Long-term, high-rate lithium storage capabilities of TiO2 nanostructured electrodes using 3D self-supported indium tin oxide conducting nanowire arrays

• DOI: 10.1039/c0ee00804d
• Publication Date: 2011-03-18T15:30:22Z
• Authors: Kyung-Soo Park; Jin-Gu Kang; Young-Jin Choi; Sungjun Lee; Dong-Wan Kim; Jae-Gwan Park
• Keywords: 02 engineering and technology; 0210 nano-technology; 7. Clean energy

Core/shell, indium tin oxide (ITO)/TiO2 hybrid nanostructured electrodes for high-power lithium ion rechargeable batteries have been synthesized via a thermal evaporation method followed by pulsed laser deposition (PLD). Lithium-active TiO2 nanoparticles were uniformly assembled onto high-conductivity ITO nanowire arrays that were directly grown on metallic current collectors. This configuration resulted in superior rate capabilities and long-term cycle life. Such high electrochemical performances result from the unique 3 dimensional (3D) geometrical features of nanoarchitectured electrodes, which enable efficient electronic pathways upon prolonged cycling.