한국전기화학회

Vol.16, No.2, May 2013

TiO2 Branched Nanostructure Anode Material Prepared by Seeding Method for High-performance Lithium Ion Batteries: JKES Vol.16, No.2, pp.81-84, May 2013; DOI : 10.5229/JKES.2013.16.2.81

Biao Han1, Si-Jin Kim1, Bo-Mi Hwang1, Eui-Tak Hwang1, Han Chul Park1, Mun-Hyun Koh2, and Kyung-Won Park1,*

1Department of Chemical Engineering, Soongsil University, Seoul 156-743, Korea 2College of Law, Soongsil University, Seoul 156-743, Korea

We demonstrate rutile TiO2 branched nanostructure (TiO2-BN) electrodes synthesized by seeding method for enhanced lithium intercalation properties. The morphology and crystalline nature of the TiO2-BN were clearly observed by field-emission transmission electron microscopy and fast Fourier transform pattern. The TiO2-BN electrodes showed excellent capacity and high rate performance. The improved lithium-ion intercalation properties of the TiO2- BN may be attributed to relatively large specific surface area and short transport distance of the branched nanostructure.

Keyword : Branched nanostructure, Lithium ion batteris, Rutile, TiO2

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JKES

Vol.16, No.2, May 2013