Promoting spherical epitaxial deposition of solid sulfides for high-capacity Li–S batteries

Abstract

Single-atom Co reconstructs the electronic structure of the solid intermediates, benefits the non-locality of electrons and octahedron–tetrahedron fields of solid intermediates, promotes the electron transfer and Li transport of longitudinal deposition.

Regulating Li+ migration and Li2S deposition by metal-organic framework-derived Co4S3-embedded carbon nanoarrays for durable lithium-sulfur batteries

“…6f, g). This three-dimensional (3D) growth mode is consistent with the observations in the literature and can reduce the surface passivation on Co/C@CC [40]. Interestingly, a flower-like 3D structure composed of Li 2 S 1/2 nanoflakes can be clearly observed on the surface of Co 4 S 3 /C@CC (Fig.…”

In situ N, O co-doped porous carbon derived from antibiotic fermentation residues as electrode material for high-performance supercapacitors

“…The capacitance of OAC-4-700 could still maintain 94.68% after undergoing 10 000 cycles, indicating its excellent cyclic performance. 47 The electrochemical performance of OACs was further studied through EIS measurement (Fig. 6).…”

Interface Engineering Toward Expedited Li2S Deposition in Lithium–Sulfur Batteries: A Critical Review

“…Reproduced with permission. [ 194 ] Copyright 2020, Royal Society of Chemistry. g) Schematic illustration of the functions of 3d‐omsh/ZnS, Co–N–C/S cathode.…”

“…The ultrasmall granular Li 2 S particles can be promptly activated during the subsequent charge process because of their high surface energy, thus guaranteeing a good electrode reversibility. To eliminate the interference of electrode additives (i.e., conductive agents and binders), Zhu and co‐workers [ 194 ] utilized SA Co modified carbon paper (CoSAs‐CP) as a freestanding host to directly study the Li 2 S deposition behavior. Regardless of the dosage of Li 2 S 6 catholyte, CoSAs‐CP consistently exhibits higher discharge capacities than the pristine carbon paper during the initial several cycles.…”

“…f) Schematic illustration showing the deposition behaviors of Li 2 S 2 /Li 2 S on carbon paper and CoSAs-CP. Reproduced with permission [194]. Copyright 2020, Royal Society of Chemistry.…”