The　nano　SnO2-modified　LiNi1/3Co1/3Mn1/3O2　was　successfully　prepared　by　a　carrier　transfer　method.　The　pristine　and　modified　samples　were　characterized　with　various　techniques　such　as　XRD,　SEM,　XPS　and　EDS.　The　results　showed　that　the　SnO2　particles　did　not　enter　the　crystal　structure　of　LiNi1/3Co1/3Mn1/3O2,　many　nano　SnO2　particles　were　uniformly　covered　on　the　surface　of　LiNi1/3Co1/3Mn1/3O2　and　the　modified　thin　layer　could　inhibit　the　dissolution　of　transition　metal　oxides.　The　electrochemical　tests　indicated　that　the　existence　of　nano　SnO2　could　improve　the　discharge　capacity　and　rate　capability　owing　to　the　decreased　interfacial　polarization.　The　cycling　stability　was　remarkably　improved　at　room　temperature　and　55　degrees　C.　The　XRD　patterns　of　the　fresh　NCM　electrode　and　after　50　cycles　proved　that　the　structural　change　of　NCM　was　not　so　effective　on　the　capacity　fade.　(C)　2015　Chinese　Chemical　Society　and　Institute　of　Materia　Medica,　Chinese　Academy　of　Medical　Sciences.　Published　by　Elsevier　B.V.　All　rights　reserved.