Lithium dimer formation in the Li-conducting garnets Li5+xBaxLa3−xTa2O12 (0 < x ≤ 1.6)†
Abstract
The garnet system Li5+xBaxLa3−xTa2O12 shows an unprecedented Li+ content (x ≤ 1.6) and short Li–Li distances of ca 2.44 Å between majority occupied sites suggesting that the high Li+ mobility requires a complex cooperative mechanism.