日本全固态电池新技术将容量提高至3倍

Core Viewpoint - The research team from Kyoto University and Toyota has developed a "full-solid-state fluoride ion battery" that significantly enhances energy capacity compared to traditional lithium-ion batteries, aiming for practical application in electric vehicles (EVs) after 2035 [1][2]. Group 1: Battery Technology Advancements - The new positive electrode material "copper nitride" allows each nitrogen atom to obtain three electrons, resulting in a volumetric capacity that is three times that of lithium-ion batteries and a weight capacity that is twice that [1]. - The anticipated volumetric energy density of the new battery is expected to exceed twice that of lithium-ion batteries, potentially increasing the range of electric vehicles from approximately 600 kilometers to around 1200 kilometers [2]. Group 2: Research Collaboration and Future Development - The research collaboration includes not only Kyoto University and Toyota but also Tokyo University, Hyogo Prefectural University, Tohoku University, and Tokyo University of Science, with findings published in the American Chemical Society journal [2]. - The development of the full-solid-state fluoride ion battery requires further advancements in the negative electrode and solid electrolyte, which the research team plans to pursue [2].