Progress of Organic Carbonyl Compounds as Electrode Materials for Sodium−ion Batteries

Abstract

Organic electrode materials are expected to be promising candidates for secondary batteries due to their high capacity, abundant resources, low cost, and structural controllability. Currently, organic electrode materials have been applied in various metal-ion battery systems, however, there are still many challenges for the large-scale commercial application of organic electrode materials, such as low redox potential, low intrinsic conductivity, and solubility in organic electrolysis. To address the technological bottleneck of organic electrode materials, scientists have focused their attention on regulating the organic molecular structure and optimizing the experimental conditions. This paper reviews the research progress of organic carbonyl compounds in recent years, and introduces the redox mechanism and basic properties of organic carbonyl compounds. Finally, it summarizes the current challenges and possible development directions of organic carbonyl compounds, which provides a reference for the design and research of organic electrode materials in the future.