In this work the electrochemical characterization of V2O5 electrodes, prepared using polyacrylic acid (PAA) as binder, is presented. The obtained electrodes display stable high capacity values (250 mAh g-1) when cycled at low rates (44 mA g-1), and a reversible capacity of 90 mAh g-1 is obtained at high specific current (3A g-1). The PAA-based electrodes possess an excellent cycling ability with a capacity retention of 94 % after 100 cycles. The present study demonstrate the possibility to overcome the dramatic capacity fading of V2O5 by a simple approach, permitting to obtain electrochemical performance similar to those of more complicated nano-architectures via the use of a greener electrode manufacturing process.
V2O5 electrodes with extended cycling ability and improved rate performance using polyacrylic acid as binder
MARONI, FABIO;NOBILI, Francesco;
2014
Abstract
In this work the electrochemical characterization of V2O5 electrodes, prepared using polyacrylic acid (PAA) as binder, is presented. The obtained electrodes display stable high capacity values (250 mAh g-1) when cycled at low rates (44 mA g-1), and a reversible capacity of 90 mAh g-1 is obtained at high specific current (3A g-1). The PAA-based electrodes possess an excellent cycling ability with a capacity retention of 94 % after 100 cycles. The present study demonstrate the possibility to overcome the dramatic capacity fading of V2O5 by a simple approach, permitting to obtain electrochemical performance similar to those of more complicated nano-architectures via the use of a greener electrode manufacturing process.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
