Current concerns of the pressing environmental pollution issues and limited fossil energy resources have increased the R&D interest and investment in clean energy technologies. LIBs, as commonly used clean energy storage devices, have transformed portable electronic devices and electric transportation greatly, but have limitations of high cost and relatively low specific energy [1]. Due to adva...

Lithium-sulfur (Li−S) batteries are recognized as one of the most promising technologies with potential to become next-generation batteries. However, ensure Li−S reach commercialization, complex challenges remain, among which tailoring an appropriate electrolyte is important. This review discusses role electrolytes in batteries, focusing on main issues and solutions for shuttle mechanism polysu...

Owing to the possibilities of achieving high theoretical energy density and gravimetric capacity, sulfur has been considered as a promising cathode material for rechargeable lithium batteries. However, sulfur shows rapid capacity fading due to the irreversible loss of soluble polysulfides and the decrease in active sites needed for conducting agents. Furthermore, the low electrical conductivity...

Lithium nitrate (LiNO3) is known as an important electrolyte additive in lithium-sulfur (Li-S) batteries. The prevailing understanding is that LiNO3 reacts with metallic lithium anode to form a passivation layer which suppresses redox shuttles of lithium polysulfides, enabling good rechargeability of Li-S batteries. However, this view is seeing more challenges in the recent studies, and above a...

An activated carbon aerogel (ACA-500) with high surface area (1765 m2 g-1), pore volume (2.04 cm3 g-1), and hierarchical porous nanonetwork structure is prepared through direct activation of organic aerogel (RC-500) with a low potassium hydroxide ratio (1:1). Based on this substrate, a polyaniline (PANi)-coated activated carbon aerogel/sulfur (ACA-500-S@PANi) composite is prepared via a simple ...

Abstract The breathing pipe of a produced water storage tank in sulfide-containing natural gas station is prone to deposit formation, which leads pipeline blockage. In this study, scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS), and diffraction (XRD) analyses the show that composed elemental sulfur corrosion scales ferrous polysulfide sulfate. Existing formation p...

The X-ray absorption spectroscopy technique has been applied to study different stages of the lithium/sulfur (Li/S) cell life cycle. We have investigated how speciation of S in Li/S cathodes changes upon the introduction of CTAB (cetyltrimethylammonium bromide, CH₃(CH₂)15N⁺(CH₃)₃Br-) and with charge/discharge cycling. The introduction of CTAB changes the synthesis reaction pathway dramatically ...

Hollow carbon spheres (HCS) with a nanoporous shell are promising for the use in lithium-sulfur batteries because of the large internal void offering space for sulfur and polysulfide storage and confinement. However, there is an ongoing discussion whether the cavity is accessible for sulfur. Yet no valid proof of cavity filling has been presented, mostly due to application of unsuitable high-va...