title: High-rate performance of Ti(3+) self-doped TiO2 prepared by imidazole reduction for Li-ion batteries.
abstract: Ti(3+) self-doped TiO2 nanoparticles were prepared via a simple imidazole reduction process and developed as an anode material for Li-ion batteries. Introducing the Ti(3+)-state on TiO2 nanoparticles resulted in superior rate performances that the capacity retention of 88% at 50 C. The enhanced electrochemical performances were attributed to the resulting lower internal resistance and improved electronic conductivity, based on galvanostatic intermittent titration technique and electrochemical impedance spectroscopy analyses.
authors.affiliation: Advanced Materials Division, Korea Research Institute of Chemical Technology, 141 Gajeongro, Yuseong, Daejeon, Korea. Department of Material Science and Engineering, Hanyang University, Seongdong-gu, Seoul, Korea.
authors.forename: Dong-Il
authors.initials: DI
authors.lastname: Seok
authors.forename: Mihye
authors.initials: M
authors.lastname: Wu
authors.forename: Kwang Bo
authors.initials: KB
authors.lastname: Shim
authors.forename: Yongku
authors.initials: Y
authors.lastname: Kang
authors.forename: Ha-Kyun
authors.initials: HK
authors.lastname: Jung