Fig. 4: Microstructural study, elemental mapping, and schematic illustration of the sulfur electrode with the different binder systems.
From: A saccharide-based binder for efficient polysulfide regulations in Li-S batteries
Top-view SEM images and schematic illustration of the architecture in sulfur cathodes with different binders. a–c pure CMC as the binder, demonstrating a cohesive network of agglomerated particles being trapped in the network of the binder; d–f CMC/G as the binder, illustrating a segregated structure that separated particles linked by web-like binders. Cross-sectional SEM images and elemental mapping of cathodes with different binders. g–i pure CMC as the binder, demonstrating a continuous binder film covering on the surface of particles; j–l CMC/G as the binder, illustrating the existence of bridging bonds across the electrode and excellent sulfur exposure.
