title: Electrically exploded silicon/carbon nanocomposite as anode material for lithium-ion batteries.
abstract: In this work, silicon (Si) containing carbon coated core-shell nanostructures were synthesized by electrical explosion of Si wires in ethanol solution followed by high energy mechanical milling (HEMM) process. Material characterization was carried-out using transmission electron microscopy (TEM), field-emission scanning electron microscopy (FESEM), energy dispersive X-ray spectroscopy (EDS), and X-ray diffraction (XRD) analysis. HEMM led to very fine and amorphous Si particles in the presence of carbon and inactive Silicon-Carbide (SiC) matrix. These Si based nanocomposites, obtained through electrical explosion followed by HEMM (milled sample), exhibited enhanced electrochemical performance than unmilled nanocomposites, when evaluated as anode material for lithium-ion batteries (LIBs). On completion of (the) 1st cycle, milled and unmilled sample(s) showed specific discharge capacities around 825 mAh/g and 717 mAh/g, respectively. Interestingly, the coulombic efficiencies of milled and unmilled samples were 98.5% and 97% after 60th cycle respectively. The enhanced electrochemical performance is attributed to fine and amorphous Si based nanocomposite obtained through HEMM process.
authors.forename: Umer
authors.initials: U
authors.lastname: Farooq
authors.forename: Jeong-Hee
authors.initials: JH
authors.lastname: Choi
authors.forename: Doohun
authors.initials: D
authors.lastname: Kim
authors.forename: Syed Atif
authors.initials: SA
authors.lastname: Pervez
authors.forename: Adnan
authors.initials: A
authors.lastname: Yaqub
authors.forename: Min-Ji
authors.initials: MJ
authors.lastname: Hwang
authors.forename: You-Jin
authors.initials: YJ
authors.lastname: Lee
authors.forename: Won-Jae
authors.initials: WJ
authors.lastname: Lee
authors.forename: Hae-Young
authors.initials: HY
authors.lastname: Choi
authors.forename: Sang-Hoon
authors.initials: SH
authors.lastname: Lee
authors.forename: Ji-Hyun
authors.initials: JH
authors.lastname: You
authors.forename: Chung-Wan
authors.initials: CW
authors.lastname: Ha
authors.forename: Chil-Hoon
authors.initials: CH
authors.lastname: Doh