Capillary-induced self-crumpled and sulfur-deficient MoS₂ nanosheets inhibit polysulfide cycling in lithium–sulfur batteries

Abstract

Stable lithium–sulfur batteries (LSBs) have promise to shape a new generation of stable energy-storage devices. Although the energy densities of LSBs (up to 2500 W h kg–1) are higher than...

Amorphous/crystalline heterostructure design enables highly efficient adsorption–diffusion–conversion of polysulfides for lithium–sulfur batteries

“…It is worth mentioning that the performance of our separator modifier is also superior to that of many other separator modifiers, as depicted in Fig. 5h and listed in Table S2 † 8,14,15,48–50,53–64.…”

“…5h and listed in Table S2. † 8,14,15,[48][49][50][53][54][55][56][57][58][59][60][61][62][63][64] To fulll the demand for practical applications of Li-S batteries, the electrochemical performance at high sulfur loading was investigated. Fig.…”

Self-curing solid-state electrolytes based on transamination bond exchange for reliable lithium batteries

“…Specically, R sf−c denotes the resistance attributed to the solid electrolyte interface (SEI) layer between the J-SHSPEs and LFP cathode, while R sf−a corresponds to the resistance originating from the formation of the SEI layer between the J-SHSPEs and the Li anode. 56 The resulting impedances for LFP/J-SHSPE3/Li and LFP/J-SHSPE4/Li are summarized in Table S3. † Upon examination of the data, it is evident that the R sf−a value for the cell employing the J-SHSPE4 membrane increased aer 20 cycles when contrasted with its R sf−a impedance before cycling.…”

Polydopamine-Assisted In Situ Formation of a Covalent Organic Framework on Single-Walled Carbon Nanotubes to Multifunctionalize Separators for Advanced Lithium–Sulfur Batteries

“…Subsequently, sulfur/MWCNT nanocomposite, Super P carbon, and PVDF at a mass ratio of 7:2:1 were dispersed in NMP. The sulfur cathode was fabricated by casting the resultant slurry on an aluminum foil employing a doctor blade and drying in an oven at 60 °C for 12 h. The sulfur loading was about 1.2 mg cm –2 for the routine electrochemical performance test, which was within the sulfur loading range of most of cathodes (0.8–1.5 mg cm –2 ) used to explore the effect of separator modification on the performance of Li–S batteries in the literature. − The cathode with high sulfur loading was fabricated with a carbon cloth as the current collector.…”