RECHARGEABLE ELECTROCHEMICAL CELL

摘要

The invention relates to a rechargeable lithium battery cell having a casing, a positive electrode, a negative electrode and an electrolyte which contains a conductive salt, wherein the electrolyte is based on ­SO2 and the positive electrode contains an active material of the composition LixM'yM"z(XO4)aFb, where M' is a least one metal, selected from the group comprising the elements Ti, V, Cr, Mn1, Fe, Co, Ni, Cu and Zn, M" is a least one metal, selected from the group comprising the metals from the groups II A, III A, IV A, V A, VI A, IB, IIB, IIIB, IVB, VB, VIB und VIIIB, X is selected from the group comprising the elements P, Si and S, x is greater than 0, y is greater than 0, z is greater than or equal to 0, a is greater than 0 and b is greater than or equal to 0.