Abstract
Due to their high ionic conductivity, compounds with NASICON structure Li1+xAl1xTi2- xP3O12 (LATP) or Li1+xALxGe2-xP3O12 (LAGP), have been widely investigated since they are good candidates as solid electrolytes in lithium batteries. Besides the classic route of sintering, these compounds have also been obtained in the form of glass-ceramics. Initially, the interest in the glass-ceramic r…