Rapid lithium insertion and location of mobile lithium in the defect perovskite Li0.18Sr0.66Ti0.5Nb0.5O3

Abstract

Fast and fancy: Lithium that was originally disordered within the structure of the perovskite Li0.18Sr0.66Ti0.5Nb0.5O3 can be induced into ordering within the yellow region of the unit cell by low temperatures and treatment with n-butyl-lithium. The fast kinetics of lithium insertion, in connection with a color change, make this nontoxic, air-stable material a suitable candidate for use in electrochromic systems or lithium-storage batteries. © 2012, Wiley-VCH Verlag GmbH & Co. KGaA