(a) HRTEM image of the disordered region between two phases in Li₀.5FePO₄crystal with Fourier transforms of the indicated areas.^[53]ABF micrographs of (b1) pristine (LiFePO₄), (b2) fully charged (FePO₄) and (b3) half charged (Li_1−xFePO₄,x= 0.5) materials with the corresponding atomic structure shown in inset. Li sites are marked by yellow circles, and the delithiated sites are marked by orange circles.^[54]