TABLE 2.

Lattice parameters, refined lithium occupancies, and relative changes in lithium content in Li_xNi_0.6Mn_0.2Co_0.2O₂ derived from neutron powder diffraction (ND) and electrochemical (EC) measurements.

Sample	a, Å	c, Å	Li occupancy from ND	Δx(Li), from ND	Δx(Li), from EC
Cell 0	2.866	14.181	0.731	-	-
Cell 1	2.864	14.193	0.651 ± 0.018	8.0% ± 1.8%	6.5%
Cell 2	2.826	14.405	0.471 ± 0.023	26.0% ± 2.3%	41.2%

Lithium occupancies and changes in lithium content were obtained from Rietveld refinement of neutron diffraction patterns, while electrochemical values were calculated from the corresponding cycling curves. Values in parentheses indicate estimated standard deviations.