Synthesis and Characterization of High Capacity LiFeBO3
The LiFeBO3 samples were synthesized by a simple solid state reaction assisted by high energy ball milling .The refined XRD pattern is shown in Figure 1. The particle size of the material is ranging from 40 – 250 nm. Figure 2 is showing the charge-discharge voltage profile with reversible capacity of around 176 mAhg-1 at C/20 rate within 1,5-4,5V involving Fe3+/2+ redox potential of 2.8 V vs Li0/Li+. Figure 3 is showing the cycling stability and a c-rate test. In addition to that ex-situ characterization of charged and charged-discharged state LiFeBO3 with TEM, XRD and Mössbauer measurements have been performed and will be presented and discussed.
1 A. K. Padhi, K. S. Nanjundaswamy, J. B. Goodenough and goodenough, J. Electrochem. Soc., 1997, 144, 1188–1194.