title: Structural and Electrical Properties of Lithium-Ion Rechargeable Battery Using the LiFePO4/Carbon Cathode Material.
abstract: LiFePO4/C composite powder as cathode material and graphite powder as anode material for Li-ion batteries were synthesized by using the sol-gel method. An electrochemical improvement of LiFePO4 materials has been achieved by adding polyvinyl alcohol as a carbon source into as-prepared materials. The samples were characterized by elemental analysis (EA), X-ray diffraction (XRD), and field emission scanning electron microscopy (FE-EM). The chemical composition of LiFePO4/C powders was in a good agreement with that of the starting solution. The capacity loss after 500 cycles of LiFePO4/C cell is 11.1% in room temperature. These superior electrochemical properties show that LiFePO4/C composite materials are promising candidates as cathode materials.
authors.forename: Young-Sung
authors.initials: YS
authors.lastname: Kim
authors.forename: Tae-Hoon
authors.initials: TH
authors.lastname: Jeoung
authors.forename: Sung-Pill
authors.initials: SP
authors.lastname: Nam
authors.forename: Seung-Hwan
authors.initials: SH
authors.lastname: Lee
authors.forename: Jea-Chul
authors.initials: JC
authors.lastname: Kim
authors.forename: Sung-Gap
authors.initials: SG
authors.lastname: Lee