Nanostructured negative electrodes based on titania for Li-ion microbatteries

This work reviews recent developments on Li-ion microbatteries. After a short literature overview, use of TiO2 as an alternative anode for Li-ion batteries and enhanced electrochemical performances of nanostructured titania electrodes is introduced. Principle and formation mechanism of self-organized TiO2 nanotubes by electrochemical anodization and electrochemical fabrication of metallic nanowires are discussed in detail. Electrochemical performance of negative electrodes for Li-ion microbatteries composed of self-organized TiO2 nanotubes and composite TiO2 nanotubes–oxide nanowires is presented.