Publications by authors named "Ravindra Kumar Bhardwaj"
Article Synopsis
- - This study examines the confinement of Mg-polysulfides within two different porous materials, toray carbon paper (TC) and multiwalled carbon nanotubes (CNT), to enhance rechargeable Mg|S batteries using Raman and UV-vis spectroscopy.
- - Operando Raman spectroscopy revealed that CNT can better trap higher-order Mg-polysulfides due to their structure and positioning in the electrolyte, contributing to less dissolution compared to sulfur trapped in TC.
- - The findings show that batteries with CNT-S perform significantly better, achieving almost double the specific capacities at 1 C compared to those with TC-S, highlighting the importance of material choice for battery efficiency.
The extent of confinement of soluble metal polysulfides inside a sulfur cathode strongly determines the performance of metal-sulfur rechargeable batteries. This challenge has been largely tackled by loading sulfur inside various conducting porous scaffolds. However, this approach has not proven to be fully effective because of poor chemical interaction between the scaffold and polysulfides.
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