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23 February 2024 | Story Leonie Bolleurs | Photo SUPPLIED
Tebogo Motsei
Tebogo Motsei, a PhD student in Physics at the UFS, has been awarded the prestigious CV Raman International Fellowship for African Researchers.

Imagine a supercapacitor/battery made right here in South Africa that could change the way we store energy for the better. A product that can store energy in real time, thus solving energy problems as they happen, which makes a huge difference especially during power outages. A product that is not just good for the environment – transitioning away from lithium-ion batteries – but that can also create jobs and boost the local economy.

What we are talking about is a type of technology known as a sodium-ion supercapacitor/battery, which is the focus of Tebogo Motsei’s research. This technology serves as a power source for lighting, power plants, cars, and phones. Motsei, a PhD student in the Department of Physics on the Qwaqwa Campus of the University of the Free State (UFS), explains that – unlike lithium batteries, which have undergone extensive research and are expensive to produce – they are conducting experimental work and characterisations to determine if sodium-ion supercapacitor/batteries can perform as well or even better, using more affordable and eco-friendly materials.

“Our results, inspired by the urgent need for improved energy storage solutions in South Africa amid its energy challenges, have been very promising. We have successfully developed a sodium-ion supercapacitor/battery that stores as much energy as a lithium-ion battery. Moreover, it was crafted from recycled materials, making it a more cost-effective and environmentally friendly option,” states Motsei, adding that their battery is unique, as no one else in the world has created anything quite like it, despite numerous attempts.

She is also pleased with this supercapacitor/battery’s ability to repair itself. Motsei explains, “Imagine if your toy could fix itself whenever it got broken – that's kind of what our sodium-ion supercapacitor/battery does!”

Motsei is part of a group of scientists in the Department of Physics at the UFS who are working on this research and who have published a scientific article on their work, titled Composite super-capacitor/Na-ion battery with self-healing Fe–Cr alloy electrodes. 

“We're proud of what we have accomplished,” she remarks.

Fellowship: a dream come true

Being part of this impactful research contributed to Motsei receiving the prestigious CV Raman International Fellowship for African Researchers (2023). The fellowship is for African researchers engaged in research at an African institution, providing opportunities for research collaboration in India. Motsei will be the only candidate from South Africa.

This award is merit-based. Motsei attributes her selection to factors such as her strong academic record, research accomplishments, and innovative approach to solving complex problems. She also believes her experience in research, collaboration, and publication reflects her potential to make meaningful contributions to the field during the fellowship period. 

Another key factor contributing to her selection for this fellowship is her skill in fabricating actual devices/prototypes. “The hands-on nature of this research, allowing me to create devices from scratch, has always been my passion. Making my first device – the ‘Magnetron Sputtering Unit’ – during my master’s studies, was a turning point. It made me realise that I had made the best decision ever by choosing this research field. I'm truly passionate about my work,” says Motsei. 

For her PhD studies, she is supervised by Prof Richard Ocaya, Associate Professor in the Department of Physics, and co-supervised by Dr Kamohelo Tshabalala, Senior Lecturer in the Department of Physics. Prof Ocaya, proud of Motsei’s achievements, believes that this fellowship not only serves as a great motivation for students – especially on the Qwaqwa Campus – but also highlights the global relevance of the UFS, particularly the Department of Physics.

Motsei says receiving this fellowship is a dream come true and a profound, life-changing moment for her. “I feel deeply honoured to be concluding this programme at the CSIR-Electrochemical Research Institute, the host institution in India, under the guidance of Prof Arul Manuel Stephan, whose invaluable assistance has been instrumental in my preparations.” Motsei also expressed her gratitude towards everyone who has supported her during this process, including Sudhir Kumar from the Indian Embassy in Pretoria.

“I am excited about how I can use this opportunity to make a difference. Whether it’s tackling significant global energy issues or finding new ways to solve everyday problems, I know this fellowship will give me the tools and support needed to make a real impact. Overall, I see this fellowship as a stepping stone to exciting new opportunities and adventures in the world of research,” she comments.

Making a meaningful impact

Motsei will be leaving for India on 23 February for a period of six months. She is excited about this new chapter in her research journey. “This fellowship will enhance my abilities as a scientist and leader in physics, providing me with essential skills, connections, and experience to make a meaningful impact in science and energy. I'm genuinely happy about this opportunity, which I thank God for.”

  • Sir Chandrasekhara Venkata Raman, after whom the fellowship is named, was a renowned Indian physicist who made great contributions to physics, winning many prizes and awards, including the 1930 Nobel Prize in Physics. He was known for his work in the field of light scattering and was the first Asian and non-European to receive a Nobel prize in any branch of science. 

News Archive

Juan Odendaal on his way to World Champs
2015-03-23

Juan Odendaal
Photo: BOOGS Photography, Andrew McFadden

UFS’s athletes with disabilities are currently excelling in cycling and athletics.

The UFS Para-cyclist, Juan Odendaal, will soon make his debut for South Africa at the 2015 Union Cyclist International (UCI) Para-cycling Track World Championships in Apeldoorn, The Netherlands, from 26-29 March 2015.

The Championship event will provide an excellent foundation for re-building the international competitiveness of South Africa’s Para-cycling track team in the build-up to Rio 2016. In a situation where the UCI has hosted relatively few international track competitions over the past three years, the 2015 World Championships will serve as a stepping-stone to the 2016 grand season, when it is expected that the country’s top riders will reach their peak competitive condition.

As the youngest member of the South African team, Odendaal will use the opportunity of competing in the individual time trial and team sprint events to build a platform for an international career will certainly span many years to come.

Another UFS student, Musa Simelane, are excelling and was chosen for the SA Wheelchair Rugby tean, known as the "Wheelboks". They will compete in the 2015 World Wheelchair Rugby Challenge in London in October and after that head to Japan to compete in the 2015 Asia Oceania Championships.

On a local level, earlier in March this year, other UFS athletes with disabilities also performed well on the athletics track.

Blind athlete and member of the Bloemfontein Campus Student Representative Council (SRC), Louzanne Coetzee, also had a good 1500m race in the beginning of March when she qualified easily for the World Championships, which will take place in Toronto, Canada, later this year. Coetzee and her guide, Rouxné Jacobs, set up a time of 5:45.86, which is well under the required standard of 6 minutes.

The other blind UFS athlete, Danie Breitenbach, alongside his guide Marius Wessels, broke his own national record for the 800m again on Friday 6 March 2015. In November 2014, Breitenbach’s record stood at 2:15.17. This record now stands at 2:13.57. Chances now are that Breitenbach will reach his goal of running the 800m under 2:10 at the Nedbank National Championship for the Physically Disabled at the end of March 2015.

The other Kovsie stars who will be participating at the Nedbank National Championship for the Physically Disabled are as follows:

Athletes:
• Dineo Mokhosoa
• Louzanne Coetzee
• Danie Breitenbach
• Juanré Jenkinson
• Diederich Kleynhans
• Jacques de Bruyn

Swimmer:
• Johann van Heerden

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