Indian researchers at International Advanced Research Centre for Powder Metallurgy and New Materials have developed a new high-voltage supercapacitor

Indian researchers at International Advanced Research Centre for Powder Metallurgy and New Materials have developed a new high-voltage supercapacitor

¨     Indian researchers at International Advanced Research Centre for Powder Metallurgy and New Materials have developed a new high-voltage supercapacitor.

¨     The supercapacitor uses a porous graphene carbon nanocomposite electrode.

¨     It operates at 3.4 volts, exceeding the typical 2.5–3.0 volt range of commercial supercapacitors.

¨     The electrode material is designed to repel water and is highly compatible with organic electrolytes.

¨     This reduces electrolyte degradation at high voltages and the porous structure permits fast electrolyte penetration.

¨     Energy storage capacity is increased by about 33 percent and the device delivers very high-power output.

¨     Power density can reach up to 17,000 watts per kilogram.

¨     The supercapacitor retains about 96 percent performance after 15,000 charge–discharge cycles.

¨     The material is produced using a hydrothermal carbonization process, which uses 1,2-propanediol as a precursor.

¨     Production takes about 25 hours at 300 degrees Celsius and the production process is scalable for industrial manufacturing.

¨     The research has been published in the Chemical Engineering Journal.

¨     International Advanced Research Centre for Powder Metallurgy and New Materials is an autonomous institute under the Department of Science and Technology.