Boosting Li–S redox chemistry by the plasmonic effect of MXene

Abstract

The plasmonic effect of MXene induces localized photothermal heating and hot-carrier generation, collectively reducing the ionic diffusion resistance and lowering the activation energy of lithium polysulfide conversion. Consequently, the accelerated redox kinetics greatly enhance the capacity and energy efficiency of Li–S cells under near-infrared irradiation.