There has been a search for new supercapacitor materials that offer superior storage qualities during the past ten years, owing to the needs of the electrochemical energy storage sector. Supercapacitors, which have a higher power density than batteries but a lower energy density, are among the most promising energy storage technologies. Creating innovative materials that increase energy storage efficiency is essential to fulfilling the world's growing energy needs. Recent research has centred on the application of various electrode materials in supercapacitors. This review discusses the parameters of an efficient supercapacitor and the usage of metal oxynitrides as electrode materials. Due to their high cyclability (up to 10⁵ cycles), strong intrinsic conductivity (30000–35000 S cm⁻¹), good wettability, corrosion resistance, and chemical inertness, metal oxynitrides are considered prospective candidates for electrochemical energy storage. This review elaborates on the recent advances in transition metal oxynitrides and compares the properties of transition metal oxynitrides with post-transition and non-transition metal oxynitrides in supercapacitor applications. We envision future paths for this category of energy storage materials in light of this critical study.

由于电化学储能领域的需求，在过去十年中一直在寻找具有卓越存储质量的新型超级电容器材料。超级电容器具有比电池更高的功率密度但更低的能量密度，是最有前途的储能技术之一。创造可提高储能效率的创新材料对于满足世界不断增长的能源需求至关重要。最近的研究集中在各种电极材料在超级电容器中的应用。本综述讨论了高效超级电容器的参数以及金属氮氧化物作为电极材料的使用。由于其高循环性（高达 10 ⁵个循环）、强大的本征电导率（30000–35000 S cm ^-1)、良好的润湿性、耐腐蚀性和化学惰性，金属氮氧化物被认为是电化学储能的潜在候选者。本综述详细阐述了过渡金属氮氧化物的最新进展，并将过渡金属氮氧化物与后过渡金属氮氧化物和非过渡金属氮氧化物在超级电容器应用中的性能进行了比较。根据这项重要研究，我们设想了此类储能材料的未来发展方向。