaves a personal imprint: meeting the bare minimum of criteria, pushing to exceed expectations, innovating or imagining new or more useful ways of getting the job done. Expert "job crafters" turn this impulse into an art. Some redraw their task boundaries or change the number of tasks they take on. Others reconfigure their work materials or redefine their jobs altogether. Still others rearrange their work spaces and reimagine their work procedures in ways that can catapult their productivity upward.

For overqualified workers, Zhou's team found, task crafting is a psychological coping mechanism – a welcome one. Workers want to show their superiors the true level of their skills. Doing so fortifies their self-esteem and intensifies their bonds with the company they work for. Far from being dissatisfied, these overqualified workers are more productive, keen to help their organizations and interested in finding ways to be proud of their work.

So how did the outlook on such workers go from shadowy to brilliant? Past research, it turns out, focused rigidly on the fit between worker experience and a task. It didn't consider the nuanced human motivations that go into working, nor the full range of creativity or flexibility possible in getting a job done.

Thus, older studies cautioned that overqualified workers are likely to feel deprived and resentful. Zhou's research shows the opposite: a statistical correlation between worker overqualification and high job performance.

Organizations do need to do their part for this alchemy to work. Above all, Zhou writes, it's crucial to build a strong bond between worker and institution. This is because workers who identify strongly with their workplace feel more confident that their job-crafting efforts will be well received; those who don't feel this strong bond often feel mistreated and give up the project of crafting their work.

Similarly, companies also need to grant workers flexibility to expand the scope or improve the process of their jobs. The outcome can be the evolution of the entire business in unexpected and often creative ways.

Not all super-qualified workers will be inspired to re-craft their tasks. When the gulf between skills and task is extreme, Zhou writes, workers are bored and job crafting loses its juice as an incentive. For more moderately overqualified employees, however, their expertise should rocket their CVs to the top of the stack. For seasoned workers, the evidence shows, a job is not just a job. It's an adventure in finding ways to be excellent.

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This story originally ran on Rice Business Wisdom.

Jing Zhou is the Mary Gibbs Jones Professor of Management and Psychology in Organizational Behavior at the Jones Graduate School of Business of Rice University.

This Halloween, consider your office costume contest or luncheon social a productive part of the day. Socialization in the office has been linked to greater creativity, according to a Rice University researcher. Getty Images

Rice University research finds that office socializing can be a pathway to innovation and creativity

Houston voices

Innovation is a team sport. We know that creative workplaces represent a series of social networks, each brimming with useful ideas and expertise. And there is clearly a link between innovation within a firm and the colleagues and friends with whom employees hobnob off duty.

But how exactly does that alchemy happen? What's the relationship between creativity and the hive of direct and indirect contacts in an employee's cell phone?

A recent study by Jing Zhou of the business school, Giles Hirst of Australian National University, Daan Van Knippenberg of Erasmus University, Eric Quintane of the University of Los Andes and Cherrie Zhu of Monash University sheds new light on this. Mapping the social networks that underlie a creative workplace, the researchers showed that employee creativity rises when social networks are more diverse.

The researchers started with the premise that direct links in a network are offshoots of larger networks. The more diverse these indirect networks are, the researchers found, the more likely that innovative concepts will appear in a company's intellectual landscape.

The most efficient resources for gathering novel perspectives are networks made up of two-step "non-redundant ties"—that is, people you may not interact with directly, but with whom your direct ties do interact. These contacts are effectively the raw material employees use to come up with new ideas and ways of working. But why are these indirect networks so important? They diversify the thinking of the group, Zhou and her colleagues argue. Because these networks include individuals who are not necessarily linked, they lower the chances of groupthink or stale ideas.

To test their hypothesis, the researchers looked at the social networks of a large, state-owned pharmacy corporation in the People's Republic of China. Examining 11 divisions, each with roughly 25 sales representatives, the team studied creativity among the sales representatives. Evenly divided between men and women, the representatives were, on average, 35 years of age with approximately 10 years' of experience. Some had developed networks so large that they reached beyond the corporation's geographic territory.

The representatives' creativity manifested itself in a range of forms: new ways to promote products, strategies to cross-sell products, ideas for connecting with hard-to-access sales targets and plans for boosting client sales. The ideas included making products more visible in retail outlets and personalizing product launches to push customers to specific distributors. Because this kind of inventiveness is critical to gaining an edge, it's one of the most important tools in pharmaceutical marketing.

The researchers devised a matrix that matched sales metrics and managers' creativity rankings to the types of social networks the representatives had. The map showed clearly that a two-step, indirect network with few redundancies correlated to individual creativity. When networks were further removed than this, employee creativity was unchanged.

