  The development of green and biodegradable electrical components is one of
the main fronts of research to overcome the growing ecological problem related
to the issue of electronic waste. At the same time, such devices are highly
desirable in biomedical applications such as integrated bio-electronics, for
which biocompatibility is also required. Supercapacitors for storage of
electrochemical energy, designed only with bio-degradable organic matter would
contemplate both aspects, that is, they would be ecologically harmless after
their service lifetime and would be an important component for applications in
biomedical engineering. By means of atomistic simulations of molecular dynamics
we propose a supercapacitor whose electrodes are formed exclusively by
self-organizing peptides and whose electrolyte is a green amino acid ionic
liquid. Our results indicate that this supercapacitor has a high potential for
energy storage with superior performance than conventional supercapacitors. In
particular its capacity to store energy was estimated to be almost 20 times
greater than an analogue one of planar metallic electrodes.
