Fast Lithium Ion Conduction in Garnet‐Type Li 7 La 3 Zr 2 O 12

Low activation energy and fast lithium ion conduction have been observed for the new compound Li7La3Zr2O12. Relative to previously reported lithium garnets, the solid electrolyte shows a larger cubic lattice constant, higher lithium ion concentration, lower degree of chemical interaction between the Li+ ions and the other lattice constituents, and higher densification.