Fig. 2: Stress distribution simulation.
From: Kirkendall effect-induced uniform stress distribution stabilizes nickel-rich layered oxide cathodes
a, c Cross-sectional image of a c-LiNi0.96Al0.04O2 and c hk-LiNi0.96Al0.04O2. b, d Contour plot of equivalent stress as a function of delithiation depth (x in Li1-xNi0.96Al0.04O2) within secondary particles upon charging of b c-LiNi0.96Al0.04O2 and d hk-LiNi0.96Al0.04O2. The black arrows show the stress concentration at the core region of c-LiNi0.96Al0.04O2. Scale bar, 2 μm.
