Progress and prospect of flexible MXene‐based energy storage

Abstract The growing need for flexible and wearable electronics, such as smartwatches and foldable displays, highlights the shortcomings of traditional energy storage methods. In response, scientists are developing compact, flexible, and foldable energy devices to overcome these challenges. MXenes—a family of two‐dimensional nanomaterials—are a promising solution because of their unique properties, including a large surface area, excellent electrical conductivity, numerous functional groups, and distinctive layered structures. These attributes make MXenes attractive options for flexible energy storage. This paper reviews recent advances in using flexible MXene‐based materials for flexible Li−S batteries, metal‐ion batteries (Zn and Na), and supercapacitors. The development of MXene‐based composites is explored, with a detailed electrochemical performance analysis of various flexible devices. The review addresses significant challenges and outlines strategic objectives for advancing robust and flexible MXene‐based energy storage devices.