Progress and perspectives on alloying-type anode materials for advanced potassium-ion batteries

Potassium-ion batteries (PIBs) have attracted increasing interest as promising alternatives to lithium-ion (LIBs) for application in large-scale electrical energy storage systems (EESSs) owing a wide earth-abundance, potential price advantages, and low standard redox of potassium. Developmental materials use PIBs that can yield high specific capacities durability are widely sought with emerging studies on alloying-type anode offering significant prospects meet this challenge. Here, recent advances anodes their composites reviewed detail systematic way capture key aspects from fundamental working principles through major progress achievements future perspectives challenges. Emphasis is placed critical such the alloying mechanism correlation electrode design structural engineering performance enhancement crucial role electrolyte compatibility, additives binders. The review appraising all important contributions topic allows assessment research challenges provides insights directions accelerate development viable battery system.