A layer-by-layer supramolecular structure for a sulfur cathode

摘要: Ordered, supramolecular structures which aim at tailoring the surface properties of materials have been greatly influenced by advent layer-by-layer (LBL) self-assembly techniques. Any material with bonding abilities (ionic or hydrogen bonds) and is accessible a solvent can be transformed assembly into multilayer LBL approach. Here we propose nanostructured sulfur cathode truffle-like architecture comprises particle embedded hollow carbon nanospheres encapsulated an ion-selective, flexible nanomembrane decorated conductive carbon. As result this hierarchical arrangement cathodes final loading 65% operate high rate 2C (a 1C corresponds to complete charge discharge in 1 hour) for over 500 cycles nearly 100% coulombic efficiency. These results indicate that type nanointerfacial engineering could also promising solution low electrical conductivity other battery cathodes.