08-06-2012: Scientists in Saudi Arabia have used a kitchen sponge as an electrode platform for supercapacitor devices. They made a MnO2–carbon nanotube–sponge supercapacitor electrode that demonstrated reasonably good electrochemical performance in both aqueous and organic electrolytes, they say.
They added that compared to aqueous electrolytes, the energy density of supercapacitors in 1M Et4NBF4 tripled and the value was improved six-fold when using 1M LiClO4 as the electrolyte. They also said that the cycling performance in organic electrolytes was inferior to aqueous electrolytes, but the devices in organic electrolytes retained a significant energy density advantage even after 10,000 cycles.
W Chen, R B Rakhi and H N Alshareef, J. Mater. Chem., 2012