Other

Politecnico Di Torino

Rockwood Italia Spa

Bolton Manitoba S.p.a.

Daniela Fontana

Claudio Gerbaldi

Silvia Bodoardo

Nerino Penazzi

Giuseppina Meligrana

Francesca Di Lupo

Giulia Cecere

Cinzia Brignoli

Ilaria Villa

The present invention relates to a process for the production of LiFePOpowder, comprising the steps: a) providing an aqueous solution of an organic surfactant; b) providing an aqueous solution of an iron (II) salt and mixing said aqueous iron (II) salt solution with an aqueous solution of a phosphate, to provide a mixed iron (II) salt/phosphate solution having a stoichiometric ratio of Fe:phosphate of about 1:1; c) adding the mixed iron (II) salt/phosphate solution to the surfactant solution under constant stirring; d) providing an aqueous solution comprising a lithium salt, adding said aqueous solution comprising a lithium salt to said mixed iron (II) salt/phosphate solution to provide a mixture having a stoichiometric ratio of Fe:phosphate:lithium salt of about 1:1:3 and stirring the resulting mixture; e) heating the resulting mixture at 80-200&#xb0; C.; f) washing the resulting precipitate to remove excess surfactant, filtering and drying the precipitate; and g) heat treating the dried precipitate in an inert atmosphere by firing at 550-850&#xb0; C. for at least 2 hours, wherein a co-solvent is added during or after any one of steps (a) to (d).

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Turin, Italy

Daniela Fontana