Lithium intercalation studies of petroleum cokes of different morphologies

Petroleum cokes with different morphologies are studied in lithium intercalation experiments. Several types of calcined petroleum cokes with varying microstructures and surface morphologies are heat treated at temperatures approaching 2800°C. The physical and structural properties are studied by multi-point N2 gas adsorption analysis, particle size measurements, electron microscopies and X-ray diffraction (XRD) analysis. Changes in the properties of materials during heat treatment are significant. The effects of the coke structures and heat treatment conditions on their electrochemical lithium intercalation behavior will be discussed.