A new type of 2 V rocking chair lithium battery with nanocrystalline TIO2 (anatase) as the negative electrode and LiCoO2 or LiN/0.5Co0.5O2 as the positive electrode has been studied. The electrolyte solution was 1M LIN(CF3SO2)(2) in ethylene carbonate + 1,2-dimethoxyethane. The TiO2/LiCoO2 and TiO2/LiNi0.5Co0.5O2 batteries delivered about 50 mAh/g (based on the total mass of active electrode materials) during galvanostatic charge/discharge at +/- 0.33 mA/cm(2). The latter battery showed a capacity drop of about 30% over 190 galvanostatic charge/discharge cycles.