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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

Access to the Bloemfontein Campus
2015-04-02

Access Control Made Easy

The first phase of access control at the University of the Free State (UFS) was implemented in August 2014. The aim of this initiative is to tighten security measures on the Bloemfontein Campus.
 
Since November 2014, access control has been implemented at all five gates on the Bloemfontein Campus. These are:

  • The Main gate in Nelson Mandela Drive (Gate 1)
  • The gate in DF Malherbe Drive (Gate 5)
  • The gate in Wynand Mouton Drive (Gate 3) 
  • The gate in Furstenburg Street (Gate 4)
  • The gate in Badenhorst Street (Gate 2)

Here is some useful information about the access control system:

1. Remember your access card when you enter the campus

Dual-function cards (with distance reader compatibility) will make your movement through the gates more convenient. The university’s access system works automatically with remote or swipe action. Please make sure that you drive close to the reader or, better still, get the dual-frequency card to manage the distance between your vehicle and the remote card reader.

As of 23 March 2015, the extra security staff, who have been assisting at the gates since the implementation of access control on the Bloemfontein Campus, are no longer manning the card readers at the gates. Therefore, persons without cards will be able to enter the campus only at the one gate in DF Malherbe Drive where the Visitors Centre is situated. They will be referred to the Visitors Centre, where a day visitor’s card will be issued to them. You will need to produce a formal identification document (e.g. ID book, driver's licence).

Security will continue their normal duties at the guardhouses for the various gates on the campus.

2. Where do I get an access card?

You can apply at the university’s Visitors Centre front desk by producing your positive identification (ID book/passport/driver’s licence) and proof of payment for your access card.

You will then be directed to the Thakaneng Bridge where you will be able to collect your access card.

  • Go to the Cashier on the Thakaneng Bridge and pay your R65 for the dual-frequency card
  • Take your receipt, together with your existing card (if you have one), to the Card Division on the Thakaneng Bridge (next to Mellins Optometrists)
  • A new photo will be taken of you at the Card Office for your new card. Your new card will then be issued immediately.

Currently, there is a sufficient stock of the dual-frequency cards available at the Card Division on the Thakaneng Bridge.
 
Alternatively, you can apply online for your access card: http://apps.ufs.ac.za/cardapplication/application.aspx

Make sure you have the following documents ready to attach when completing the online form:

  • Copy of positive identification: ID/Driver's Licence/Passport
  • Signed declaration (http://supportservices.ufs.ac.za/dl/Userfiles/Documents/00007/4668_eng.pdf) by your service provider/employer (if you are a service provider) or a letter of confirmation from your spouse/partner/relative/coach/relevant UFS staff member or student in cases where you have to visit, pick-up or drop off your spouse/partner/relative frequently on the UFS Bloemfontein Campus.

Cost: R65 for a long-term card and free of charge for short-term visits and conference delegates. Pay at the Cashier on the Thakaneng Bridge or at Absa Bank, Account Number: 1 570 8500 71, Ref: 1 413 07670 0198.

3. Cutoff Date: 7 April 2015

After 7 April 2015, no pedestrian or motorist will be able to enter the campus without a valid access card. Persons without access cards will have to enter the campus at the gate in DF Malherbe Drive where the Visitors Centre is situated. You will then be referred to the Visitors Centre where you will have to apply for a day visitor’s card. It is important to note that no one will be able to enter the campus at the Visitors Centre without a formal identification document (e.g. ID book, driver's licence).

4. Dual-frequency card simplifies access to the campus

It is important to have your card ready on entering the campus.

This card will simplify access to the campus considerably, as the card reader will read the card when it is held in a vertical position at the driver’s side window in the direction of the distance reader. Please do not place the card on the dashboard. There is an antenna wire in the card. If the card is placed on the dashboard, you are not exposing the card surface to the reader, and that might influence the antenna’s response to the reader.

Remember, the distance between the reader and the boom is only a few metres.  If you approach the reader at a ’high’ speed, you are not allowing the system to identify your card, match it to the entry in the database, check if you are ‘legal’, and then send a signal to open the boom. 

All five gates are equipped with distance readers. Within the next three weeks, two extra distance readers will also be installed at the Main Gate in Nelson Mandela Drive.
 
Please note that the dual-frequency card is needed only when you enter the campus with a vehicle and you want to activate the distance reader. All the older cards will continue to work at the tag readers. 

5. Use alternative gates

At times, some of the gates carry more traffic than others, especially with the peak morning and afternoon traffic. Gates with less traffic include:

  • The gate in Badenhorst Street
  • The gate in DF Malherbe Drive
  • The gate in Nelson Mandela Drive

You are welcome to make use of one of these alternative gates.

6. Pedestrians

No pedestrian will be able to enter the Bloemfontein Campus without a valid access card. If you have left your card at home or have lost it, you should enter the campus at the gate in DF Malherbe Drive where the Visitors Centre is situated. You will be referred to the Visitors Centre where you can apply for a day visitor’s card. You will still need to produce a formal identification document (e.g. ID book, driver's licence).

7. More information

Email: visitorscentre@ufs.ac.za
Visitors Centre front desk: Tel: +27 51 401 7766 (Mondays-Fridays 07:45-16:30)
Card Division: Tel: +27 51 401 2799 (Mondays-Fridays 07:45-16:30)
Protection Services duty room: +27 51 401 2634 (24 hours)

 

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