Production of a compound of formula LiMPO 4 (where M is a metal of the first transition series) comprises producing a precursor mixture containing at least one Li +> source, at least one M +> source and at least one PO 4 3-> source to obtain a precipitate ...

The present invention relates to a method for removing a particulate contaminant material from a particulate mixed lithium metal phosphate material, comprising the steps of providing a particulate mixed lithium metal phosphate material, including a particu...