Two SDSU engineering researchers are using biochar, an inexpensive carbon-rich material and a new method of creating the porous surface needed to capture electricity to reduce the cost of supercapacitors.
The ability to absorb and discharge energy quickly make supercapacitors an integral part of energy harvesting systems, however, supercapacitors are expensive. About half the materials cost comes from the use of activated carbon to coat the electrodes, according to Materials Today. Supercapacitor-grade activated carbon can cost $15 per kilogram.
Recent Comments