Fig. 2.
Edge dislocations as nucleation sites of intragranular cracks in cycled LiNi0.6Mn0.2Co0.2O2. a Cracks connecting with edge dislocations with extra (003) planes. b Three intragranular cracks labeled as “1”, “2” and “3”. The yellow arrows indicate crack ends. c and d the enlarged region marked by the red and blue squares in (b). (102) extra planes are identified in “1” and “3” as highlighted in (c) and (d), respectively, verifying the edge dislocation in each crack. The scale bars are 3 nm in (a), (c) and (d); 5 nm in (b)