Integrated Design of Interlayer/Current-Collector: Heteronanowires Decorated Carbon Microtube Fabric for High-Loading and Lean-Electrolyte Lithium-Sulfur Batteries.

Low sulfur loading, high electrolyte/sulfur (E/S) ratio, and sluggish sulfur redox reaction are the main challenges that severely impede the practical application of lithium-sulfur batteries (LSBs). To address these problems, a self-standing hollow carbonized cotton cloth (CCC) decorated with TiO -TiN heteronanowires (CCC@TiO -TiN) is proposed to replace the traditional cathode. Concretely, one side of CCC@TiO -TiN serves as a current-collector to load sulfur (CCC@TiO -TiN/S), while the other side facing the separator acts as interlayer to inhibit shuttle effect.

Carbon Microtube Textile with MoS Nanosheets Grown on Both Outer and Inner Walls as Multifunctional Interlayer for Lithium-Sulfur Batteries.

The shuttle effect of soluble lithium polysulfides during the charge/discharge process is the key bottleneck hindering the practical application of lithium-sulfur batteries. Herein, a multifunctional interlayer is developed by growing metallic molybdenum disulfide nanosheets on both outer and inner walls of cotton cloth derived carbon microtube textile (MoS@CMT). The hollow structure of CMT provides channels to favor electrolyte penetration, Li diffusion and restrains polysulfides via physical confinement.

Waste cotton cloth derived carbon microtube textile: a robust and scalable interlayer for lithium-sulfur batteries.

A robust carbonized cotton cloth interlayer composed of numerous knitted hollow carbon microtubes is simply derived from waste cotton cloth by scalable carbonization. The interlayer acts as an upper current collector and a lithium polysulfide barrier simultaneously, thus greatly improving the electrochemical performances of the lithium-sulfur batteries.

Porous and Low-Crystalline Manganese Silicate Hollow Spheres Wired by Graphene Oxide for High-Performance Lithium and Sodium Storage.

Herein, a graphene oxide (GO)-wired manganese silicate (MS) hollow sphere (MS/GO) composite is successfully synthesized. Such an architecture possesses multiple advantages in lithium and sodium storage. The hollow MS structure provides a sufficient free space for volume variation accommodation; the porous and low-crystalline features facilitate the diffusion of lithium ions; meanwhile, the flexible GO sheets enhance the electronic conductivity of the composite to a certain degree.