Guwahati, May 5: In a significant step toward cleaner, faster, and more affordable energy storage, researchers from Nagaland University, in collaboration with institutions in Karnataka, have created a new material that could revolutionise how we power our devices and electric vehicles.
The team’s work focuses on supercapacitors — cutting-edge energy storage devices that can charge rapidly and deliver energy in bursts. Unlike regular batteries, supercapacitors don’t take hours to charge and can last through many more charge cycles. However, the high cost of materials used in their electrodes has kept them from becoming widely used — until now.
The research team has developed a simple, low-cost method to produce a special kind of graphene, a super-thin and super-strong material, by adding chemical groups to it (called aminated graphene). Their process is faster, more energy-efficient, and works under moderate conditions, making it ideal for large-scale use.
“It’s one of the fastest methods available to produce this material, using a direct one-step process from bulk graphite,” said Suraj Kumar, a DST-INSPIRE Fellow at Nagaland University and the study’s lead author.
The material produced showed excellent energy performance in the lab, with a fivefold increase in energy density compared to older methods. It also retained 98% of its energy after 10,000 charge cycles, making it not only powerful but also durable.
The study has been granted an Indian patent and published in the international journal iScience (link). It is now ready for the next step: real-world applications and commercial development.
The research was led under the joint guidance of Prof. Dipak Sinha (Nagaland University) and Prof. Dinesh Rangappa (Visvesvaraya Technological University), with team members from Nagarjuna College of Engineering and Technology also contributing.
“We’ve created a material that charges fast, performs better, and can be made more cheaply,” said Prof. Sinha. “It could help make energy storage more sustainable and accessible for the future.”
This innovation aligns with India’s growing push toward green energy solutions, and could play a key role in powering everything from electric vehicles to renewable energy grids — faster, longer, and more affordably.
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