This text treats the fundamental and experimental aspects of solid state batteries, including the basic requirements for optimum performance of electrodes and electrolytes. Coverage includes key issues in solid state batteries such as electrode/electrolyte interface problems, charge mechanism and mass transport in solid electrodes and electrolytes. The authors also discuss the physics and chemistry of insertion electrodes and glassy electrolytes and provide experimental approaches for determining the physical and chemical properties of battery materials. With an interdisciplinary approach to the solid state physics and chemistry, materials science and electrochemistry of battery materials, the text should be a useful reference not only for specialists but also for chemists, physicists and materials scientists who wish to enter the field of battery technology.