The book is a comprehensive guide that navigates the intricate landscape of cutting‑edge energy storage technologies without resorting to technical jargon. With a focus on accessibility, it covers fundamental electrochemical principles, explaining concepts such as ion transport, redox reactions, and charge transfer in a reader‑friendly manner. The book explores the critical role of solid electrodes, cathodes, and anodes in solid‑state batteries, avoiding unnecessary acronyms and complexities. Fabrication techniques for metal oxide solid electrolytes—vital for ion conduction—are presented in an approachable way. The book also examines interfacial reactions at the electrode–electrolyte interfaces, offering insights into their chemistry without relying on advanced terminology. A detailed analysis of the electrochemical reactions, mechanisms, and kinetics within solid‑state batteries is included, ensuring clarity on topics like reaction kinetics and charge transfer without requiring specialized knowledge. Practical strategies for designing, manufacturing, and evaluating solid‑state batteries are discussed without excessive technical detail. The book further explores materials engineering approaches that enhance the stability and performance of metal oxide materials. Real‑world case studies highlight successful implementations, challenges, and future perspectives, maintaining relevance while avoiding unnecessary technical intricacies. Lastly, safety considerations—including aging, degradation, failure mechanisms, and overall safety—are addressed in a way that is accessible to a broad audience. In essence, this book strives to make the complexities of next‑generation solid‑state batteries understandable to a diverse readership.

Alok Kumar Rai is an Associate Professor in the Department of Chemistry at University of Delhi (North Campus). He joined the Department as an Assistant Professor in September, 2018. Prior to that he was employed as an Associate Professor at Amity University, Noida and Assistant Professor at Amrita Centre for Nanosciences & Molecular Medicine, Kochi. He is also the recipient of prestigious Ramanujan Fellowship from DST-SERB (2016‒2021). Dr. Rai received his Ph.D in Chemistry from Indian Institute of Technology‒Banaras Hindu University (IIT‒BHU) in 2010. After that he joined Prof. Jaekook Kim lab as a post-doctoral research fellow followed by Research Professor at Chonnam National University, Gwangju, South Korea. Dr. Rai has published more than 80 peer-reviewed research articles including reviews and book chapters. Dr. Rai teaching and research interests involve inorganic chemistry, materials chemistry and electrochemistry. He is currently working on Rechargeable Batteries (Lithium-ion, Sodium-ion, Zinc-ion) and Solid State Chemistry (metal oxides, novel chemical synthesis, electronic and ionic transport etc).

Vivek Mishra is an Assistant Professor at the Amity Institute of Click Chemistry Research and Studies, Amity University, Noida, Uttar Pradesh, India. He received his Ph.D. from the Department of Chemistry, Banaras Hindu University, Varanasi. He pursued postdoctoral research at the Green Process & Material R&D Laboratory, Korea Institute of Industrial Technology, South Korea, and at the Functional Material Research Laboratory, University of Ulsan, South Korea. Dr. Mishra is a recipient of the SERB–Teachers Associateship for Research Excellence (TARE) Fellowship and the SERB–National Postdoctoral Fellowship at the Green Chemistry Network Centre, University of Delhi. His research focuses on forensic sciences, organic chemistry, advanced functional materials, click chemistry, green chemistry, and polymer chemistry. He has authored over 50 articles in international peer-reviewed journals across leading chemistry, forensic, and polymer platforms. He holds four granted international patents and four Indian patents filed in 2022–2023. Dr. Mishra has published several international books and book chapters with reputed publishers. He has contributed more than 15 book chapters of international repute and serves as a reviewer for many prestigious journals. He is also an active member of several international scientific societies.

Satendra Pal Singh received his Ph.D. in Materials Science and Technology from the Indian Institute of Technology–Banaras Hindu University (IIT-BHU), Varanasi. He is currently a Professor in the Department of Physics at the University of Lucknow. His research interests lie in materials science, nanoscience, and nanotechnology, with a focus on crystal structure characterization using powder diffraction techniques and structure–property correlation through X-ray, synchrotron, and neutron diffraction. His work primarily centers on functional ceramics, phosphors, multiferroic materials, dielectric materials, and piezoelectric materials. A significant portion of his research is dedicated to the discovery of novel materials using a combinatorial chemistry approach for energy-saving applications, including phosphors for solid-state lighting (WLEDs), display devices, and cathode/anode materials for energy storage systems. Dr. Singh has published nearly 70 research articles in high-impact international journals and holds several international patents.