抄録
Spherical C/Li4Ti5O12 anode powders were prepared by spray pyrolysis with aqueous solution. The particle characteristics of C/Li4Ti5O12 powders were determined by SEM, XRD and DTA-TG. C/Li4Ti5O12 anode powder had a spherical morphology with non aggregation and porous structure. The carbon content was around 13 wt%. XRD analysis revealed that the spinel phase was obtained by heating at 750 ℃ under N2 atmosphere. The discharge capacity of C/Li4Ti5O12 was 160 mAh/g at 1C. That of C/Li4Ti5O12 decreased to 90 mAh/g at 20 C. 96 % of initial discharge capacity was maintained at 1 C after 100 cycles. 85 % of it was maintained at 20 C after 300 cycles.
