File Name : figure1s.eps Caption : free energy versus potential (li+/li) corresponding to li-sn and li-si alloys. File Name : figure2s.eps Caption : experimental isotropic chemical shift vs. theoretical isotropic chemical shielding calculated for different lisn and li13sn5. File Name : figure3s.eps Caption : sem image and edx analysis for the synthesized sn/si/μg powder.