Approaching the voltage and energy density limits of potassium–selenium battery chemistry in a concentrated ether-based electrolyte

Abstract

, enables fast reaction kinetics, efficient utilization of Se, and long-term cyclability of up to 350 cycles, which are impracticable in either K-S counterparts or K-Se batteries with low/moderate-concentration electrolytes. This work may pave the way for mechanistic understanding and full energy utilization of K-Se battery chemistry.

Topics & Concepts