The all-solid-state Li-In/Li 4Ti 5O 12 cell using the 80Li 2S·20P 2S 5 (mol%) solid electrolyte was assembled to investigate rate performances. It was difficult to obtain the stable performance at the charge current density of 3.8 mA cm -2 in the all-solid-state cell. In order to improve the rate performance, the pulverized Li 4Ti 5O 12 particles were applied to the all-solid-state cell, which retained the reversible capacity of about 90 mAh g -1 at 3.8 mA cm -2. The 70Li 2S·27P 2S 5·3P 2O 5 glass-ceramic, which exhibits the higher lithium ion conductivity than the 80Li 2S·20P 2S 5 solid electrolyte, was also used. The Li-In/70Li 2S·27P 2S 5·3P 2O 5 glass-ceramic/pulverized Li 4Ti 5O 12 cell was charged at a current density higher than 3.8 mA cm -2 and showed the reversible capacity of about 30 mAh g -1 even at 10 mA cm -2 at room temperature.