Li-rich　layered　oxide　cathode　Li1.26Fe0.22Mn0.52O2　is　synthesized　via　a　low　temperature　molten　salt　method,　and　the　carbon　modified　samples　are　fabricated　through　coating　sucrose　on　the　precursors　with　different　sucrose　ratios.　The　crystal　structure　and　morphology　of　the　pristine　and　the　carbon　modified　samples　are　characterized　by　X-ray　diffraction　(XRD),　scanning　electron　microscopy　(SEM)　and　transmission　electron　microscopy　(TEM).　The　crystal　structure　appears　as　a　hexagonal　alpha-NaFeO2　layered　structure　(space　group:　R(3)　over　bar　m)　and　is　kept　after　carbon　modified.　The　carbon　element　distributes　uniformly　on　the　surface　of　the　modified　samples　verified　by　Energy　Dispersive　Spectrometer　(EDS).　The　electrochemical　performance　of　the　Li1.26Fe0.22Mn0　O-52(2)　Li-rich　cathode　materials　is　greatly　improved　after　carbon　modification.　The　cycling　stability　of　the　carbon　modified　samples　is　also　highly　improved　compared　with　the　pristine.　Particularly　the　rate　performance　is　enhanced　by　the　appropriate　coating　content　of　sucrose　(1:6),　the　discharge　capacities　are　160mAh/g,　133mAh/g　and　78mAh/g　at　2C,　3C　and　5C　rate　respectively.　They　also　have　83.4%,　82.5%　and　83.4%　capacity　retention　after　50cycles　at　2C,　3C　and　5C　respectively.　Electrochemical　Impedance　Spectroscopy　(EIS)　results　demonstrate　that　the　charge　transfer　resistance　of　the　carbon　modified　sample　decreases　obviously.　It　is　suggested　that　the　carbon　modification　could　minimize　the　cell　polarization　and　increase　the　electronic　conductivity　of　the　Li-rich　cathode　materials.　Additionally,　the　annealing　process　of　sucrose　coating　may　offer　much　higher　local　temperature　to　improve　the　crystallization　and　volatile　the　excess　Li　source　to　suppress　Li-2　CO3　impurity　formation　verified　by　the　result　of　XPS.　(C)　2014　Elsevier　Ltd.　All　rights　reserved.