| abstract |
The invention relates to optionally doped fluorosulphates. The fluorophosphates have a triclinic structure with a P-1 space group and they correspond to the formula (Li A) (ZZ ') (SO) (PO) (PO F) FO (OH) in which A represents a gap or at least one doping element; Z represents at least one element selected from Fe, Co, and Ni; Z 'represents a gap or at least one doping element; the indices a, b, x, z, s, p, r, f, g and h are chosen so as to ensure the electroneutrality of the compound, and a≥0, b≥0, x≥0, z≥0, s> 0, p≥0, f≥0, r≥0, g≥0, h≥0; the respective amounts a and b of dopant A and Z 'are such that the triclinic structure is preserved. They are obtained by an ionothermal process, from their precursors. They are useful especially as electrode active material. |