Key challenges, recent advances and future perspectives of rechargeable lithium-sulfur batteries

Separator Modified by Carbon-Encapsulated CoFe Alloy Nanoparticles Supported on Carbon Nanotubes for Advanced Lithium–Sulfur Batteries

“…However, traditional lithium-ion batteries have reached the upper limit of their theoretical energy density. As one of the most promising next-generation batteries, lithium–sulfur (Li–S) batteries have received a great deal of attention due to their high theoretical energy density (2600 W h/kg) and low cost. , However, there are still several intrinsic problems that seriously hinder their applications to energy storage scenarios on a large scale. For instance, active sulfur is electrically nonconductive in nature and has large volume expansion when it is converted into lithium sulfide (Li 2 S), leading to low utilization of sulfur and capacity decay .…”

3D interconnected N-doped graphene architecture encapsulated with oxygen-deficient TiO2 nanotube array: synergism of oxygen vacancy and carbon materials on enhanced sulfur conversion and catalytic activity of TiO2 nanotube array in Li–S batteries

“…However, creating sulfur cathodes can help reduce resource waste and environmental pollution. 14 These batteries have caught a significant amount of attention due to their remarkable potential. Nevertheless, its practical implementation is constrained by a number of significant scientific concerns, including the "shuttle effect" of lithium polysulfides, a considerable change in volume, the low conductivity of sulphur and the residual compounds it forms, and the self-discharge issues.…”

Synthesis strategies of smart 3D nanoarchitectures and their applications in energy storage and conversion

“…The principal fossil fuel sources that are used by humans today include coal, oil, and natural gas, which emit toxic fumes and small particles of dust. 1 Researchers are looking for alternative green energy technologies with higher efficiency and less damaging nature as a result of the growing use of fossil fuels and the associated environmental pollution. 2 Over the past three decades, scientific study has focused on nanomaterials, which are now being extensively investigated for their many potential uses.…”