Capacity Fading of Ni-Rich Li[Ni<sub><i>x</i></sub>Co<sub><i>y</i></sub>Mn<sub>1–<i>x</i>–<i>y</i></sub>]O<sub>2</sub> (0.6 ≤ <i>x</i> ≤ 0.95) Cathodes for High-Energy-Density Lithium-Ion Batteries: Bulk or Surface Degradation?
Ni-rich Li[NixCoyMn1–x–y]O2 cathodes (x = 0.6, 0.8, 0.9, and 0.95) were tested to characterize the capacity fading mechanism of extremely rich Ni compositions. Increasing the Ni...