| 摘要 |
The present invention relates to a method for the production of metal difluorophosphates, specifically to the production of LiPO 2 F 2 , in an organic solvent. More specifically, it relates to a method for the production of metal difluorophosphates comprising a step of reacting a compound selected from the group consisting of phosphorus pentafluoride (PF 5 ), phosphoryl fluoride (POF 3 ), and mixtures thereof, with a metal orthophosphate, bicarbonate or carbonate in an organic solvent, preferably in an organic solvent which dissolves the product metal difluorophosphates. The present invention is also directed to novel crystalline forms of LiPO 2 F 2 and electrolyte solutions thereof. |
