MXene-polymer hybrid composites for advanced energy storage: insights into supercapacitors and batteries

Modern energy storage technologies are an active area of research because of their increasing demand in electronic gadgets, automotive, and electric vehicle applications. Supercapacitors and batteries substantially meet such needs due to their internal surface area, high surface-to-volume ratio, as well as high energy density and mobility of the two-dimensional (2D) materials. As a result, 2D materials—particularly MXene, comprised of carbide nitride and corresponding combinations—are ideal options for energy storage devices and applications. The present review focuses on MXene and corresponding composites—especially polymer-based. We also provide an overview of MXene and polymer harnessing methods, as well as corresponding, e.g., electrical and mechanical features. The use of MXene and polymeric materials in batteries and supercapacitors—as well as upcoming difficulties and results—are all covered in the context of energy storage applications.