Nitrogen-doped hollow carbon@tin disulfide as a bipolar dynamic host for lithium-sulfur batteries with enhanced kinetics and cyclability

Carbons derived from resole-type phenolic resins for use in lithium–sulfur batteries: templating the resins with sulfur leads to enhanced cell performance

“…Reviewing the literature, carbons pyrolysed above 600 °C can lead to extensive microporous networks, but this typically requires the etching of a hard-template of silica as the pore former. 27 The methodology put forward in this work used sulfur that had been deposited from ammonium thiosulfate and ultimately could be removed during a single step of calcining which takes place within the pyrolysis process.…”

Exquisitely constructing hierarchical carbon nanoarchitectures decorated with sulfides for high-performance Li–S batteries

“…5 In the last few decades, tremendous efforts have been made to mitigate aforementioned issues through the combination of sulfur with various conductive hosts by chemical or physical interaction. [6][7][8] Although the cycling stability and rate capability of these sulfur cathodes were significantly improved, inactive hosts increase the dead weight, which leads to low sulfur content throughout the electrode, hindering the practical application of LSBs. 9 In contrast to the sulfur cathode architecture, creating functional separators is an easy and efficient way to prevent the shuttle effect and enhance the electrochemical performance of LSBs.…”

Covalent Bond Hybrid Nanostructure of N-doped rGO and Ultrathin SnS2 with High Porosity for Lithium-Ion Batteries

“…Carbon has been used to create voids, buffer the volume expansion of non-carbon, and provide a shell for the formation of a stable solid electrolyte interphase (SEI). In addition, nitrogen-doped graphene has been used as a carrier for tin sulfides and other anode materials. , The performance of nitrogen-doped graphene composite was further improved and more favorable properties were obtained, such as improving conductivity for faster charge transfer and additional lithium storage induced at more defect sites. − The sacrificial template (PMMA, SiO 2 , etc.) method was usually used to improve the porosity of active materials and improve cycle stability. , Therefore, the combination of ultrathin SnS 2 and high porosity nitrogen-doped graphene would be an effective way to improve the anode performance of lithium-ion batteries.…”

“…In addition, nitrogen-doped graphene has been used as a carrier for tin sulfides and other anode materials. 38,39 The performance of nitrogen-doped graphene composite was further improved and more favorable properties were obtained, such as improving conductivity for faster charge transfer and additional lithium storage induced at more defect sites. 40−43 The sacrificial template (PMMA, SiO 2 , etc.)…”