Li atoms in Li-ion battery materials are too light to be imaged by conventional TEM. The following figure is an annular bright-field (ABF) image of LiMn2O4 by aberration-corrected STEM, and it shows clearly the projections of the Li atom columns. This sample is from the group of Professor Lin Gu at Institute of Physics, Chinese Academy of Sciences. This figure was obtained by the CEM members and Dr. Yücelen of FEI in February, 2015.
