Facilitating catalytic activity of indium oxide in lithium-sulfur batteries by controlling oxygen vacancies

Defect‐Rich Single Atom Catalyst Enhanced Polysulfide Conversion Kinetics to Upgrade Performance of Li–S Batteries

“…In addition, metal compounds (such as fluoride, oxide, nitride, and sulfide) [34][35][36] show unique advantages in separator modification owing to their strong adsorption and catalytic polysulfides conversion ability. Zou et al [37] designed a modified separator with indium oxide nanoparticles containing oxygen vacancies, which showed strong adsorption and catalytic effects and considerably improved the electrochemical performance of the battery. Although these materials can inhibit polysulfide shuttling and improve the electrochemical performance, the improvement in the energy density and long life of the battery is limited.…”

Rare‐Earth Doped Configurational Entropy Stabilized High Entropy Spinel Oxide as an Efficient Anchoring/Catalyst Functional Interlayer for High‐Performance Lithium‐Sulfur Battery

“…[56,57] The oxygen vacancies can also effectively increase the binding energy between TM-RE HEO and lithium polysulfides (LiPSs) as well as, reduce the energy barrier of the LiPSs decomposition reaction, [58] which in turn, promotes/accelerates the LiPSs conversion reaction kinetics. [59,60] Adsorption experiments and, ex situ XPS results prove that the oxygen vacancies improve the adsorption performance of TM-RE HEO to LiPSs and can effectively inhibit the shuttle effect of LiPSs.…”

Sheet-on-sheet ZnIn2S4@RGO-modified separators with abundant sulfur vacancies for high-performance Li–S batteries

“…[40][41][42] In addition, the bond lengths of Li-S and S-S bonding in Li 2 S 6 on Vs-ZIS were much longer that on ZIS (Table S1 †), indicating that Vs-ZIS could weaken the S-S bonding of Li 2 S 6 and thus promoted the conversion of LiPSs. 43,44 Moreover, the adsorption-catalysis mechanism of Vs-ZIS@RGO towards LiPSs was intuitively described in Fig. 8c.…”