635416.fig.003a
(a)
635416.fig.003b
(b)
635416.fig.003c
(c)
Figure 3: Electrochemical properties of Li4Ti5O12  heat treated under air or N2 ambient. (a) Discharge capacity of the two samples under various rates. (b) Capacity retentions of the two samples when performing full charge/discharge cycles at 6 C. (c) Capacity retentions of Li4Ti5O12  heat treated under N2 ambient when performing full charge/discharge cycles at 16.3 C.