Abstracts Book - IMRC 2018

• SA1-O022
ALL-CARBON SUPERCAPACITOR, FULLERENE-GRAFTED 3D
GRAPHENE AS ELECTRICAL ENERGY STORAGE MATERIAL
Maira R Ceron 1 , Tuan A. Pham 1 , Patrick Campbell 1 , Vedasri Vedharathinam 1 , Brandon Wood 1 ,
Juergen Biener 1 , Monika Biener 1
1
Lawrence Livrermore National Laboratory, Physical and Life Sciences, United States.
Supercapacitors have the potential to replace Li ion batteries as the nextgeneration
electrical energy storage technology in demanding applications due
to their high power density and excellent cycling stability. Graphene-based
supercapacitor electrodes are very attractive because they feature high surface
area, high electrical conductivity, and chemical inertness; however their
capacitance is limited by their low density of states at the Fermi level (ca. 1 e - per
100 C atoms). To overcome the current charge storage limitations of graphenebased
supercapacitors, researchers at Lawrence Livermore National Laboratory
have developed an all-carbon composite graphene/fullerene supercapacitor
combining the high charge storage capacitance of fullerenes (up to 6 e - per C60)
with the high electrical conductivity of 3D mesoporous graphene macroassemblies
(GMAs).
Acknowledgment:
Funding was provided by Lawrence Livermore National Laboratory Directed
Research and Development (LDRD) Grant 17-ERD-017. This work was performed
under the auspices of the U.S. Department of Energy by LLNL under Contract
DE-AC52-07NA27344. IM Release Number LLNL-ABS-746988.
Keywords: Supercapacitor, Fullerenes, Graphene Macro-assemblies
Presenting authors email: ceronhernand1@llnl.gov