Hybrid supercapacitor offers NiMH energy density, charges much faster

Researchers at the Queensland University of Technology have added another hybrid supercapacitor design to the mix, promising the near-instant charge and discharge of a supercap with vastly improved energy storage on par with NiMH batteries.

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Tau.Neutrino said:

Hybrid supercapacitor offers NiMH energy density, charges much faster

Researchers at the Queensland University of Technology have added another hybrid supercapacitor design to the mix, promising the near-instant charge and discharge of a supercap with vastly improved energy storage on par with NiMH batteries.

more…

> In new research published in Advanced Materials in December, the QUT team describes a design that uses a capacitor-style titanium carbide-based negative electrode and a battery-style graphene-hybrid positive electrode. The result, says the team, is a hybrid capacitor with a power density (and thus charging capability) “about 10 times that of lithium batteries”, and an energy density “close to that of nickel metal hydride batteries.”

As you’ve probably figured, adding a supercapacitor to a battery doesn’t solve all the problems of energy density vs power density. You only6 have high power density when there is a small change in energy density.

Nonetheless, I find this intriguing.