Overview

Petcoke-based 1200 F supercapacitor device has been developed using high performance porous activated carbon electrodes indigenously, which will be commercially attractive for Electric Vehicles (EVs) industry. The supercapacitor device with the specifications of 1200 F, 2.7 V and 1.2 Wh has been fabricated successfully from petcoke derived carbon. Electrochemical testing reveals that the performance of indigenous supercapacitor device is on par with the performance of world-class commercial supercapacitors (1200F). 16 numbers of 1200 F indigenous supercapacitors were connected in serial to assemble the module with specifications of 75 F, 43 V and 19.2 Wh for E-Bicycle demonstration with the driving range of 1-2 km with commercial supercapacitor.

Key Features

  •  High capacitance >1200F supercapacitor developed for the first time in India
  • Novel Tab less welding technology adopted for the fabrication of high power supercapacitor
  • Specific capacitance, rate capability and cyclic stability at par with commercial carbon
  • Supercapacitor module of 43 V was made
  • Designed voltage balancing circuit to control the voltage during

Potential Applications

  • Automotive transport (E-rickshaw, electric bus, electric bicycles, electric cars) and drones
  • Consumer electronics (power tools, voltage stabiliser, grid power buffer, street lamps)
  • Energy recovery (trams, cranes, tractors)
  • Memory backup for static random-access memory (SRAM)

Status

  • Basic concepts and understanding of underlying scientific principles
  • Short listing possible applications
  • Research to prove technical feasibility for targeted application
  • Coupon level testing in stimulated conditions
  • Check repeatability/consistency at coupon level
  • Prototype testing in real-life conditions
  • Check repeatability/consistency at prototype level

 

  •     ranslational materials research - From laboratory to product: A 1200 F cylindrical supercapacitor from petroleum coke derived activated carbon sheets, Journal of Energy Storage 55 (2022) 10565.
  • Petroleum coke as an efficient single source for High Energy and High Power Li-ion Capacitors” Energy & Fuels, 35, 9010-9016, 2021.
  • A High-Energy Density Li-Ion Hybrid Capacitor Fabricated from Bio-Waste Derived Carbon Nanosheets