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Article Dans Une Revue physica status solidi (a) Année : 2006

Magnetic studies of the carbothermal effect on LiFePO4

A Ait-Salah
  • Fonction : Auteur
K Zaghib
  • Fonction : Auteur
A Mauger

Résumé

The effect of carbon coating on the properties of LiFePO4 particles is studied from magnetic measurements. Magnetization experiments are an excellent tool to detect very low concentrations of iron-based impurities (< 1 ppm) which are poisoning the phospho-olivine used as positive electrode mate- rial in rechargeable Li-ion batteries. The results indicate that I addition of 5% carbon withdraws traces of the Fe(III) phase such as Fe2P and/or Fe2O3. This carbothermal effect appears to be beneficial for long-term application of LiFePO4 materials in Li-ion batteries. (c) 2006 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Dates et versions

hal-01293164 , version 1 (24-03-2016)

Identifiants

Citer

A Ait-Salah, K Zaghib, A Mauger, François Gendron, Christian Julien. Magnetic studies of the carbothermal effect on LiFePO4. physica status solidi (a), 2006, 203 (1), pp.R1-R3. ⟨10.1002/pssa.200521452⟩. ⟨hal-01293164⟩
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