Phospho-olivine as advanced cathode material for lithium batteries

I. Belharouak, Q. Yan, Y. K. Sun, K. Amine

Research output: Contribution to journalArticlepeer-review

Abstract

Nano-sized and micron-sized LiFePO4 electrode materials were prepared by a sol gel and coprecipitation reactions. An improvement of the cycling and rate performances in lithium cells was observed for the carbon coated LiFePO4 materials. The coating process uses a solid/gas-phase reaction which consists of decomposing propylene gas, as carbon source, inside a reactor containing olivine LiFePO4 materials. Optimized LiFePO4 electrode cells, cycled at RT between 3.0 and 4.3 V at a C/10 rate, do not show any sign of capacity fade during the first 50 cycles. Combination of the high volumetric energy density and low cost preparation method makes the micron-sized LiFePO4 olivine an attractive safe cathode for lithium-ion batteries.

Original languageEnglish
Pages (from-to)201-205
Number of pages5
JournalEurasian Chemico-Technological Journal
Volume12
Issue number3-4
DOIs
StatePublished - 2010
Externally publishedYes

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