Fig. 2: Strain-free properties of the Mn-rich QO-NCM and QO-NM cathodes.
From: Zero-strain Mn-rich layered cathode for sustainable and high-energy next-generation batteries

a,b, Changes in the c-axis lattice parameter (∆c/c0) (a) and anisotropy ratio ((∆a/a0)/(∆c/c0)) (b) during electrochemical delithiation of QO-NCM45, QO-NCM50, Co-free QO-NM60 and conventional Li[NixCoyMn1−x−y]O2 (x = 0.5, 0.6, 0.8, 0.9 and 1) cathodes.