Tripathi, Balram published the artcileBiFeO3 Coupled Polysulfide Trapping in C/S Composite Cathode Material for Li-S Batteries as Large Efficiency and High Rate Performance, Category: ethers-buliding-blocks, the main research area is carbon sulfur composite; bismuth iron oxide polysulfide composite cathode lithium sulfur battery.
We demonstrated the efficient coupling of BiFeO3 (BFO) ferroelec. material within the carbon-sulfur (C-S) composite cathode, where polysulfides are trapped in BFO mesh, reducing the polysulfide shuttle impact, and thus resulting in an improved cyclic performance and an increase in capacity in Li-S batteries. Here, the built-in internal field due to BFO enhances polysulfide trapping. The observation of a difference in the diffusion behavior of polysulfides in BFO-coupled composites suggests more efficient trapping in BFO-modified C-S electrodes compared to pristine C-S composite cathodes. The X-ray diffraction results of BFO-C-S composite cathodes show an orthorhombic structure, while Raman spectra substantiate efficient coupling of BFO in C-S composites, in agreement with SEM images, showing the interconnected network of submicron-size sulfur composites. Two plateaus were observed at 1.75 V and 2.1 V in the charge/discharge characteristics of BFO-C-S composite cathodes. The observed capacity of ∼1600 mAh g-1 in a 1.5-2.5 V operating window for BFO30-C10-S60 composite cathodes, and the high cyclic stability substantiate the superior performance of the designed cathode materials due to the efficient reduction in the polysulfide shuttle effect in these composite cathodes.
Energies (Basel, Switzerland) published new progress about Batteries. 143-24-8 belongs to class ethers-buliding-blocks, name is 2,5,8,11,14-Pentaoxapentadecane, and the molecular formula is C10H22O5, Category: ethers-buliding-blocks.
Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem