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- W2064740625 abstract "As the promising anode material for Li-ion batteries (LIBs), transition metal oxides possess much higher theoretical lithium storage capacities than the commercially used graphite. However, the large volume variation during the lithium insertion/desertion processes and the relatively low electrical conductivity of transition metal oxides usually lead to poor battery performance, impeding their extensive use for LIBs. Here, we report the synthesis of a new type of nanocomposite consisting of Fe3O4 nanocrystals (NCs) and multiwalled carbon nanotubes (CNTs), which can be used as high-performance LIB anode materials. The nanocomposite is formed by hydrolysis of iron precursors in the presence of poly(acrylic acid)-functionalized CNTs (PAA-CNTs), resulting into Fe3O4 NCs which are firmly and uniformly attached to the CNT surface. When the as-formed nanocomposite is coated with a carbon layer by pyrolysis of the low-cost petroleum pitch, the nanocomposite electrodes exhibit significantly enhanced lithium storage capacities and cyclability. In particular, a reversible lithium storage capacity of 850 mAh g−1 is retained after 100 charge/discharge cycles at a current rate of 0.1 C. In comparison, considerably poor battery performance is observed when the CNT- or carbon-free counterpart is used as the LIB anode." @default.
- W2064740625 created "2016-06-24" @default.
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- W2064740625 date "2014-10-01" @default.
- W2064740625 modified "2023-10-18" @default.
- W2064740625 title "Novel Fe3O4-CNTs nanocomposite for Li-ion batteries with enhanced electrochemical performance" @default.
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- W2064740625 doi "https://doi.org/10.1016/j.electacta.2014.08.099" @default.
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