IIT-R develops ‘first of its kind’ supercapacitor for energy storage

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Roorkee: Researchers from IIT-Roorkee have claimed to have developed a thin film-based flexible supercapacitor (SC) using nanostructured materials for large-scale energy storage, compared to conventional SCs. Supercapacitors are a kind of electrochemical energy storage systems with large power density and specific capacitance. These systems can efficiently release high-density energy in a relatively short time. “The fabricated device can be used in a variety of applications, from wearable devices such as smart wristwatches to medical sensors,” said one of the researchers. The researchers said they used “nickel nitride doped with carbon” in making thin-film supercapacitor electrodes. . They claimed that this kind of development in supercapacitors has taken place for the first time in the country. “Supercapacitors fabricated using our sputtering technique exhibit a remarkable operating voltage window of 1.6 V and excellent stability, maintaining capacitance even after 90%. 20,000 charge-discharge cycles. In conventional supercapacitors, this remains less than 80%,” Ramesh Chandra, professor of nanotechnology at the institute, told TOI. A peer-reviewed international journal – ACS Nano Letters – published the study in its recent edition.

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