(Top left) The specific capacitances of several electrode materials. (Top right) Schematic diagram of ion transportation in a supercapacitor with and without the sponge. (Bottom left) Graph of the voltage and charge/discharge rates for single and tandem supercapacitors. (Bottom right) A three-unit cell is used to power a red LED. Credit: Moussa, et al. ©2015 IOP Publishing
Scanning electron microscope images of (a) a pure sponge, (b) sponge with graphene nanoplatelets, and (c) sponge with graphene nanoplatelets and PANi. Credit: Moussa, et al. ©2015 IOP Publishing
Battery & SUPERCapacitor Ping!.................
I guess this technology is “Sponge-worthy”.
The “holy grail”: a lightweight ultracapacitor, a few cubic feet in size, able to run an electric car several hundred miles and recharge in a few minutes.
One problem with ultracapacitors: propensity to instant discharge if possible. Safety is a huge issue when capable of dumping 100kW/h thru someone in a millisecond.
looks like a good idea, as farad it goes...
I can`t comment on this as I am super-incapacitated at the moment.
Why use an uncontrolled dip?
Imagine 3d printing 2 materials with exact tolerances in a spongy configuration scaled to meet the specific capacitance need with a single optimized design.