Learn about nickel-metal hydride and lithium-ion batteries in this lecture from Professor Takeshi Abe of Kyoto University's Department of Industrial Chemistry. Delivered as part of the 2018 Faculty of Engineering Open Lecture series, explore the current state and future prospects of rechargeable batteries for renewable energy storage. The presentation, given at the NS Hall of Research Building 8, focuses specifically on the technological aspects and applications of these two important battery types that are crucial for sustainable energy systems.