Achieving High-Performance Spherical Natural Graphite Anode through a Modified Carbon Coating for Lithium-Ion Batteries

The electrochemical performance of modified natural graphite (MNG) and artificial (AG) was investigated as a function electrode density ranging from 1.55 to 1.7 g?cm?3. best obtained at g?cm?3 1.60 for the AG MNG electrodes, respectively. Both AG, g?cm?3, MNG, showed quite similar with regard cycling stability coulombic efficiency during 30 45 °C, while electrodes better rate than superior capability can be explained by following effects: first, their spherical morphology higher led enhanced electrical conductivity. Second, sample, favorable tortuosity retained thus Li+ transport in pore not significantly affected, even high densities also exhibited swelling behavior electrodes.