Nonaqueous lithium-ion capacitors with high energy densities using trigol-reduced graphene oxide nanosheets as cathode-active material

Vanchiappan Aravindan; Dattakumar Mhamane; Wong Chui Ling; Satishchandra Ogale; Srinivasan Madhavi

doi:10.1002/cssc.201300465

Nonaqueous lithium-ion capacitors with high energy densities using trigol-reduced graphene oxide nanosheets as cathode-active material

ChemSusChem. 2013 Dec;6(12):2240-4. doi: 10.1002/cssc.201300465. Epub 2013 Aug 12.

Authors

Vanchiappan Aravindan¹, Dattakumar Mhamane, Wong Chui Ling, Satishchandra Ogale, Srinivasan Madhavi

Affiliation

¹ Energy Research Institute @ NTU (ERI@N), Nanyang Technological University, Research Techno Plaza, 50 Nanyang Drive, 637553 (Singapore). [email protected].

PMID: 23939711
DOI: 10.1002/cssc.201300465

Abstract

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.

Keywords: capacitors; cathodes; energy storage; graphene; lithium.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Electric Power Supplies*
Electrodes
Graphite / chemistry*
Lithium / chemistry*
Nanostructures / chemistry*
Polyethylene Glycols / chemistry

Substances

triethylene glycol
Polyethylene Glycols
Graphite
Lithium