Park, Sang-Eun Kim, Bo-Eun Lee, Sang-Wha Lee, Joong-Kee 2024-01-20T21:02:28Z 2024-01-20T21:02:28Z 2021-09-03 2009-08 1003-6326 https://pubs.kist.re.kr/handle/201004/132272 Silicon composite of nano-capsule type is newly applied as an active anode material for lithium ion batteries. TiO2-encapsulated silicon powders were synthesized by a sol-gel reaction with titanium ethoxide. Silicon nanoparticles were successfully embedded into porous titanium oxide capsules that played as a buffer layer against drastic volume changes of silicon during the charge-discharge cycling, consequently leading to the retardation of the capacity fading of intrinsic silicon materials. The electrochemical and structural properties of silicon nanocomposites with different surface areas of encapsulating TiO2 layer were characterized by X-ray diffraction(XRD), nitrogen gas adsorption analysis by the Brunauer-Emmett-Teller(BET) equation, transmission electron microscopy(TEM), and galvanostatic charge-discharge experiments. English ELSEVIER ELECTROCHEMICAL PROPERTIES ION COMPOSITE NANOCOMPOSITES Employment of encapsulated Si with mesoporous TiO2 layer as anode material for lithium secondary batteries Article 10.1016/S1003-6326(08)60400-8 1 TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA, v.19, no.4, pp.1023 - 1026 TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA 19 4 1023 1026 scie scopus 000269099300051 2-s2.0-68549107730 Metallurgy & Metallurgical Engineering Metallurgy & Metallurgical Engineering Article ELECTROCHEMICAL PROPERTIES ION COMPOSITE NANOCOMPOSITES sol-gel TiO2 silicon secondary battery