fig12

Figure 12. Li distribution of NMC811 specimens in APT. (A) APT data from a UHV transferred specimen with in-situ delithiation during the APT experiment. (B) APT data from an air-transferred specimen with the nominal Li composition and without delithiation, possibly due to the shielding effect of the surface corrosion product. The measurements were performed at a specimen temperature of 60 K and a pulsed laser energy of 5 pJ. Scale bars in (A and B) are 20 and 50 nm, respectively. Reproduced with the permission of Ref.^[85] Copyright 2022, Royal Society of Chemistry.