The implication: Firms should attend closely to the kind of social networks their workers cultivate. Not only that, it's possible to teach employees how to design networks for maximum efficiency. Persuading employees to make that effort might be another matter. Luckily, possible incentives abound, from bonuses to the satisfactions of a varied network to the simple pleasure of a more ample expense account. Executives just need to get creative in making their case.

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This story originally ran on Rice Business Wisdom.

Jing Zhou is the Mary Gibbs Jones Professor of Management and Psychology in Organizational Behavior at the Jones Graduate School of Business of Rice University.

New ideas can be crucially important to businesses, driving innovation and preventing stagnation. Recognizing those ideas, though, isn't always easy. Getty Images

Rice University research determines the best way to promote innovation in the workplace

Houston Voices

Whenever the late surgeon Michael DeBakey opened a human chest, he drew on a lifetime of resources: the conviction that heart surgery could and should be vastly improved, the skill to venture beyond medicine's known horizons and the vision to recognize new ideas in everyone around him, no matter how little formal training they had.

Appreciating new ideas is the heartbeat of business as well as medicine. But innovation is surprisingly hard to recognize. In a pioneering 2017 article, Rice Business Professor Jing Zhou and her colleagues published their findings on the first-ever study of the traits and environments that allow leaders to recognize new ideas.

Recent decades have produced a surge of research looking at how and when employees generate fresh ideas. But almost nothing has been written on another crucial part of workplace creativity: a leader's ability to appreciate new thinking when she sees it.

Novelty, after all, is what drives company differentiation and competitiveness. Work that springs from new concepts sparks more investigation than work based on worn, already established thought. Companies invest millions to recruit and pay star creatives.

Yet not every leader can spot a fresh idea, and not every workplace brings out that kind of discernment. In four separate studies, Zhou and her coauthors examined exactly what it takes to see a glittering new idea wherever it appears. Their work sets the stage for an entirely new field of future research.

First, though, the team had to define their key terms. "Novelty recognition" is the ability to spot a new idea when someone else presents it. "Promotion focus," previous research has shown, is a comfort level with new experiences that evokes feelings of adventure and excitement. "Prevention focus" is the opposite trait: the tendency to associate new ideas with danger, and respond to them with caution.

But does having "promotion focus" as opposed to "prevention focus" color the ability to see novelty? To find out, Zhou's team came up with an ingenious test, artificially inducing these two perspectives through a series of exercises. First, they told 92 undergraduate participants that they would be asked to perform a set of unrelated tasks. Then the subjects guided a fictional mouse through two pencil and paper maze exercises.

While one exercise showed a piece of cheese awaiting the mouse at the end of the maze (the promise of a reward), the other maze depicted a menacing owl nearby (motivation to flee).

Once the participants had traced their way through the mazes with pencils, they were asked to rate the novelty of 33 pictures – nine drawings of space aliens and 24 unrelated images. The students who were prepped to feel an adventurous promotion focus by seeking a reward were much better at spotting the new or different details among these images than the students who'd been cued to have a prevention focus by fleeing a threat.

The conclusion: a promotion focus really does create a mental lens through which new ideas are more visible.

Zhou's team followed this study with three additional studies, including one that surveyed 44 human resource managers from a variety of companies. For this study, independent coders rated the mission statements of each firm, assessing their cultures as "innovative" or "not innovative." The HR managers then evaluated a set of written practices – three that had been in use for years, and three new ones that relied on recent technology. The managers from the innovative companies were much better at rating the new HR practices for novelty and creativity. To recognize novelty, in other words, both interior and external environments make a difference.

The implications of the research are groundbreaking. The first ever done on this subject, it opens up a completely new research field with profound questions. Can promotion focus be created? How much of this trait is genetic, and how much based on natural temperament, culture, environment and life experience? Should promotion focus be cultivated in education? If so, what would be the impact? After all, there are important uses for prevention focus, such as corporate security and compliance. Meanwhile, how can workplaces be organized to bring out the best in both kinds of focus?

Leaders eager to put Zhou's findings to use right away, meanwhile, might look to the real-world model of Michael DeBakey. Practice viewing new ideas as adventures, seek workplaces that actively push innovation and, above all, cultivate the view that every coworker, high or low, is a potential source of glittering new ideas.

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This story originally ran on Rice Business Wisdom.

Jing Zhou is the Mary Gibbs Jones Professor of Management and Psychology in Organizational Behavior at the Jones Graduate School of Business of Rice University.

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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.

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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.”

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This story originally appeared on EnergyCapitalHTX.com.

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