%0 Journal Article
%T Ultrafast Li Electrolytes Based on Abundant Elements: Li$_{10}$SnP$_2$S$_{12}$ and Li$_{11}$Si$_2$PS$_{12}$
%A Alexander Kuhn
%A Oliver Gerbig
%A Changbao Zhu
%A Frank Falkenberga
%A Joachim Maier
%A Bettina V. Lotsch
%J Physics
%D 2014
%I arXiv
%X We report on the synthesis and characterization of two solid electrolytes, Li$_{10}$SnP$_2$S$_{12}$ and Li$_{11}$Si$_2$PS$_{12}$, which are based exclusively on abundant elements. Both compounds feature extremely high Li ion diffusivities, with the Si-based material even surpassing the present record holder, the related electrolyte Li$_{10}$GeP$_2$S$_{12}$. The structure and dynamics were studied with multiple complementary techniques and the macroscopic diffusion could be traced back to fast Li ion hopping in the crystalline lattice.
%U http://arxiv.org/abs/1402.4586v1