Graphene material for energy storage

Current batteries have three main disadvantages: they can take hours to charge, they have a limited lifespan for charging and discharging, and they’re bad for the environment, therefore requiring special, expensive disposal processes. In CTAM, we develop supercapacitor based on graphene materials, which charges extremely fast, can be charged and discharged millions of times, and is environmentally friendly. In addition, the energy density of graphene supercapacitors is much larger than current supercapacitors based on activated carbon in the market and approaches the energy density of the Nobel prize winning lithium ion battery. 

Porous graphene electrode

High performance graphene supercapacitor

References

  • Capacitors, electrodes, reduced graphene oxide and methods and apparatuses of the manufacture, WO/2018/039710, PCT/AU2017/050916
  • Process for preparing Porous Graphene Based Films, WO/2018/039715, PCT/AU2017/050921
  • Zhang, H., et al., Ultrahigh heating rate induced micro-explosive production of graphene for energy storage. Journal of Power Sources, 2019. 442: p. 227224.