Citation: Zeilinger, Michael; Baran, Volodymyr; van W\"ullen, Leo; H\"aussermann, Ulrich; F\"assler, Thomas F. (2013). Stabilizing the Phase Li15Si4through Lithium--Aluminum Substitution in Li15--xAlxSi4(0.4 <x< 0.8)---Single Crystal X-ray Structure Determination of Li15Si4and Li14.37Al0.63Si4. Chemistry of Materials, 25, pp. 4113-.