TiO2 (B) has been investigated as a possible candidate to replace Li4Ti5O12 as a negative electrode for Li-ion battery. The starting compound was synthesized by a simple solid state reaction followed by hydrolysis. Long term stability of the TiO2 (B) electrode can be obtained by limiting lithium intercalation between 0.25 and 0.35 Li+ per unit formula. High cycling rates (up to 24C) have been used without noticeable degradation of the electrode. A non-aqueous hybrid energy storage device using TiO2 (B) as the negative electrode and activated carbon as the positive was assembled. The maximum hybrid cell voltage can be set between 2.75V and 3.5V. The cells exhibit energy densities between 45Wkg−1 and 80Wkg−1 with power densities in the range 240–420Wkg−1 which is compatible with a fast charging/discharging storage device, intermediate between electrochemical double layer capacitor and Li-ion batteries.