All-Electronic Charge Storage Devices with Large Energy Density and Small Leak Currents
Technical Report,01 Jun 2015,31 May 2018
Univ of Illinois Urbana United States
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Electric capacitors are commonly used in electronic circuits for the short-term storage of small amounts of energy. It is desirable, however, to use capacitors to store much larger energy amounts to replace rechargeable batteries. Thus, we have developed, fabricated, and tested graphene nanocapacitors. The results indicate that such nanocapacitors can store an increased amount of energy because of the volume charge, can function in a wide temperature interval, have corresponding energy density that is 10 to 100 times larger than the energy density of a common electrolytic capacitor, and can store a charge in the dielectric layer equal to or in excess of the amount stored on the capacitor plates.
- Electrical and Electronic Equipment