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US 2025/0096235 A1Published application
Cathode design and composition for lithium-ion batteries
OwnerHongli Dai, Chi-kai Lin +7inventors
InventorsHongli Dai, Chi-kai Lin, James A. Gilbert, Khalil Amine, Jihyeon Gim, John David Carter, Arthur Jeremy Kropf, Yingying Xie, Haiping Xu
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Abstract
This disclosure relates to cathode active materials for use in lithium-ion battery cells.
Claims20
A 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 m≤D50≤8 m.
10 more elements
Dependencies are inferred from the claim text.