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Crystalline FeSb 2 powder prepared by ceramic route is examined as negative electrodes for lithium-ion batteries. The complete reaction mechanism of FeSb 2 is investigated by 121 Sb and 57 Fe Mössbauer spectroscopy as well as magnetic measurements and the results are correlated with a previous in situ XRD characterization. On the first discharge the reaction with Li...
We report here the performance of FeSb 2 used as negative electrode for Li-ions batteries. A capacity of 400mAhg −1 and 3500mAhcm −3 can be retained after 10 cycles at a C/10 cycling rate. We studied in particular the electrochemical mechanism during the first discharge of the FeSb 2 /Li battery. Both Mössbauer spectroscopy ( 57 Fe and 121 Sb) and in...
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