Recent Progress of Transition Metal‐Based Oxide Composite Electrode Materials in Supercapacitor

Abstract As an electrochemical energy storage device with high power density, supercapacitors are favored by researchers. Transition metal‐based oxide materials have attracted extensive attention from researchers due to their high theoretical pseudocapacitance characteristics and are used to design and construct high‐performance composite electrode materials for supercapacitors. In this miniature review, the application and existing problems of several typical transition metal‐based oxide composites in the field of supercapacitors in recent years are summarized. Finally, the development trend of transition metal‐based oxide composites in the field of supercapacitors is prospected. The aim is to provide some timely and effective new ideas for the research work of researchers in related fields.