Book excerpt: Advanced Two-Dimensional Material-Based Heterostructures in Sustainable Energy Storage Devices provides a detailed overview of advances and challenges in the development of 2D materials for use in energy storage devices. It offers deep insight into the synthesis, characterization, and application of different 2D materials and their heterostructures in a variety of energy storage devices, focusing on new phenomena and enhanced electrochemistry. This book: Introduces 2D materials, synthesis methods, and characterization techniques Discusses application in a wide range of batteries and supercapacitors Offers perspectives on future investigations necessary to overcome existing challenges This comprehensive reference is written to guide researchers and engineers working to advance the technology of energy-efficient energy storage devices.