Dual-role magnesium aluminate ceramic film as an advanced separator and polysulfide trapper in a Li–S battery: experimental and DFT investigations

Abstract

Developing an advanced separator that could stop the polysulfide shuttling remains a work-in-progress in the Li-S battery domain. Most of the work reported so far concentrates on functionalizing the commercial...

Advanced Separator Materials for Enhanced Electrochemical Performance of Lithium–Sulfur Batteries: Progress and Prospects

“…It was observed that the LBL4−PDDA−PSSNa separator did not exhibit any significant overcharging phenomenon, whereas the PE separator showed overcharging. Muthuraj et al 138 fabricated flexible Separators by coating MgAl 2 O 4 with multi−walled carbon nanotubes (MAO/ MWCNT). The zeta potential reveals the electrostatic interactions between the charged surface of MgAl 2 O 4 and polysulfides, as well as the physical adsorption of polysulfides on multi−walled carbon nanotubes.…”

“…Muthuraj et al fabricated flexible Separators by coating MgAl 2 O 4 with multi–walled carbon nanotubes (MAO/MWCNT). The zeta potential reveals the electrostatic interactions between the charged surface of MgAl 2 O 4 and polysulfides, as well as the physical adsorption of polysulfides on multi–walled carbon nanotubes.…”

Facile one-pot synthesis of biomass-derived activated carbon as an interlayer material for a BAC/PE/Al2O3 dual coated separator in Li–S batteries

“…Notably, it can improve electron mobility in sulfur cathodes, resulting in an enhancement of the electrochemical performance of LSB. To synthesize the multi-functional separator for LSB, numerous organic and inorganic materials have been studied, such as porous carbon, [44][45][46][47] polymeric materials, [48][49][50] spherical or linear ceramic materials, [51][52][53] and metallic material-modied separators. [54][55][56] These materials can play a role in not only immobilizing and suppressing materials of LiPS through physical and chemical reactions but also blocking the Li dendrite growth.…”

Research Progress of Spin-Dependent Effects in Catalysis and Energy Storage

“…[23,24] Combining the experimental results with the density functional theory calculation, the relationship between the spin-dependent effect and the electrochemical properties of the materials was clarified. [25,26] In this paper, recent studies on spin-dependent effects in different fields are presented, including electrolytic water splitting, metal-air batteries, metal-sulfur batteries, and metal-ion batteries. Based on the influence of electronic structure on the physical and chemical properties of materials, the research of spin-dependent effects in electrochemistry is discussed in this paper by different reaction mechanisms.…”