Layered materials have attracted much attention in this decade because of their high active surface area and the ability to tune the properties through the formation of layered structures for various applications. This compliments the layered materials with high mechanical flexibility, chemical stability, and superior electrical and thermal conductivities, which make them a great alternative for electrochemical applications such as electrochemical energy conversion, storage devices, and environmental remediation. This book offers the state of the art of research on the synthesis, properties, characterization, and electrochemical applications of layered materials and highlights the present challenges related to environmental issues. It provides fundamental, experimental, and theoretical knowledge about layered materials, including graphene, graphitic carbon nitride, boron nitride, and MoS2-, Li-, and Mn-rich oxide materials and MXenes, and elaborates their synthesis, physicochemical properties, and structure-property-electrochemical performance. The book also covers the recent progress in developing layered material-based electrochemical energy conversion systems and storage devices and identifies immediate research needs and directions in developing layered material-based systems for future applications.