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EnglishIn 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.
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| Titolo: | V2O5 electrodes with extended cycling ability and improved rate performance using polyacrylic acid as binder |
| Autori: | |
| Data di pubblicazione: | 2014 |
| Rivista: | |
| 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. |
| Handle: | http://hdl.handle.net/11581/342985 |
| Appare nelle tipologie: | Articolo |
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