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Home Science & Tech

International Advanced Research Center for Powder Metallurgy and New Materials(ARCI)

December 18, 2020
in Science & Tech
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International Advanced Research Center for Powder Metallurgy and New Materials(ARCI)
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ARCI and IIT-Hyderabad Scientists develop high-performance hybrid supercapacitors with novel electrode material

Key highlights 

  • Scientists have developed a low-cost supercapacitor device with excellent capacitive retention with a novel electrode material they have synthesized, which can pave the way for the next generation high power-high energy storage devices.
  • Scientists at ARCI in collaboration with IIT Hyderabad have developed a facile, scalable, and cost-effective electrochemical route to synthesize electrodes made of Nickel cobaltite (NiCo2O4) containing nanosheet structures with incorporated oxygen vacancies as an active material, for hybrid supercapacitors. 
  • These electrodes have been found to have excellent electrochemical performance.
  • Such hybrid supercapacitors combine the features of both conventional double layer supercapacitors and batteries and act as high power-high energy storage devices. 
  • However, it remains challenging to design pseudocapacitor devices with redox metal oxide (MO) materials with high porosity, which exhibit high capacitance and good cycle life. 
  • It is desirable to amend the intrinsic properties of the synthesized MO to enhance its conductivity, stability, and electrochemical activity.
  • Scientists at ARCI and IIT-H addressed these challenges and were successful in synthesizing NiCo2O4 nanostructured electrodes by a novel electrodeposition route. 
  • They also introduced an optimum number of oxygen vacancies by an environmentally benign chemical reduction process to make up for an active, positive electrode material for hybrid supercapacitor, as reported in their recent publication in the journal “Batteries &Supercaps”. 
  • This could be an effective alternative to the existing carbon-based electrodes for supercapacitors to achieve high energy density.
  • An asymmetric supercapacitor device further fabricated by the research team, using porous carbon and NiCo2O4 electrodes exhibited excellent capacity retention and stability. 
  • The device could power an LED lamp and a DC fan

Importance of supercapacitors

  • Supercapacitors have gained considerable attention due to their high power density, long cycle life, and excellent capacity retention compared to their battery counterparts. 
  • Supercapacitors with high capacitance and excellent capacitive retention developed from low-cost fabrication techniques are the need of the hour, considering their potential utility in the commercial market. 

About the International Advanced Research Center for Powder Metallurgy and New Materials (ARCI)

International Advanced Research Centre for Powder Metallurgy and New Materials (ARCI) established in the year 1997, is an Autonomous Research and Development Centre of Department of Science and Technology (DST), Government of India with main campus at Hyderabad and with operations in Chennai and Gurgaon.

ARCI’s mandate is

  • Development of High Performance Materials and Processes for Niche Markets
  • Demonstration of Technologies at Prototype / pilot scale
  • Transfer of Technology to Indian Industry
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Source: PIB & DST
Tags: Prelims

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