title: X-ray absorption spectroscopic study of LiCoO2 as the negative electrode of lithium-ion batteries.
abstract: Lithium cobalt oxide (LiCoO(2)) particles are modified using rotor blade grinding and re-annealing and used as the active electrode material versus lithium in the 3-0 V potential interval, in which a maximum capacity of 903 mA h g(-1) is achieved. X-ray absorption near edge structure spectra reveal the complete reduction of Co(3+) to Co metal at 0 V. Cell recharge leads to an incomplete reoxidation of cobalt. A maximum reversible capacity of 812 mA h g(-1) is obtained, although a poor capacity retention upon prolonged cycling may limit its application.
authors.affiliation: University of Kent, Centre for Materials Research, Canterbury, Kent CT2 7NR, UK.
authors.forename: Alan V
authors.initials: AV
authors.lastname: Chadwick
authors.forename: Shelley L P
authors.initials: SL
authors.lastname: Savin
authors.forename: Ricardo
authors.initials: R
authors.lastname: Alcántara
authors.forename: Diego
authors.initials: D
authors.lastname: Fernández Lisbona
authors.forename: Pedro
authors.initials: P
authors.lastname: Lavela
authors.forename: Gregorio F
authors.initials: GF
authors.lastname: Ortiz
authors.forename: José L
authors.initials: JL
authors.lastname: Tirado