Fig. 1. (a) TEM and (b) HRTEM images of the Co/C NPs. (c) GCD curves of the Co/C NPs anode at a current density of 0.1 A g−1 between 0.01–3.0 V (vs. Li/Li+). (d) In situ XRD patterns of Co/C NPs anode for the first discharge and charge process. (e) Enlarged view of the diffraction peak from metallic Co in in situ XRD patterns.
