Contact: Karen McNulty Walsh
DOE/Brookhaven National Laboratory
Caption: These images show how the surface morphology and internal microstructure of an individual tin particle changes from the fresh state through the initial lithiation and delithiation cycle (charge/discharge). Most notable are the expansion in overall particle volume during lithiation, and reduction in volume and pulverization during delithiation. The cross-sectional images reveal that delithiation is incomplete, with the core of the particle retaining lithium surround by a layer of pure tin.
Credit: Courtesy of Brookhaven National Laboratory
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