Electrode comprising lithium-rich nickel manganese oxides

An electrochemical cell comprising the cathode disposed on a current collector, an anode disposed on an anode current collector and an electrolyte wherein the cathode comprises

• an active material present in an amount of from 70 to 99 weight percent, wherein the active material comprises a lithium rich nickel manganese oxide;
• a conductive network of a mixture of conductive elements present in an amount of from 0.25 to 20 weight percent, wherein the mixture of conductive elements comprises two or more of low aspect ratio particles, plate-like particles, and needle-like particles, and
• a binder system present in an amount of from 0.25 to 10 weight percent, wherein the binder system comprises a primary binder polymer and an acid group or a salt thereof,
• wherein the amounts are based on a total weight of the cathode.