Book excerpt: This book details the latest R&D in electrochemical energy storage technologies for portable electronics and electric vehicle applications. During the past three decades, great progress has been made in R & D of various batteries in terms of energy density increase and cost reduction. One of the biggest challenges is increasing the energy density to achieve longer endurance time. In this book, recent research and development in advanced electrode materials for electrochemical energy storage devices is covered. Topics covered in this important book include: Carbon anode materials for sodium-ion batteries Lithium titanate-based lithium-ion batteries Rational material design and performance optimization of transition metal oxide-based lithium ion battery anodes Effects of graphene on the electrochemical properties of the electrode of lithium ion batteries Silicon-based lithium-ion battery anodes Mo-based anode materials for alkali metal ion batteries Lithium-sulfur batteries Graphene in Lithium-Ion/Lithium-Sulfur Batteries Graphene-ionic liquid supercapacitors Battery electrodes based on carbon species and conducting polymers Doped graphene for electrochemical energy storage systems Processing of graphene oxide for enhanced electrical properties