Li.sub.2 Mn.sub.4 O.sub.8+z, with z greater than zero and less than one, is
prepared from LiMnO.sub.4 and an appropriate complimentary compound, such
as MnOOH, MnO.sub.2 or MnCO.sub.3 precursors. The Li.sub.2 Mn.sub.4
O.sub.8+z is useful in highly oxidized lithium manganospinels.
Li.sub.2 Mn.sub.4 O.sub.8+z, con z mayor que cero y menos de uno, está preparado de LiMnO.sub.4 y un compuesto elogioso apropiado, tal como MnOOH, los precursores MnO.sub.2 o MnCO.sub.3. El Li.sub.2 Mn.sub.4 O.sub.8+z es útil en manganospinels altamente oxidados del litio.
