Nonaqueous lithium-ion capacitors with high energy densities using trigol-reduced graphene oxide nanosheets as cathode-active material.
One HEC of a material: The use of trigol-reduced graphene oxide nanosheets as cathode material in hybrid lithium-ion electrochemical capacitors (Li-HECs) results in an energy density of 45 Wh kg(-1) ; much enhanced when compared to similar devices. The mass loading of the active materials is optimized, and the devices show good cycling performance. Li-HECs employing these materials outperform other supercapacitors, making them attractive for use in power sources.
Energy Research Institute @ NTU (ERI@N), Nanyang Technological University, Research Techno Plaza, 50 Nanyang Drive, 637553 (Singapore). aravind_van@yahoo.com.
Vanchiappan
V
Aravindan
Dattakumar
D
Mhamane
Wong Chui
WC
Ling
Satishchandra
S
Ogale
Srinivasan
S
Madhavi
D011211:Electric Power Supplies; D004566:Electrodes; D006108:Graphite / Q000737:chemistry*; D008094:Lithium / Q000737:chemistry*; D049329:Nanostructures / Q000737:chemistry*; D011092:Polyethylene Glycols / Q000737:chemistry
C028914:triethylene glycol; D011092:Polyethylene Glycols; D006108:Graphite; D008094:Lithium
capacitors; cathodes; energy storage; graphene; lithium