Oxygen‐Deficient Metal Oxides for Supercapacitive Energy Storage: From Theoretical Calculation to Structural Regulation and Utilization

Nanostructured metal oxides (MOs) have been a well-concerning focus for the development of high-performance supercapacitors due to their capability delivering pseudocapacitive contribution. To effectively promote potential MOs this purpose, regulation electronic configuration, electrical conductivity, and active sites should be conducted where introduction oxygen vacancies (OVs) into offers promising prospects. As result, comprehensive summary latest progress in field is paramount importance. After theoretically analyzing role OVs boosted supercapacitive energy storage performance at molecular/atomic levels, possibility controllably engineering discussed provide valuable guides experimental design. Then, continuously emerged technologies regulating are classified simple yet clear manner, namely, direct incorporation postregulation. typical examples oxygen-deficient including single transition MOs, binary composites with improved electrochemical discussed. Finally, challenges prospects rising outlooked conclude review.