Cathode design and composition for lithium-ion batteries

A battery cell comprising:

• a cathode comprising a cathode active material disposed on a cathode current collector, the cathode active material comprising
• a plurality of LCO particles formed of a compound having the structure of Formula (I):
• Liα1CO(1-w-x-y-z)AlwMgxMnyNizOδ1 (I)
• wherein 0.95≤α1≤1.30 per mole fraction;
• 30%≤(1-w-x-y-z)≤60% by weight,
• 0%≤w≤1% by weight, 0%≤x≤0.2% by weight, 0%≤y≤10% by weight, and
• 0%≤z≤26% by weight;
• and 1.98≤δ1≤2.04 per mole fraction,
• wherein the plurality of LCO particles has 5 μm≤D50≤20 μm;
• and
• a plurality of NMC particles formed of a compound having the structure of Formula (II):
• Liα2Ni(1-u-v)MnuCovOδ2 (II)
• wherein 0.95≤α2≤1.30 per mole fraction;
• 39%≤(1-u-v)≤51% by weight, 2%≤u≤20% by weight, 3%≤v≤20% by weight;
• and 1.98≤δ2≤2.04 per mole fraction,
• wherein the plurality of NMC particles has 2 μm≤D50≤8 μm;
• an anode comprising an anode active material disposed on an anode current collector, the anode oriented towards the cathode such that the anode active material faces the cathode active material;
• and
• a separator disposed between the cathode active material and the anode active material.