Fig. 3: Multimodal characterization of binder-free sulfur-carbon (S-C) composite electrodes prepared at room temperature (RT) and 80 °C. | Nature Communications

Fig. 3: Multimodal characterization of binder-free sulfur-carbon (S-C) composite electrodes prepared at room temperature (RT) and 80 °C.

From: Binding properties of sulfur to enable solvent-free fabrication of high-performance polymer-free sulfur-carbon positive electrodes

Fig. 3: Multimodal characterization of binder-free sulfur-carbon (S-C) composite electrodes prepared at room temperature (RT) and 80 °C.

a XRD patterns of the S-C composite powder and binder-free S-C composite positive electrodes with aluminum (Al) foil substrate prepared via the solvent-free process at RT and 80 °C. b X-ray micro computed tomography (μ-CT) analysis and c top-view SEM, and d cross-sectional SEM images of the RT-pressed electrodes, e X-ray μ-CT analysis and f top-view SEM, and g cross-sectional SEM images of the 80 °C-pressed electrodes. Porosity distribution along the electrode thickness, as revealed by X-ray μ-CT, is shown adjacent to the cross-sectional SEM images.

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