Morphology‐Dependent High‐Entropy Materials for Energy Storage Applications

High-entropy materials (HEMs) have garnered increasing attention in recent years for their exceptional configurational entropy and resultant stability in multi-principal element systems, offering a versatile platform for innovative energy storage solutions. A critical yet underexplored aspect of their design is morphological control, which strongly influences ion diffusion, electron transport, and surface/interface reactions. This chapter delves into the morphology-dependent properties of HEMs and examines how shape, size, and porosity dictate their functionality in advanced battery and supercapacitor systems. We present various synthesis routes, ranging from solid-state methods to template-assisted and solution-based approaches, that enable precise control over their morphology. We also discuss the interrelationship between the composition, crystal structure, and morphological features of HEMs, highlighting recent experimental and computational advances that unravel their complex entropy-driven stabilization mechanisms. Finally, we address current challenges, including scalability, cost, and safety considerations, and propose future research directions to facilitate the practical implementation of morphology-tailored HEMs in next-generation energy storage technologies.