High-entropy oxides as efficient bidirectional sulfur catalysts for low-temperature lithium–sulfur batteries
Key Points
The study aims to develop a catalyst that can efficiently convert lithium polysulfides and reduce the shuttle effect in lithium–sulfur batteries.
Developed a high-entropy oxide catalyst on reduced graphene oxide.
Evaluated the catalyst's performance in lithium polysulfide conversion.
Assessed the suppression of the shuttle effect during battery cycling.
The high-entropy oxide catalyst showed enhanced conversion rates for lithium polysulfides.
Significantly reduced shuttle effect was observed compared to conventional catalysts.
Abstract
In this work, a high-entropy oxide catalyst uniformly anchored on reduced graphene oxide is developed with diverse active sites to promote lithium polysulfide conversion and suppress the shuttle effect.