Fabrication of Nano/Micro Hierarchical Fe[sub 2]O[sub 3]∕Ni Micrometer-Wire Structure and Characteristics for High Rate Li Rechargeable Battery
- 1 January 2006
- journal article
- Published by The Electrochemical Society in Journal of the Electrochemical Society
- Vol. 153 (7), A1273-A1278
- https://doi.org/10.1149/1.2195887
Abstract
The nano/micro hierarchical Fe2O3∕NiFe2O3∕Ni micrometer wire, which is a low-cost material, as a negative electrode for Li-ion cells with the high specific capacity at high charge/discharge current rate, was fabricated. Nanocrystalline and mesoporous Fe2O3Fe2O3 film was formed on nickel mesh, knitted of nickel micrometer wires, via pyrolytic transformation of FeO(OH)0.29(NO3)0.27(CO3)0.22∙0.6H2OFeO(OH)0.29(NO3)0.27(CO3)0.22∙0.6H2O film, which was directly deposited on the entire surface of the nickel mesh by chemical bath deposition. The nestlike morphology with nanoflake of iron oxyhydroxide was maintained after the pyrolysis reaction into Fe2O3Fe2O3 . Moreover, each nanoflake was constructed by several nanometers particles. This specific hierarchical morphology not only provides ideal electrolyte, lithium ion paths, and electronic paths, but it also reduces both the required diffusion length in the active materials and the effective specific current density. The resultant Fe2O3Fe2O3 negative electrode, which gives a high specific charge/discharge capacity 780mAh∕g780mAh∕g with good cycle performance even in a high charge/discharge current rate of 13A∕g13A∕g , indicates the possibility for an energy storage device with high energy density at high power density.Keywords
This publication has 38 references indexed in Scilit:
- Electrochemical study of nanometer Co3O4, Co, CoSb3 and Sb thin films toward lithiumSolid State Ionics, 2004
- Effect of Particle Size on Lithium Intercalation into α-Fe[sub 2]O[sub 3]Journal of the Electrochemical Society, 2003
- Combined XRD, EXAFS, and Mössbauer Studies of the Reduction by Lithium of α-Fe[sub 2]O[sub 3] with Various Particle SizesJournal of the Electrochemical Society, 2003
- Investigation of cobalt oxides as anode materials for Li-ion batteriesJournal of Power Sources, 2002
- Rationalization of the Low-Potential Reactivity of 3d-Metal-Based Inorganic Compounds toward LiJournal of the Electrochemical Society, 2002
- Nano-sized transition-metal oxides as negative-electrode materials for lithium-ion batteriesNature, 2000
- Study of Fe2O3-based thin film electrodes for lithium-ion batteriesSolid State Ionics, 1998
- Preparation and Characterization of Some Lithium Insertion Anodes for Secondary Lithium BatteriesJournal of the Electrochemical Society, 1990
- Iron oxide electrodes in lithium organic electrolyte rechargeable batteriesElectrochimica Acta, 1985
- High-temperature lithiation of α-Fe2O3: A mechanistic studyJournal of Solid State Chemistry, 1984