The influence of TiO_2 nanostructure properties on the performance of TiO_2-based anodes in lithium ion battery applications

Authors: XIANG LIU, QIAN SUN, FANGZHOU LIU, ALEKSANDRA B. DJURISIC, ALAN MAN CHING NG, MAOHAI XIE, TOM WOOD, JUAN ANTONIO ZAPIEN, CHANGZHONG LIAO, KAIMING SHIH

Abstract: We investigated the properties of 7 different titanium dioxide nanostructures with different crystal structures (3 anatase, 2 rutile, and 2 mixed anatase--rutile phase). Nanoparticle samples and mesoporous sphere samples were investigated. Even for the same crystal structure, significant variations in performance were observed for anatase titania samples, while 2 rutile samples exhibited similar performance inferior to anatase-based anodes. Mixed-phase samples also exhibited lower specific capacity compared to the best performing anatase samples, and in this case a significant difference in performance was observed between nanoparticles and mesoporous spheres.

Keywords: Lithium ion battery, titanium dioxide

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