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Título

The Organic-Inorganic Polyaniline/V2O5 System. Application as a High-Capacity Hybrid Cathode for Rechargeable Lithium Batteries

AutorLira-Cantú, Mónica ; Gómez-Romero, P. ; Gómez-Romero, P.
Palabras claveRechargeable Lithium Batteries
High-Capacity Hybrid Cathode
Fecha de publicación1999
EditorElectrochemical Society
CitaciónJournal of The Electrochemical Society 146(6): 2029-2033 (1999)
ResumenThe application of a hybrid polyaniline/V2O5 cathode material in reversible lithium electrochemical cells is reported. We have studied the influence of synthesis conditions and subsequent treatments of this hybrid electrode under oxygen in order to optimize its performance as a lithium-insertion cathode. The temperature and duration of this treatment are key parameters in determining the final specific charge of the cathode. The optimal material yielded a specific charge as high as 302 Ah/kg measured at a low discharge rate (C/48) corresponding to the insertion of 2.72 lithium ions per formula unit (C6H4N)0.6V2O5·0.3H2O). Higher scan rates of C/12 lead to specific capacities of 200 Ah/kg. The thermal and electrochemical stability of the hybrid electrode, especially in relation to the decomposition of the organic polymer and its effect on battery performance and cyclability, are also discussed. ©1999 The Electrochemical Society. All rights reserved.
Versión del editorhttp://dx.doi.org/10.1149/1.1391886
URIhttp://hdl.handle.net/10261/15492
DOI10.1149/1.1391886
ISSN0013-4651
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