Surface structure evolution of cathode materials for Li-ion batteries
Lyu Yingchun1, Liu Yali2, Gu Lin1, 3, †,
       

TEM images of nanosize LiCoO2 particle in different situations: (a) pristine, (b) soaked by 1 M LiPF6dissolved in EC/DMC (1:1 in volume) electrolyte for 7 days, (c) soaked by anhydrous DMC (< 10 ppm) for 7 days, and (d) after 10 cycles in a LiCoO2/Li cell at a voltage range of 2.5–4.3 V.[81]