Asymmetric electrochemical double-layer carbon supercapacitors (AEDLCs) with N-methoxyethyl-N-methylpyrrolidinium bis(trifluoromethanesulfonyl)imide (PYR1(2O1)TFSI) ionic-liquid electrolyte can safely cycle above room temperature with maximum cell voltage as high as 3.7 V over several thousand cycles and are thus promising candidates for hybrid electric vehicle (HEV) applications. Here, we report the energy and power performance of the PYR1(2O1)TFSI-based AEDLCs in the -30 to 60°C temperature range evaluated by the conventional galvanostatic cycling and by the United States Advanced Battery Consortium and the U.S. Department of Energy (DOE) FreedomCAR benchmark protocols. The most outstanding finding is that the ionic-liquidbased supercapacitor meets the dynamic power and energy capability targets stated by DOE for power-assist HEVs.
M. Lazzari, F. Soavi, M. Mastragostino (2009). Dynamic Pulse Power and Energy of Ionic-Liquid-Based Supercapacitor for HEV Application. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 156, A661-A666 [10.1149/1.3139046].
Dynamic Pulse Power and Energy of Ionic-Liquid-Based Supercapacitor for HEV Application
SOAVI, FRANCESCA;MASTRAGOSTINO, MARINA
2009
Abstract
Asymmetric electrochemical double-layer carbon supercapacitors (AEDLCs) with N-methoxyethyl-N-methylpyrrolidinium bis(trifluoromethanesulfonyl)imide (PYR1(2O1)TFSI) ionic-liquid electrolyte can safely cycle above room temperature with maximum cell voltage as high as 3.7 V over several thousand cycles and are thus promising candidates for hybrid electric vehicle (HEV) applications. Here, we report the energy and power performance of the PYR1(2O1)TFSI-based AEDLCs in the -30 to 60°C temperature range evaluated by the conventional galvanostatic cycling and by the United States Advanced Battery Consortium and the U.S. Department of Energy (DOE) FreedomCAR benchmark protocols. The most outstanding finding is that the ionic-liquidbased supercapacitor meets the dynamic power and energy capability targets stated by DOE for power-assist HEVs.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
