Learn about nickel-metal hydride and lithium-ion batteries in this Japanese language lecture from Kyoto University's 2018 Faculty of Engineering Open Seminar. Professor Takeshi Abe from the Department of Industrial Chemistry explores the current state and future prospects of rechargeable batteries for renewable energy storage, focusing specifically on these two important battery technologies. Delivered at the NS Hall of Research Building 8, this segment is part of a larger seminar series examining the role of energy storage in renewable energy systems.