Kim, Hyung Sun Chung, Kyung Yoon Cho, Won Il Cho, Byung Won 2024-01-20T21:03:25Z 2024-01-20T21:03:25Z 2021-09-03 2009-07-20 0253-2964 https://pubs.kist.re.kr/handle/201004/132310 The carbon-coated Si/Cu powder has been prepared by mechanical ball milling and hydrocarbon gas decomposition methods. The phase of Si/Cu powder was analyzed using X-ray diffraction (XRD), dispersive Raman spectroscopy, electron probe microanalysis (EPMA) and transmission electron microscope (TEM). The carbon-coated Si/Cu powders were used as anode active material for lithium-ion batteries. Their electrochemical properties were investigated by charge/discharge test using commercial LiCoO(2) cathode and lithium foil electrode, respectively. The surface phase of Si/Cu powders consisted of carbon phase like the carbon nanotubes (CNTs) with a spacing layer of 0.35 nm. The carbon-coated Si/Cu/graphite composite anode exhibited a higher capacity than commercial graphite anode. However, the cyclic efficiency and the capacity retention of the composite anode were lower compared with graphite anode as cycling proceeds. This effect may be attributed to some mass limitations in LiCoO(2) cathode materials during the cycling. English KOREAN CHEMICAL SOC LITHIUM-ION BATTERIES SILICON SI Electrochemical Characteristics of Carbon-coated Si/Cu/graphite Composite Anode Article 1 BULLETIN OF THE KOREAN CHEMICAL SOCIETY, v.30, no.7, pp.1607 - 1610 BULLETIN OF THE KOREAN CHEMICAL SOCIETY 30 7 1607 1610 scie scopus kci ART001524674 000268554800036 2-s2.0-69249201257 Chemistry, Multidisciplinary Chemistry Article LITHIUM-ION BATTERIES SILICON SI Si/Cu/graphite composite anode Carbon nanotube Lithium ion battery