Soo-Gil Park1,*, Jeong-Jin Yang1, Jin-Woo Rho1, Hong-Il Kim2, and Hiroki Habazaki3
1Dept. of Engineering Chemistry, Chungbuk National University, 52 Naesudong-ro, Heungduk-gu, Cheong-ju 361-763, Korea
2PureEchem co. ltd., Chungbuk Cheongju, Korea
3Graduate School of Engineering, Hokkaido University, N13-W8, Sapporo 060-8628, Japan
The TiO2 nanotube/Ti electrode are used as an anode in thin-film lithium microbatteries
is known to have high oxidation-reduction potential of 1.8 V (vs. Li/Li+). It can prevent
from dendrite growth of lithium during charging. The TiO2 nanotube/Ti electrode was prepared
by anodizing at constant voltages for thin-film lithium microbatteries. The capacities of TiO2
nanotube/Ti anode prepared by anodizing at 10 V, 20 V and 30 V were observed to be
23.9 μAh cm?2, 43.1 μAh cm?2 and 74.0 μAh cm?2. We identified it was found that the capacity
of TiO2 nanotube/Ti increases with increasing anodizing voltage and the anatase structure of
TiO2 nanotube/Ti compared with amorphous structure has batter cycle performance than amorphous
TiO2 nanotube/Ti.
Keyword : TiO2, Nanotube, Micro-batteries, Anodizing