P-type redox-active organic materials as cathodes for dual-ion batteries : Principles and design strategies

Dual-ion batteries with p-type redox-active organic materials as cathodes have potential application prospects in the field of energy storage. In this review, we will first introduce the basic anion storage concepts, principles, and characterization methods of organic cathode materials, and then introduce how to design high-performance p-type redox organic cathode materials from the perspectives of capacity, voltage, rate, and cycle-life, as well as the relationship between structure and performance. Next, the effects of solvent molecules and anion species in solute on the performance of p-type organic cathode-based dual-ion batteries will be discussed. Finally, we will share our conclusions and projections for the future research directions of this intriguing topic. © 2024 Published by Elsevier B.V.