Hybrid Supercapacitor Electrode For Faster Battery Charging

While supercapacitors have been favoured for their rapid charge and discharge rate and longer cycle life, trade-offs in their large size and mass have had to be made to provide the same electric energy as batteries. Researchers from the S.N. Bose National Centre for Basic Sciences, India have developed supercapacitor electrodes to counter this, using a hybrid nickel oxide-iron oxide exterior shell and a conductive iron-nickel core.

With the use of nickel oxide and iron oxide, environmentally-friendly and readily available in the earth’s surface, these hybrid electrodes could mean much greener and cheaper supercapacitors in the future.

The electrode offers “superior electrochemical performance in terms of high ability to store electrical charge at 1415F/g, high current density of 2.5A/g, low resistance, high power density and long-term cycling stability”, notes the primary researcher for the technology Ashutosh K. Singh.

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