Apple Inc.
High voltage, high volumetric energy density li-ion battery using advanced cathode materials

Abstract:

The disclosed embodiments provide a battery cell. The battery cell includes an anode containing an anode current collector and an anode active material disposed over the anode current collector. The battery cell also includes a cathode containing a cathode current collector and a cathode active material disposed over the cathode current collector. The cathode active material has a composition represented by xLi.sub.2MO.sub.3(1-x)LiCo.sub.yM'.sub.(1-y)O.sub.2.