A　simple　and　versatile　method　for　the　preparation　of　chlorine-doped　TeO2　was　developed　via　thermal　decomposition　of　Te6O11Cl2　in　situ.　Te6O11Cl2　was　prepared　with　TeCl4　and　ethanol　as　reagents,　while　TeO2　was　fabricated　with　water　as　a　solvent.　The　morphology,　surface,　and　electrochemical　performances　of　the　obtained　materials　were　systematically　studied.　It　was　found　that　chlorine-doped　TeO2　demonstrated　the　highest　cycling　efficiency　and　stability　than　Te6O11Cl2　and　TeO2.　The　presence　of　Te-Cl　bond　is　expected　to　contribute　to　the　reversible　capacity　and　Li　inserting　process.　©　2012　The　Author(s).