Cathodic electrode li-fe-f for rechargeable lithium batteries and lithium ion, prepared from aqueous solutions at room temperature.

摘要

Cathodic electrode Li-Fe-F for rechargeable lithium batteries and lithium ion batteries, prepared from aqueous solutions at room temperature.; cathodic electrode derivative fluorides iron Li-Fe-F for rechargeable lithium batteries and lithium ion batteries, consisting of the monoclinic polymorph fluoride composition Li_ {3} FeF_ {6}, designated as alpha-Li_ {3} FeF_ {6}, obtained by a chemical precipitation reaction in aqueous solution of a soluble salt of iron (III), a soluble lithium salt and hydrofluoric acid, at a temperature between ambient and 60 ° C, conditions under which the fluoride not comes into solution. This material, when activated by mechanical reduction of its particle size, offers similar to that of other fluorides iron currently used in this type of batteries, but with the important advantage of being manufactured on an industrial scale electrochemical qualities by process, which carried out in aqueous solution at room temperature is a significant reduction in energy cost and environmental impact.