The shuttling of soluble lithium polysulfides between the electrodes leads to serious capacity fading and excess use electrolyte, which severely bottlenecks practical Li-S batteries. Here, selective catalysis is proposed as a fundamental remedy for consecutive solid-liquid-solid sulfur redox reactions. proof-of-concept Indium (In)-based catalyst targetedly decelerates solid-liquid conversion, d...

Polysulfide shuttle effect, causing extremely low Coulombic efficiency and cycling stability, is one of the toughest challenges hindering development practical lithium sulfur batteries (LSBs). Introducing catalytic nanostructures to stabilize otherwise soluble polysulfides promote their conversion solids has been proved be an effective strategy in attacking this problem, but heavy mass catalyst...

Room-temperature alkali metal–sulfur batteries are promising alternatives to lithium-ion because of their high capacity and low inherent cost. Herein, we report MXene (Ti3C2Tx) as a host confine sulfur (S8), enabling the use commercialization-friendly carbonate electrolyte in batteries. The multilayer structure provides tunable spacing for S8 confinement, its unique interlayer prevents adverse ...