The behavior of a NaFePO4 cathode, obtained by electrochemical Li-Na exchange of LiFePO4 olivine, is characterized in a sodium battery. The NaFePO4 electrode here developed shows remarkable electrochemical properties in the sodium cell, such as long charge-discharge cycle life and high rate capability. X-ray diffraction analysis reveals that the NaFePO4 electrode keeps its original structure upon 50 charge-discharge cycles. The Na/NaFePO4 battery operates with a working voltage of 2.7 V and a stable capacity of 125 mAh g(-1) namely at 80% of the theoretical value. The results here reported demonstrate that the olivine NaFePO4 electrode is indeed a very promising positive electrode for the development of high performance, advanced sodium batteries. (C) 2012 Elsevier B.V. All rights reserved.

Reversible NaFePO4 electrode for sodium secondary batteries

HASSOUN, Jusef;
2012

Abstract

The behavior of a NaFePO4 cathode, obtained by electrochemical Li-Na exchange of LiFePO4 olivine, is characterized in a sodium battery. The NaFePO4 electrode here developed shows remarkable electrochemical properties in the sodium cell, such as long charge-discharge cycle life and high rate capability. X-ray diffraction analysis reveals that the NaFePO4 electrode keeps its original structure upon 50 charge-discharge cycles. The Na/NaFePO4 battery operates with a working voltage of 2.7 V and a stable capacity of 125 mAh g(-1) namely at 80% of the theoretical value. The results here reported demonstrate that the olivine NaFePO4 electrode is indeed a very promising positive electrode for the development of high performance, advanced sodium batteries. (C) 2012 Elsevier B.V. All rights reserved.
2012
Seung Min, Oh; Seung Taek, Myung; Hassoun, Jusef; Bruno, Scrosati; Yang Kook, Sun
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11392/2331176
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