Electrochemical Impedance Analysis of a Hierarchical CuO Electrode Composed of Self-Assembled Nanoplates
Citations Over TimeTop 1% of 2011 papers
Abstract
Although 3d transition metal oxides (TMOs) are well-known as promising anodes for Li ion batteries, little is known about the mechanism of electrode process kinetics. In this work, impedance behavior of the flower-like hierarchical CuO electrode is first investigated to understand the kinetics that influences the performances of TMOs toward lithium. The electrochemical impedance spectra are measured at different discharge and charge states during cycling. A modified two-parallel diffusion path model is set up to account for the Nyquist plots. The kinetic parameters in the model that represent the migration of lithium ions through surface-passivating film, charge transfer on active material/electrolyte interfaces, and diffusion of lithium ions in solid material are discussed in detail. On the basis of the analysis of the variation of kinetic parameters, several promising approaches are proposed to improve the electrochemical performances of copper oxides, which can also be applicable to all the 3d transition metal oxides.
Related Papers
- → Electrochemical-Impedance-Spectroscopy (EIS) Study of Corrosion of Steels 12CrMoV and SS304 Beneath a Molten ZnCl2–KCl Film at 400 °C in Air(2009)25 cited
- → Influence of Compression and Hot-compression in Electron Transport in Dye-sensitized Solar Cells Studied by Electrochemical Impedance Spectroscopy Analysis(2018)3 cited
- → 3D Anode Microbial Fuel Cell Characterization and Monitoring Coupling X-Ray Tomography and Electrochemical Impedance Spectroscopy(2021)1 cited
- → Electrochemical Impedance Spectroscopy Study on Electrodeposition of Chromium in Sargent Bath.(2000)2 cited
- Characteristics of Electrochemical Impedance Spectroscopy of Epoxy Coatings Modified by Nano-SiO 2(2011)