Electrocatalysis of lithium polysulfides: current collectors as electrodes in Li/S battery configuration.

ABSTRACT: Lithium Sulfur (Li/S) chemistries are amongst the most promising next-generation battery technologies due to their high theoretical energy density. However, the detrimental effects of their intermediate byproducts, polysulfides (PS), have to be resolved to realize these theoretical performance limits. Confined approaches on using porous carbons to entrap PS have yielded limited success. In this study, we deviate from the prevalent approach by introducing catalysis concept in Li/S battery configuration. Engineered current collectors were found to be catalytically active towards PS, thereby eliminating the need for carbon matrix and their processing obligatory binders, additives and solvents. We reveal substantial enhancement in electrochemical performance and corroborate our findings using

SUBMITTER: Babu G 

PROVIDER: S-EPMC4350110 | biostudies-literature | 2015 Mar

REPOSITORIES: biostudies-literature