Abstract
Preparation of vein graphite anode materials by eco-friendly mild oxidation, for lithium-ion rechargeable batteries
Highlights
Lithium-ion Rechargeable Batteries (LIBs) have been identified as a very reliable and most promising power source and especially used in hybrid vehicles and portable electronic devices
The vibrational bands correspond to νC=O stretching at 1720-1680 cm-1, νO-H stretching at 1360 cm-1 and νC-O stretching at 1260-1000 cm-1 are predominant in the mildly oxidized graphite surface (Ein-Eli and Koch, 1997)
The Fourier Transform Infrared Spectroscopy (FT-IR) spectra of four morphological varieties confirm the formation of acidic groups or an oxidized layer on the surface of vein graphite after the mild oxidation with H2O2
Summary
Lithium-ion Rechargeable Batteries (LIBs) have been identified as a very reliable and most promising power source and especially used in hybrid vehicles and portable electronic devices. CO, CO2 and CxHy (Wissler, 2006). In this contest, natural vein graphite has identified as an effective anode material for LIBs due to high abundance. Natural graphite can not be directly used as anode material due to poor electrochemical performance (Fu et al, 2006). The poor electrochemical performance resulted due to electrolyte decomposition, solvent cointercalation and movement of the graphene layers along the a-axis direction during the intercalation and de-intercalation (Fu et al, 2006)
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