The tiff image is a segmented image of the Lithium-Sulfur cathode used in the referenced paper. The image is obtained using the combination of watershed segmentation and manual segmentation into three distinctive phases, elemental sulfur (yellow), carbon-binder-domain (green), and pores (purple), which would fill with electrolyte. The size of the image is 1250 x 1150 x 131 voxels, and each voxel is 177.1 nm.