title: Core-shell structured silicon nanoparticles@TiO2-x/carbon mesoporous microfiber composite as a safe and high-performance lithium-ion battery anode.
abstract: A core-shell structured Si nanoparticles@TiO2-x/C mesoporous microfiber composite has been synthesized by an electrospinning method. The core-shell composite exhibits high reversible capacity, excellent rate capability, and improved cycle performance as an anode material for Li-ion batteries. Furthermore, it shows remarkable suppression of exothermic behavior, which can prevent possible thermal runaway and safety problems of the cells. The improved electrochemical and thermal properties are ascribed to the mechanically, electrically, and thermally robust shell structure of the TiO2-x/C nanocomposite encapsulating the Si nanoparticles, which is suggested as a promising material architecture for a safe and reliable Si-based Li-ion battery of high energy density.
authors.affiliation: Advanced Batteries Research Center, Korea Electronics Technology Institute , Seongnam 463-816, Republic of Korea.
authors.forename: Goojin
authors.initials: G
authors.lastname: Jeong
authors.forename: Jae-Geun
authors.initials: JG
authors.lastname: Kim
authors.forename: Min-Sik
authors.initials: MS
authors.lastname: Park
authors.forename: Minsu
authors.initials: M
authors.lastname: Seo
authors.forename: Soo Min
authors.initials: SM
authors.lastname: Hwang
authors.forename: Young-Ugk
authors.initials: YU
authors.lastname: Kim
authors.forename: Young-Jun
authors.initials: YJ
authors.lastname: Kim
authors.forename: Jung Ho
authors.initials: JH
authors.lastname: Kim
authors.forename: Shi Xue
authors.initials: SX
authors.lastname: Dou