Figure 19.

a) Layer‐structured LiCoO₂ crystal structures: a‐1) high temperature rhombohedral structure and a‐2) low temperature cubic structure. Reproduced with permission.^{[ 268 ]} Copyright 2012, Elsevier. b) Orientation of thin film prepared by PLD. Reproduced with permission.^{[ 269 ]} Copyright 2007, Elsevie. c) Influence of oxygen partial pressure used in the deposition on specific capacity. Reproduced with permission.^{[ 216 ]} Copyright 2012, Elsevier. d) Schematical illustration of three typical orientation, and e) high‐resolution TEM images: e‐1) $[1\overline{1}0]$ orientated file and e‐2) $[11\overline{2}]$ orientated film. d,e) Reproduced with permission.^{[ 270 ]} Copyright 2012, Elsevier.