Cathode active material and its use in rechargeable electrochemical cells

Abstract

Disclosed herein is a cathode active material of the general formula (I) in which the variables are each defined as follows: M1 is Ti, Zr, Hf or a mixture thereof, M2 is Co, Mn, Al or a mixture thereof, M3 is Mg, Ca, Sr, Ba, Ce or a mixture thereof, x is in the range of from 0.6 to 1.0, y is in the range of from 0.6 to 0.95, a is in the range of from 0.05 to 0.4, b is in the range of from 0.00 to 0.35, c is in the range of from 0.00 to 0.35, where a+b+c=1−y. Also disclosed herein are an electrode material including said cathode active material, electrodes produced from or using said electrode material, a rechargeable electrochemical cell including at least one electrode, and a process for preparing said cathode active material.

Dependencies are inferred from the claim text.