Industrial Aspects of High-Entropy Materials for Energy Storage Applications

The rapid increase in the consumption of energy and the transition to renewable power supplies necessitate scalable, highly efficient, and economical energy storage solutions. Conventional electrode materials often experience problems with environmental stability, performance under harsh conditions, and durability. High-entropy materials (HEMs), consisting of high-entropy alloys (HEAs), high-entropy oxides (HEOs), and composites, are a class of materials that outperform conventional materials via their enhanced energy storage performance. This chapter addresses HEMs from an industrial perspective, exploring fundamental principles, various preparation processes, different state-of-the-art characterization methods, and challenges faced in energy storage. Special attention is given to the applications of HEMs in lithium- and sodium-ion batteries as well as supercapacitors, by focusing on their mechanical stability, flexibility, and cyclability. Major constraints such as scalability, material expenses, and sustainability are also explained with practical solutions. This work provides an effective roadmap for the industrial implementation of HEMs by bridging the fundamental materials science with their practical applications, which paves the way for the commercialization of high-entropy-based energy storage systems in contemporary infrastructures.