| abstract |
The invention relates to a process for preparing perfluoroalkylfluorophosphoranes of the general formula n n n (C n F 2n+m ) y PF 5−y (I) n n n where n n is 1, 2, 3, 4, 5, 6, 7 or 8 n m is +1 or −1 and n y is 1, 2 or 3, n where the ligands (C n F 2n+m ) may be identical or different, and also to their use as electrolytes and as precursors for conducting salts, and to their employment in lithium batteries. |