At the later stages of both phase transitions, low-angle tilt boundaries are formed at the same locations dividing the particle into three domains with varying angular deviation (0.2-0.4 • ). Lattice misorientation of different parts of the crystal occurs only during two transitions when regions of different phase (and thus varying lattice parameter) coexist in the same single crystal. The location of the tilted domains of Li 0.5 phase does not correlate with the Li 1 phase which does not exhibit any misorientation and domain separation (Figure ). This likely indicates that the Li 1 phase is located in the center of the particle and has a mostly defect-free lattice not affected by the reorientation. On the other hand the outer parts which are delithi- ated first exhibit the rotation described above. We suggest that the cause of this phenomenon lies in the crystal domains mismatch between well separated phases with different lattice parameters. The growing, more delithiated phase (Li 0.5 in case of 1 st transition) with lower lattice constant located on the outer segments of the particle accumulates stress due to a tendency to retain a coherent interface with the less delithiated phase (Li 1 in case of 1 st transition). This stress is released after reaching a certain threshold of nascent phase fraction by misorientation of certain domains and creating a number of tilt boundaries between those domains with high defect concentration.